The Safe, Effective Supplement That Can Improve Your Body and Brain
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Summary
What if there was a supplement that could build muscle, maintain bone health, fortify the brain against cognitive decline due to age and stress, and alleviate depression? Well there is such a supplement, it s been around for a long time, and it s not even expensive. It s creatine. Here to unpack the myths, benefits, and recommended ways to use creatine is Dr. Darren Kandow, a professor of exercise physiology and nutrition who supervises the aging muscle and bone health laboratory at the University of Wisconsin-Madison. Dr. Kandow specializes in studying creatine and has published over 70 papers on the subject. Today on the show, Dr. Karren explains how a supplement often associated with bodybuilders may actually be beneficial for just about everyone, athletes and non-athletes alike.
Transcript
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brett mckay here and welcome to another edition of the art of manliness podcast
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what if there was a supplement that could build muscle maintain bone health fortify the brain
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against cognitive decline due to age and stress and alleviate depression has been proven safe
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and comes with almost no side effects well there is such a supplement it's been around for a long
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time and it's not even expensive it's creatine here to unpack the myths benefits and recommended
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ways to use creatine is darren kandow professor of exercise physiology and nutrition who supervises
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the aging muscle and bone health laboratory at the university of vagina darren specializes in
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studying creatine and has published over 70 papers on the subject today on the show darren explains
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how a supplement often associated with bodybuilders may actually be beneficial for just about everyone
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athletes and non-athletes and the young and old alike he impacts what creatine does in the body
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and how its benefits extend beyond the body and into the brain he offers recommendations on the
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formulation of creatine to use suggested dosage and whether it should increase with age and how to
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avoid the bloating effect he also shares what we know about creatine safety including its effect on
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the kidneys and whether it can cause hair loss after show's over check out our show notes at awim.is
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all right darren kandow welcome to the show thanks for having me really excited to be here
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so you research a supplement that i'm sure a lot of our listeners have taken or have probably heard of
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and that is creatine and we're going to do a deep dive into creatine today i think there's a lot of
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misconceptions about it so start off with just basic questions what is creatine yeah actually
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creatine is very similar to a protein it's naturally found in our diet if you eat red meat or seafood
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you're getting about one to three grams a day but a lot of people don't know we actually naturally
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produce this in our body primarily in the liver and brain so those are the two main areas and of course
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that leads into the third probably the global area which is creatine supplementation so again it's in
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our diet we naturally produce it in our body and it's probably why it has an exceptionally high safety
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profile all right so creatine our body makes it we get it from food what does it do we'll talk about
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specific effects creatine has on our physiology but in general what does creatine in our do in our body
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like why does our body make it and why do we need it from food yeah basically why we make it and or get
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it from food is is because it helps maintain the energy currency of all our cells so a lot of your
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listeners are familiar with adenosine triphosphate or atp but we need atp to do any activities of daily
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living and keep our body moving so carrying groceries lifting weights running your muscles primarily are using
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atp to maintain the movement and creatine in the form of phosphocreatine just comes to the rescue
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it's kind of like batman and robin a batman is atp or energy and robin is the sidekick that helps
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maintain those energy currency of our cells so that probably why a lot of people who take creatine or
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increase it through their diet they can exercise longer more intensely they can recover better in
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other words athletes usually get bigger stronger faster okay so creatine we use it
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for metabolism that is that is correct okay and then i mean kind of sort of recap of metabolism
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we've talked about this on the podcast before there's different levels of metabolism there's
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oxidative metabolism that's where your body's primarily using uh fat and oxygen to create atp is
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that right did i get that right that is correct yeah think of when you're walking yeah okay and that
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form of metabolism it creates a lot of energy but it takes a long time to produce that energy yeah
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that is correct it's a very slow process to break down body fat as we all know it's step by step by
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step process and it does take a long period of time yeah and then after that if you increase the
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intensity of your movement of your activity that's when you use anaerobic metabolism and you're using
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carbohydrates or glucose to create atp that is a hundred percent correct from the muscle or the liver
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that's correct okay and that's so you're using anaerobic and like you're not using oxygen in
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that form metabolism is that right yeah if it's a hundred if it's a hundred percent pure anaerobic
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very little oxygen is actually incorporated or utilized so anything maybe over 30 seconds of intense
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exercise that's only when oxidative phosphorylation or capacity really kicks in or predominates but if
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you were at the watching the olympics and a hundred meter sprint is less than 10 seconds these individuals
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are actually not breathing when they're running which might be a little counterintuitive to a lot
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of people listening they hold their breath they use something called myoglobin which is an oxygen
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storage form in the muscle but they're also highly relying on creatine creatine is an anaerobic compound
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that really comes into aid during really explosive high intensity movements sprinting weightlifting comes to
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mind intermittent sports but once you're finished the event that's when the mitochondria or oxidative
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capacity comes in to replenish those creatine stores so the interesting thing is a lot of people
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taking creatine have done it during weight training they do a set they rest for a couple minutes they do
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another set where we see the big bang for its dollars when creatine is coming to the aid in sets
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two three and four they can perform more weight or more repetitions because they had higher amounts in
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the body and that's really where it became famous right and so what creatine does it takes a phosphate
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molecule and kind of adds it to the whole metabolic system to create more atp yeah so when when we can
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produce creatine just say in the liver or we eat it just say if you had a salmon steak it takes about
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an hour to sort of peak in the blood and then it goes through a specific doorway into our muscle
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primarily and when it's in there you're right it's linked to a phosphate bond and then it becomes too
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large to just disassociate and leave the muscle so it becomes trapped but when it does get metabolized
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with exercise whichever it's broken down into something called creatinine so when creatine
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leaves the the cell it's in the form of creatinine but when it's in the cell it's linked to phosphate
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and that's when it becomes fossil creatine which gives all the magic with it okay so overall creatine
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plays a role in metabolism it helps create atp which allows us to do move like sprint run lift weights
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do a heavy deadlift everything i think most people when they talk about creatine or think about
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creatine they associate it with muscles so let's talk about that specifically what are the benefits
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of creatine when it comes to muscle mass and strength why are bodybuilders taking creatine
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yeah the the benefits are enormous and really elegant so there's probably over a thousand peer
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refereed studies now showing that creatine improves lean mass some areas of pure regional muscle mass
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strength endurance power and also muscle recovery so when you have more creatine in the muscle
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it increases the capacity to do work so this is really important creatine without exercise will
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give very minimal effects you can get some acute effects maybe an improvement in strength or endurance
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with a really really high load without exercise but exercise unlocks all the magical benefits from a
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muscle biology perspective with creatine so there's really good established mechanisms for that but in
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in summary when individuals take creatine through supplementation or the diet their muscle has a
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greater ability to perform more work that either is more reps more sets and potentially more frequent
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training sessions so usually training volume will go up and that probably explains why a lot of people
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either get an improvement in strength lean tissue mass or endurance okay so that's a good point the creatine
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itself doesn't increase muscle mass or strength it just allows the muscle to train harder for longer
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which will give you more stimulus to drive hypertrophy and strength yeah all the good mechanisms that get
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turned on like things like satellite cells and insulin like growth factor and things like that that we could
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probably talk about from a pure mechanistic standpoint they have been shown to be increased primarily in young
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adults with creatine supplementation in combination with resistance training very minimal research suggests that
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these pathways get turned on in a meaningful way they might get turned on in from a biological way but from a
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meaningful human way without exercise okay so if someone's doing i mean you would see the effect of creatine if
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you're so let's talk about these weightlifting as an example if you're on set two if you didn't supplement with
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creatine you'd probably feel that i'm kind of depleted i can still do it but i'm it's pretty
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tough if you have supplemented with creatine your muscle had been saturated with creatine like your
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muscles have something to fall back on to to create the atp it needs to go really hard in that second
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set a hundred percent so even if you didn't change the weight let's say for set one the group that was
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on creatine did 100 pounds on the bench press the group that was on placebo also did 100 pounds
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the first set maybe they're each group did about eight to nine repetitions no difference now when it comes
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to sets two three and four the creatine group still with 100 pounds can definitely do more
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repetitions in sets two three and four so when you add up the total amount of repetitions over those
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sets the creatine group in theory did more and if you do that over weeks and months that's probably
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why an individual will put on lean tissue mass and definitely improve muscle performance does creatine
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have any effect on the neuromuscular aspect of strength like does it help you contract your muscles
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harder and things like that oh it does it really reduces relaxation time so the muscle can contract
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more often and the other theory is there was hope for multiple sclerosis where the the axon going to
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all our or the the power cord if you will going to all our muscles was frayed there was some hope there
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with multiple sclerosis but we didn't really see a lot of promise in that disease state clinical
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population but creatine now has been shown to act as a neurotransmitter pitcher caffeine you know
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something like that but creatine there's a little bit of evidence to suggest that acts as a
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neurotransmitter which kind of makes sense because now you may be able to recruit more muscle fibers
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primarily those type 2 muscle fibers and that may be why some of the best evidence suggests that creatine
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improves maximal strength and measures a muscle power so that is huge applications for athletes
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yes allow you to lift a one rep max that's heavier yeah i would say the one rep max is probably the
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most established benefit from creatine supplementation over time next to it would be probably more
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repetitions performed to volitional fatigue or indices of muscle power but by far if you had to
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ask me what's the best reason to take creatine i would probably say overall it's the improvement in
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muscle strength okay all right so creatine it can increase muscle strength can increase muscle mass
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because it allows you to do more volume which gives you your muscles more stimulus to drive muscle
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protein synthesis but creatine isn't just about muscles it in fact creatine helps a whole bunch
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of other stuff and this is what a lot of your research is showing and one thing i was surprised
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about is that creatine can help with our bone health so how does creatine help with our bone health
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yeah it's taken on almost a new life of its own it's pretty much for anybody across the lifespan and
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and a study done in 2003 or switzerland when they put bone building cells if you go all the way
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back to biology if you put bone building cells in the presence of creatine in a petri dish
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these cells became energized and so the theory was wow if these bone building cells have more energy
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maybe they can potentially in a human start laying down more calcium and phosphate salts and maybe the
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skeleton can get stronger and of course that would have enormous application for males and females
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but primarily biological females prone to osteopenia and osteoporosis and there was a couple of
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pioneering rodent studies done out of mcmaster university in ontario showing that rodents
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improved bone mineral density when creatine was added to their food and then of course as a segue
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of you mentioned we've done a number of clinical trials now looking at long-term creatine supplementation
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and exercise bone tissue takes a long time to turn over so you probably need at least six months of
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exercise and we've shown from anywhere 0.1 gram to 0.14 grams per kilogram so that's about 8 to 12
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grams for the average person if you take that per day in combination with exercise primarily weight
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training you can preserve some aspects of bone health primarily around the hip region this is
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primarily shown in post-menopausal females but we've also shown some benefits in healthy males
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now i will preface that we did not increase bone mineral density at best we preserved bone mineral
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density in some of those regions and simply showed that there's improvement in bone geometry but there's
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only been about four studies to show that the vast majority do not show these effects so we need a lot
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more clinical research especially in disease state populations but there is some evidence to suggest it has
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some bone beneficial effects okay and you have to do it in combination with exercise it's not just like
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you take creatine and you're you're going to maintain bone mineral density yeah so this is crucial there
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is some studies regarding skeletal muscle that without exercise creatine can have some very small
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very small favorable effects but we don't see any benefits without exercise on bone so you need that
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mechanical stimuli from brisk walking or more importantly weight training to cause the muscle to pull on the
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bone all throughout the day to cause bone to improve so there's been studies in brazil worldwide not
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showing any benefits from creatine without exercise and a little bit different than skeletal muscle the
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lowest dose ever been shown to have any bone benefits is eight grams a day whereas skeletal muscle
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the lowest dose has been about two to three grams a day so there is a difference from a tissue perspective
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okay so this is interesting research if you have an older parent or maybe a wife starting you're going
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through menopause but this would be useful to know take some creatine and exercise it can help maintain that
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bone mineral density do we have any research on whether creatine helps connective tissues like
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tendons and ligaments we don't and i've asked a few colleagues i think now with the big push on
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collagen where collagen is kind of not really that great for muscle protein synthesis but i thought wow
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what if we could combine creatine and collagen protein into a research study i think it would have
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some potential benefits there especially for people prone to osteoarthritis osteopenia or osteoporosis
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i think those two synergistic compounds might play a role but again we need the research to do that
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but as creatine by itself nothing on tendon bone or cartilage per se okay so creatine can help increase
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muscle mass and strength it can help potentially stave off osteoporosis you mentioned creatine supplementation
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can help endurance athletes walk us through that because typically when i think of creatine i think
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of it you know as far as you know for sprinters or power lifters how can creatine help you know
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someone running a 5k or a marathon yeah that area has really come into its its own in the last five or
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six years and you're right creatine was just for anaerobic athletes get bigger stronger faster and
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and then we started to look at research in soccer players long distance running some of the best studies show
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that creatine really speeds up recovery in in post ironman and post long marathon training but it has
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improvements in agility and balance and recovery and swimming soccer so it's not just for the weight
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room it seems to be a metabolite that can really have some promise for endurance type athletes as well
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and i think it's important to to note even if you're taking part in an endurance activity like you're not
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just in that oxidative metabolism state where you're using fat like when people think about metabolism
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they often think of it as sort of these like very discreet things like you're either in fat burning
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zone or either in carb burning like it's like a spectrum it's all going on at the same time it's
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very dynamic and so in any endurance event i've run a few 5ks i know at the end you do that kick
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you're going as hard as you can you're basically doing a sprint i imagine an athlete who's got a you
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know good store of creatine in their muscles they're probably going to do better at that point in the
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race than someone who does it yeah and and you're right all three energy systems are turned on
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simultaneously no matter what you're doing it just depends on the activity which would dictate
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predomination and so you know if you're on a treadmill or as you said you're doing the marathon
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and then you sprint you don't have time to wait for your anaerobic a lactic system to kick in has
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already kicked in at the beginning it's just which one predominates and you're right the more creatine
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that's in the muscle that can actually delay glycogen depletion a lot of people don't realize
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this but if you utilize creatine more anaerobically that'll offset the reliance on glycogen which we
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only have a little bit amount in our liver and skeletal muscle and then that'll further delay
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oxidative phosphorylation so that's probably why individuals when they do take creatine they can sort
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of exercise at a higher capacity really train that anaerobic system and that'll delay the reliance on a
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really slow producing energy system such as fat burn okay so marathon runners can benefit from
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creatine supplementation or just increasing their creatine levels right some other exciting research
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is coming out about creatine creatine doesn't just affect your athletic performance it can also
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influence or affect our brain health so tell us about the research about creatine and brain health
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yeah this is so exciting so this is probably the big focal point for the next 20 or 30 years and
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creatine can get into the brain but it's really difficult so as we all know the brain has the
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blood brain barrier that little force field that prevents toxin particles from getting into our
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precious tissue a creatine can accumulate into the brain but it's at a slower rate so our skeletal muscle
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acts as a vacuum it sucks up all the creatine from our blood but the brain is resistant to that so when
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it does get in it takes a long time and also that's different our brain does make its own creatine
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so the brain might say hey we don't really need a lot from supplementation only during times of
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metabolic stress creating supplementation can accumulate in the brain which is fantastic and
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it's now been shown to have some cognitive memory benefits for older adults and what's really coming
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to the forefront is during times of metabolic stress in the brain such as sleep deprivation
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so i don't know anybody that's not sleep deprived or sometime i would consider jet lag up there as well
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the mechanism seems to be very similar to recovery of the muscle the brain does rely on creatine just like
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bone and muscle and so when the brain is stressed it needs help even though it makes its own it may need
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help from circulation so i think when the brain is stressed students staying up all night if you're
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flying to europe and you're susceptible to jet lag sleep deprivation whatever it is that's when you would
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probably notice the benefits from creatine if you are not metabolically stressed you get adequate sleep
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everything's good you're probably not going to notice those beneficial effects okay so creatine can help
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your brain during times of stress so sleep deprivation so what is the how are you going to notice it so
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let's say you don't supplement with creatine and you're sleep deprived everyone knows like you feel
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just groggy and tired and kind of cranky how would you feel if you take supplement with creatine
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yeah i'll put it from an experimental perspective and i'll tell you what happens in me specifically
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so from an experimental perspective it's very easy that when we have people volunteer overnight to be
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sleep deprived they're able to do sort of puzzles and sort of like a task on a computer more
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steady compared to those on a placebo so maybe performing tasks of daily living the next day is
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easier i sure notice my fogginess goes away i've had covet now three times and i've had sort of the brain
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fog twice but when i go fly to europe or other parts of the world i find creatine really decreases the
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fogginess and allows me to sort of get back to the feeling normal the next couple days and i even
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increase my creatine a little bit more when i am flying overseas just for the hope that it can have
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some beneficial effects and then you also talk about you just mentioned that it can help with
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age-related mental deterioration so yes what tell us about that research yeah so there's been a couple
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meta-analysis showing that in healthy adults these are individuals without dementia or alzheimer's or
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related they've been able to have an improvement in memory and some cognitive function and that might make
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sense as the brain just like any other organ starts to deteriorate as we get older so we are starting
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to look at some areas maybe dementia and alzheimer's which would have massive implications moving forward
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but overall we're not seeing any huge benefits in parkinson's huntingsons there's been no research
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that's been published on alzheimer's but stay tuned for that i know those studies are in the works
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there's a great group out of utah a group of psychiatrists which have clearly shown huge benefits
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primarily in females with clinical depression creatine when added to their medication program seems
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to alleviate symptoms of depression anxiety and ptsd so some more randomized control trials will be
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coming up there and and one of all the main mechanisms with all this seems to that it decreases
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inflammation in the brain or oxidative stress we need a lot more evidence to look at other
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mechanistic actions but seems to be the theory yeah the uh that's interesting creatine's connection
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to mental illness and inflammation we've had a few podcast guests psychiatrists and psychologists who've
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explored inflammation's connection to right mental illness particularly depression like there's the
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guy i forgot his name but he he studies uh sauna use okay and how it alleviates depression and some
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some types of depression and the theory is there is that depression is an inflammatory or a type of
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depression can be an inflammatory response and so by adding the sauna you acutely increase inflammation
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and your body can better handle inflammation and reduces inflammation overall and then there's another
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guy who had a book out i forgot again i can't remember off the top of my head but basically the
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argument he made a lot of the mental illnesses that we have their metabolism problems in our brain
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right yeah yeah there's there's so much out there now an important distinction is that some of
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these studies that show brain benefits have been without structured exercise so now this is important
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as the question came up should i just take creatine on the days i work out i now tell people take it
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every day just in hope that some of that creatine will be trickling into the brain on a daily basis and
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eventually accumulate it takes a long time to accumulate in the brain if you're taking a low dose
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of creatine it could take several months if you're taking a super high dose a little bit less but now
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that's why it's recommended to probably take creatine on a daily basis either from one of those potential
00:23:13.040
mechanistic standpoints but we're actually seeing some benefits without structured exercise so to that
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question should everybody on the planet consider creatine i i can't say yes or no but there's evidence
00:23:24.440
to suggest it has some potential to have some beneficial effects we're going to take a quick break for a word
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from our sponsors and now back to the show okay so we talked about the many benefits of creatine um it
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helps build muscle strength and mass can help with endurance maintains bone health it can improve
00:23:43.500
cognitive function when you're sleep deprived or jet lag can also maybe help cognitive function as you age
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might help with depression are there any other benefits of creatine we haven't talked about that
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you're excited about yeah i think the big one is that we're starting to see some problems from
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pregnancy all the way across the lifespan especially in females and we'd like to really start looking at
00:24:07.240
young bone and children and adolescents can that improve a coordination development things like that so
00:24:13.000
there's a lot coming down the pipeline it's starting to have some potential beneficial effects on
00:24:18.100
cardiovascular health so it's sort of gone from athletes to pretty much anybody on the planet
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may or may not get a potential benefit just depending on their situation all right so we
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talked about the benefits a lot of benefits to creatine let's talk about supplementing with
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creatine first question is is supplementation even needed or can you get enough creatine from your diet
00:24:37.160
so the correct answer is no you definitely do not need to supplement with creatine unless you're born
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with a creatine deficiency and the validity to that is vegans vegetarians have healthy muscle cells
00:24:49.320
and they're only relying on what they're naturally producing however when you do take a little bit
00:24:55.280
more you can get substantial beneficial effects so the technical answer is no but there are other
00:25:03.100
individuals that would probably argue that it's conditionally essential but i i fall in the other
00:25:08.400
category to be an essential nutrient like an essential amino acid if you don't consume it you would die
00:25:14.420
we're actually producing enough to get by so it's a tough one to answer so if you're looking for
00:25:19.860
optimization you'd probably want to it'd be easier just to supplement yeah and you don't need a lot
00:25:25.220
like most people take creatine for muscle benefits you could probably take as little as three grams a day
00:25:30.600
that's a quarter of a teaspoon and that'll accumulate in your muscles in about 30 days but of course if
00:25:36.140
you're looking for bone and or brain benefits you may need a bit more okay let's talk about dosing
00:25:41.900
if you're going to supplement with creatine i think the typical dose when you buy creatine
00:25:47.360
is they recommend i think it's five grams a day yeah it depends so a lot of the companies will say
00:25:53.360
hey we want you to load creatine which is primarily just for athletes that's 20 grams a day for five to
00:25:59.180
seven days it's an extremely reliable fast rapid strategy to saturate your muscle to get the best
00:26:06.040
benefits out of it the only problem and why i'm really hesitant on recommending the loading phase
00:26:11.480
is that creatine is an osmotic compound so it drags water with it and so when you're taking in that much
00:26:17.280
creatine you're going to take a lot of water inside the cell and a lot of people say oh i gained weight
00:26:22.360
during the first week or i had some bloating or gi tract irritation that kind of logically makes sense
00:26:28.060
but you can take as little as three grams a day you can probably move it up to a really effective
00:26:32.920
dose of five grams a day that five grams a day your muscles should be saturated in about 15 to 20
00:26:38.620
days we don't know if you can saturate the bone or brain but again once your muscles are saturated
00:26:44.380
any excess would go down the toilet or hopefully it's going into other demanding tissues in our lab
00:26:51.020
we use a relative dose based on the size of the person about 0.1 grams per kilogram so if you're 70
00:26:57.060
kilograms you get seven grams a day if you're 100 kilograms you get 10 grams a day and you can divide
00:27:01.680
that up into multiple smaller dosages so for example if you do want to take five grams a day
00:27:07.320
you can take two and a half in the morning two and a half in the evening the timing is is essentially
00:27:12.160
irrelevant it's really up to you i would not recommend going anything less than one gram per
00:27:18.500
serving a classic study showed that one gram just wasn't enough to accumulate in the blood and
00:27:23.540
eventually get into the tissue how much creatine do you take a day i personally take um i take 10 grams a
00:27:30.140
day now for probably the last decade based on a whole body perspective not only muscle and bone
00:27:35.560
but now the brain so muscle just say is about three grams bone anywhere between eight to ten and the
00:27:40.980
brain the best studies show 20 grams so i just simply divided all those dosages by three and i get
00:27:46.920
about 10 grams and i take five grams in the morning and then i actually mix the other five grams in a
00:27:51.880
water bottle and i drink it during my workout and that seems to really be an easy consistent way for
00:27:56.340
me to get it in okay and can you take creatine every day yes you can yeah and i think i've changed
00:28:04.080
my opinion on this primarily due to the brain that you know take it every day because you want some
00:28:09.200
hopefully trickling into your brain after the muscles fall let's talk about the type of creatine
00:28:14.340
to take there are different formulations out there on the market which do you recommend
00:28:20.600
i only recommend monohydrate so i know it's the boring original but it's the one that's been shown
00:28:28.420
in all the studies to be effective and safe all these other marketed forms of creatine first they
00:28:34.840
have to be creatine when it gets through your small intestine if it's not the creatine molecule
00:28:38.860
your cells will not allow it in so then it's useless and all these other things linked to it
00:28:43.440
to me are irrelevant the bioavailability of pure creatine is near 100 percent so if someone you know
00:28:49.940
wants to spend way more money on a fancy bottle go ahead but at the end of it it has to be the
00:28:54.780
creatine molecule and i only recommend and talk about monohydrate okay and that it's pretty affordable
00:29:00.060
i mean i think it's gotten more expensive i've seen the price go up a little bit but overall it
00:29:04.580
creatine is pretty it's pretty affordable it is and you know we're not talking like protein where you
00:29:09.520
need hundreds of grams if you want to start with three grams a day that's great you're probably going
00:29:14.220
to get some benefits down the road another question i have about taking creatine i remember when i was a
00:29:18.900
teenager i read in the muscle mags like if you want to get a better absorption of your creatine
00:29:24.280
you need to take it with a quick absorbing carbohydrate like orange juice is there anything
00:29:28.760
to that yeah there's a lot of good research out of the uk validating that the only problem
00:29:34.120
is that the dose of carbohydrate or high glycemic sugars is so high that most people nowadays won't
00:29:40.120
even go near you know 50 to 100 grams of sugar and luckily for everybody listening if you're not a big
00:29:46.380
fan of simple carbohydrates exercise muscle contractions will stimulate creatine uptake
00:29:51.880
into the muscle really well and that's probably why a lot of people take creatine in close proximity
00:29:57.060
to their workouts take it before during or after blood flow is is upregulated and these doorways that
00:30:02.480
allow creatine are stimulated so it's a great time to take creatine continuing on just dosage does your
00:30:08.900
creatine supplementation need to increase as you get older oh that's an excellent question i'm in the
00:30:15.480
opinion yes it's very similar to the blunt response to protein we've done a meta-analysis showing that
00:30:21.360
our creatine stores are sort of negatively affected in the lower limbs as we get older so my thought is
00:30:27.560
that we need more as we get older to offset some of those age-related declines okay so let's say you
00:30:33.780
take five grams a day as a 30 year old guy maybe when you get to your 60s are you taking 10 grams a day
00:30:41.480
and there's been some studies all the way up to 30 grams showing some beneficial effects that's quite
00:30:46.300
high but you know for me i think you know 10 grams is more than enough on a daily basis unless you had
00:30:53.520
some metabolic disease or other conditions such as caxia or maybe cancer where it was really
00:31:00.300
inflammatory i just don't see why you would need more than that on a daily basis do we know how early
00:31:05.900
we can start taking creatine yeah we so this is a an area of controversy for sure and i got to be
00:31:12.380
careful how i i preface this but there's some really good potential during fetal development and
00:31:18.200
during pregnancy and most people will shake their head and say what did he just say but yes there's
00:31:22.280
good research out of australia now again they're using the rodent model but they have been shown some
00:31:27.000
benefits that creatine during pregnancy for the mother and the fetus has some substantial benefits
00:31:32.260
again decreasing inflammation and oxidative stress uh good researchers in the united states
00:31:37.800
andrew jagham and chad gersick is clearly shown now that creatine is beneficial for children and
00:31:43.080
adolescents um at the recommended dosage is no adverse effects we're still waiting on the blood
00:31:47.980
biomarkers but i'd be very shocked if there was any adverse effects there so it's sort of transcended
00:31:53.460
and now it seems to be something that anybody on the planet can't consider and one of the main reasons
00:31:59.000
is again we're naturally producing this right our body recognizes it and if we don't like it we
00:32:04.480
excrete it down the toilet so we need a lot more research in those younger years but the current
00:32:09.600
body of research suggests it is safe and potentially effective so if you've got a teenage kid who's an
00:32:15.440
athlete and they're like i want to take creatine like you it'd be okay to do that no safety problems
00:32:20.180
there that we know a hundred percent and and if i had a child that young they'd be taking creatine for
00:32:24.740
sure okay does creatine supplementation should it differ whether you're a man or a woman
00:32:29.260
no there's no big sex differences uh when it comes to creatine i think i saw something the other
00:32:35.420
creatine was marketed for females which is just quackery the only thought was that biological
00:32:40.920
female may have smaller muscle so their creatine stores may be at rest already higher so they may not
00:32:47.100
respond as well and there's been a few studies to suggest that females may not improve lean tissue mass
00:32:52.840
at the same rate as males and from a mechanistic standpoint we think for some reason maybe estrogen
00:32:58.780
is involved that females don't experience a decrease in protein breakdown at the same level
00:33:04.520
as males and the only logical reason there is maybe estrogen is involved but we just don't know
00:33:09.740
okay so i think a lot of people there's a lot of people out there might be wary of taking creatine
00:33:14.660
because right they may have heard some things i remember when i first started taking creatine in high
00:33:18.980
school this was in the 90s this was when the um the home run race between mark mcguire and sammy
00:33:24.840
sosa was going on and then mark mcguire said oh yeah i just take creatine i mean he's actually taking
00:33:30.220
steroids yeah and i remember my mom or my dad and one of my parents heard this like you shouldn't take
00:33:36.180
this it's like steroids and you're gonna mess up your liver and your kidneys walk us through like
00:33:40.700
is creatine safe i mean we i think we kind of mentioned it throughout this conversation this research
00:33:45.100
says it's pretty much safe but is there any can creatine damage our kidneys liver etc yeah so we
00:33:52.280
can go through many myths so for one creatine is not a steroid there's been study after study and
00:33:58.200
we've done a two-year study in post-menopausal females looking at long-term high dose creatine
00:34:03.380
on kidney and liver health and there's been no greater adverse effects and that's been replicated
00:34:08.600
around the world so in summary creatine has no adverse effects on liver kidney or even
00:34:14.000
cardiovascular function it does not lead to muscle cramping and if anything it actually decreases
00:34:20.640
it because it super hydrates the muscle and that was another big myth so you know it does not increase
00:34:26.120
fat mass it actually we've shown a few times that it decreases fat mass i think the bloating just do
00:34:32.380
not do the loading phase and start with a really small dose but the big safety profile of creatine has
00:34:37.920
been well established it's probably the safest most effective dietary compound even above
00:34:43.640
caffeine i recommend the dosages that a human can take and it's the most studied like you said
00:34:48.380
there's like over a thousand peer-reviewed studies on creatine let's dig deeper into the the kidney
00:34:53.480
thing because you mentioned earlier that one of the byproducts of creatine is creatinine so this is a
00:35:00.400
marker that your doctors look at to check your kidney function whether your kidneys are you know
00:35:05.240
working the way they're supposed to do and elevated creatinine levels is a sign like oh something's wrong
00:35:11.400
with your kidneys you need to look into this when you take creatine your creatinine levels are going
00:35:15.580
to go up because like you have more creatine so you have more byproduct so how does this not mean
00:35:21.140
your kidneys are messed up yeah it's a false positive almost 99 out of 100 times so when you
00:35:27.720
take supplementation as you mentioned it goes into your demanding cells and when it gets utilized it
00:35:33.600
leaves the cell in the form of a metabolic byproduct called creatinine it's measured on all blood
00:35:39.860
requisition forms the doctor will check off something called creatinine and right below it
00:35:43.840
it has e gfr so that's estimated glomerulation filtration rate they use this to assess the health
00:35:51.600
of the kidney and so think of the kidney as a filter like a brita or a water filter it's filtering
00:35:57.760
things in the blood and what it doesn't like they leave the body so it should be filtering creatinine
00:36:04.320
therefore creatinine levels should not change however when you take supplementation creatinine
00:36:09.860
levels go up the kidney is still fine it's just those levels went up and when you happen to go to
00:36:15.160
your doctor when they measure it they're like whoa why is your creatinine so high and your e gfr so high
00:36:21.340
that means uh sorry your e gfr is lower that means you're not having a filtration through that so one of
00:36:28.080
the biggest things i tell people is that if you're taking creatine supplementation please tell your
00:36:32.560
nephrologist or gp that you're on it typically your creatinine levels in the blood are elevated that
00:36:38.200
does not necessarily mean you have any kidney issues yeah and the other issue too if you take creatine
00:36:44.360
you're also probably lifting weights and strenuous exercise can also raise creatinine levels which can
00:36:52.260
and dietary protein 100 yeah dietary protein and then also something else i've learned if you reduce
00:36:57.720
body fat if you're right have more lean mass your creatinine levels are going to be higher
00:37:02.180
that's right on a relative position that's correct yeah on a relative base so is there another test
00:37:07.440
you can take let's say your doctor freaks out because i've had this happen a few times like
00:37:10.760
your general practitioner are typically not you know they got so much going on they don't have enough
00:37:14.480
time to you know stay on top of the research on nutrition and in physiology so they see this elevated
00:37:21.080
creatinine level and you're like i'm fine they're like no we gotta we gotta send you to a
00:37:25.860
nephrologist is there another test you can take to show that your kidney function is okay and it
00:37:32.100
takes into account that you're supplementing with creatine yeah and there is there's one i believe
00:37:36.820
i'm pronouncing it right it's cystatin or cystatin c it's a new type of test that a lot of individuals
00:37:43.280
can ask their doctor to get and usually when that's done it doesn't consider the estimated error of
00:37:48.620
measurement in the the filtration rate or the amount of creatinine being filtered gotcha and then again
00:37:54.300
to the liver nothing shows that creatine negatively impacts liver function no only at super physiological
00:38:00.840
doses in the rodent model have we seen this but in humans no okay all right so overall creatine seems
00:38:06.680
to be safe it's not going to damage your kidneys but i have heard that if you have some kidney issues
00:38:12.460
maybe you got to talk to your doctor or nephrologist before you start supplementing with creatine
00:38:16.920
yeah a hundred percent since those organs are involved in the synthesis and or metabolism creatine
00:38:23.180
we always recommend that they consult their doctor before they're taking not not only creatine but any
00:38:28.840
other dietary supplement absolutely right and then bloating if you want to manage that just don't do the
00:38:34.220
loading phase does your body adapt if you take the lower dose every day does your body eventually just
00:38:39.640
adapt and you get back to normal you're not going to experience any of that water retention
00:38:42.940
yeah and that actually happens after the loading phase as well our body does adapt and the funny
00:38:48.800
thing is when we measure someone's weight before the study and after usually it's unchanged maybe
00:38:53.860
muscle mass went up and fat mass came down so typically it does subside after about seven to ten days
00:38:58.760
okay another thing people might have heard and i've seen this on the internet is that creatine can
00:39:04.720
increase dht levels yeah which you know increased dht levels can cause hair loss so for those who
00:39:12.120
aren't familiar what is dht and its connection to hair loss and where did this idea that creatine
00:39:17.080
plays a role in that come from yeah it's mind-boggling that this one study in south african rugby players
00:39:23.600
and dht is dihydroxy testosterone is derivative of testosterone linked to hair thinning or hair
00:39:30.940
follicle loss but this study simply looked at the loading phase for seven days in rugby players and the
00:39:37.700
hormone did go up compared to placebo but it was still within the physiological range like when you
00:39:42.640
go to the doctor and measure your blood glucose there's a low end and a high end and this hormone did
00:39:47.640
improve or increase in response to creatine but again it was in the physiological range they did not
00:39:53.780
measure hair thinning hair follicle loss no study has i believe there is one study now being done in the
00:40:00.220
south pacific starting to look at hair cross-sectional area but at the end of the day there's no evidence
00:40:05.280
to suggest that creatine has been linked directly to hair thinning or hair follicle loss i've assessed
00:40:11.240
over a thousand people and not one time as someone came to me and said hey darren whatever you're giving
00:40:16.000
me is causing my hair to fall out that's a subjective answer but again we have no empirical evidence to
00:40:22.200
suggest that it increases hair follicle loss or thinning okay so sounds like creatine pretty dang safe
00:40:27.920
from what we know so far absolutely and i mean we've looked at some studies two to five years in
00:40:34.000
duration at higher dosages and we're just not seeing any evidence that has greater adverse effects than
00:40:39.440
placebo that's good it's five that's a long-term study so that's yes it is yeah they're hard to do
00:40:44.420
um but uh we we did a two-year one which took almost a decade to finish um so kudos to those researchers who
00:40:51.080
can do these really long-term studies especially in humans who have a lot of things going on in their
00:40:54.880
life to stay in the study all right and so we've covered a lot of great stuff so i think you know
00:40:59.340
you've you've been interested about creatine supplementation we gave you some things to check
00:41:03.520
out the dosage creatine monohydrate and you're going to be good and you mentioned that where
00:41:09.500
research is going now is what creatine can do for young people right is that where you're kind of
00:41:14.720
yeah almost about anybody across their lifespan where you know just think of uh females we'd love
00:41:20.240
to know the effects during the premenopausal stages during the perimenopausal stages we just don't
00:41:25.380
know much there then of course postmenopausal stages and then look at young males as we're
00:41:30.160
going through the peak testosterone ages during the pre-andropause and then we get into old age
00:41:35.380
what about frailty and these you know your grandparents and that so i think it's something
00:41:40.260
in combination again with exercise i i use this analogy but like you know exercise is the cake
00:41:46.240
protein is the nice icing and creatine might be the sprinkles on top that allow you to eat it a little
00:41:51.180
bit better but at the end of it supplements give a small effect exercise has to be the driving force
00:41:57.760
behind anything from a healthy longevity perspective fantastic well darren this has been a great
00:42:01.880
conversation where can people go to learn more about your work yeah i think nowadays on instagram
00:42:06.420
at dr darren kando i try to produce and promote a lot of things not only creatine related but exercise
00:42:11.560
and health related so uh at dr darren kando on instagram fantastic well darren kando thanks for time
00:42:16.460
it's been a pleasure great thank you so much for having me my guest day was darren kando he's an
00:42:21.740
expert on creatine you can find him on instagram at dr darren kando also check out our show notes at
00:42:26.520
aom.is slash creatine where you find links to resources we delve deeper into this topic
00:42:30.440
well that wraps up another edition of the aom podcast make sure to check out our website at
00:42:41.840
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00:42:45.560
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00:43:00.040
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