Show Notes

Creatine is the most researched performance supplement in human history, with over 500 peer-reviewed studies, yet most people are taking the wrong dose.

In this solo episode of The Dr Kumar Discovery, Dr. Ravi Kumar takes a deep dive into creatine, from its discovery in a French laboratory in 1832 to cutting-edge research on its role in brain health, methylation, and even Alzheimer’s disease. This episode goes far beyond the typical gym advice and explores why creatine is a foundational molecule for cellular energy in every tissue of your body, and why a one-size-fits-all dosing approach may be leaving significant benefits on the table.

In this episode, you will discover:

• The fascinating history of creatine, from its isolation in a French lab in 1832 to fueling 80% of athletes at the 1996 Olympics
• How the phosphocreatine shuttle works as a molecular energy highway, delivering ATP up to a thousand times faster than mitochondria alone
• Why creatine synthesis consumes 50 to 75% of your body’s methylation capacity, and how supplementation frees up methyl groups for DNA repair, neurotransmitter production, and detoxification
• The emerging science on creatine and brain health, including research on sleep deprivation, hypoxia, depression, and a promising 2025 Alzheimer’s pilot trial
• Why vegetarians and vegans get zero creatine from food, and why even most omnivores fall short of optimal intake
• A head-to-head comparison of creatine forms: monohydrate vs. hydrochloride, ethyl ester, buffered, and liquid
• The evidence behind common safety concerns about kidneys, dehydration, and hair loss
• A weight-based dosing strategy (0.1 g per kg body weight) that may be smarter than the one-size-fits-all 5 grams per day

Key Takeaways

• Creatine is foundational to energy production in every cell, not just muscle. Your brain, heart, and bones all benefit
• Supplementing with creatine offloads your body’s single largest methylation burden, which is especially important for people with MTHFR variants
• For brain benefits, you need higher doses (20 g/day loading) or longer supplementation because creatine crosses the blood-brain barrier slowly
• Dose by body weight (0.1 g per kg per day) rather than defaulting to 5 grams. A 60 kg woman and a 100 kg man have very different needs
• Stick with creatine monohydrate. It is 99% bioavailable, the most studied, and the cheapest
• The safety data is extensive: up to 30 g/day for five years with no adverse effects in healthy people
• Take it daily, consistently. Do not cycle on and off

Transcript

[00:00 –> 00:23] Dr. Ravi Kumar: On this episode of the Dr. Kumar discovery, creatine has evolved way beyond its reputation as just a gym supplement. Most athletes know that creatine is highly effective at gaining an edge in any type of physical performance. Creatine has one of the most impressive safety profiles of any supplement, but still it’s surrounded by myths and misconceptions.

[00:23 –> 00:42] Dr. Ravi Kumar: Why would a 60 kilogram woman and a hundred kilogram man have the same creatine requirements? They should have dramatically different requirements, which would be realized by weight-based dosing. If you have knowledge of how it works and what you can potentially do with it, you become empowered to live a better and healthier life.

[00:42 –> 01:06] Dr. Ravi Kumar: My name is Dr. Ravi Kumar. I’m a neurosurgeon in search of the causes of human illness and the solutions that help us heal and thrive. I want you to join me on a journey of discovery as I turn over every stone in search of the roots of disease and the mysteries of our resilience. The human body is a mysterious and miraculous machine with an amazing ability to self-heal.

[01:06 –> 01:33] Dr. Ravi Kumar: Let us question everything and discover our true potentials. Welcome to the Dr. Kumar discovery. Welcome to the Dr. Kumar discovery. My name is Dr. Ravi Kumar. I’m a board certified neurosurgeon and assistant professor at UNC. On today’s episode, we’re gonna do a deep dive into one of the most well-researched supplements in human history.

[01:33 –> 01:59] Dr. Ravi Kumar: Creatine. This little molecule is not just a supplement. It’s made by the human body and is foundational to energy production and utilization. In fact, every cell in your body needs creatine and is dependent on creatine for efficient operation. So whether you’re an athlete looking to maximize performance, someone interested in cognitive enhancement, or just curious about the science behind creatine and how it works in your body.

[01:59 –> 02:18] Dr. Ravi Kumar: This episode is going to fill your knowledge cup up to the brim. I’ll take you through everything from the molecular mechanisms to the practical applications that could genuinely benefit your life. So my guess is that most of you have heard of creatine. It’s all over the place from the grocery store to online retailer.

[02:18 –> 02:40] Dr. Ravi Kumar: And that’s because most athletes know that creatine is highly effective at gaining an edge in any type of physical performance. In fact, according to the International Society of Sports Nutrition, Creatine Monohydrate is the most effective ergogenic, that means performance enhancing, nutritional supplement currently available to athletes.

[02:40 –> 03:02] Dr. Ravi Kumar: That’s a very bold claim, but when you look at the research with over 500 peer reviewed publications showing significant benefit, you realize that the evidence for Creatine’s role in human performance is overwhelming. But here is what gets me excited the most about creatine. Its potential benefits go far beyond just athletic performance.

[03:02 –> 03:24] Dr. Ravi Kumar: Really any process that requires energy utilization in your body can be optimized by creatine. So we’ll explore how creatine affects your brain, your methylation pathways, potentially your mood and mental health, your cellular energy production, and we’ll talk about some dosing strategies that almost nobody is talking about in mainstream fitness circles.

[03:24 –> 03:40] Dr. Ravi Kumar: But before we begin, I just want to give you a couple disclaimers. All this information I’m giving you is for informational purposes only, and it’s meant to improve your base of knowledge so you can make better decisions about your health and wellness and about your family’s health and wellness.

[03:40 –> 04:01] Dr. Ravi Kumar: Honestly, creatine, which we’re talking about today, can be extraordinarily effective at improving your biology, and if you have knowledge of how it works and what you can potentially do with it, you become empowered to live a better and healthier life. That is my goal. I also wanna mention that this podcast is separate from my role as assistant professor at UNC.

[04:01 –> 04:03] Dr. Ravi Kumar: Okay, let’s start at the beginning.

[04:03 –> 04:25] Dr. Ravi Kumar: In 1832, a French chemist named Michel Eugene Chevreul was working in his laboratory, extracting compounds from meat. He knows there’s something unknown in meat that promotes overall vitality. He ends up isolating a new organic compound that he’s never seen before. He names it creatine from the Greek word creas, which means meat.

[04:25 –> 04:48] Dr. Ravi Kumar: Then in 1847 German chemist Justus von Liebig made a curious observation. Wild animals had significantly more creatine in their muscles than domesticated animals. His conclusion: the level of physical activity influences the amount of creatine in muscle tissue. Von Liebig was also a savvy businessman. He produced and sold Liebig’s meat extract.

[04:48 –> 05:08] Dr. Ravi Kumar: Essentially a concentrated meat broth containing about 8% creatine. This was arguably the first commercially available creatine supplement over 150 years before modern creatine products hit the market. In 1912, researchers at Harvard University found that ingesting creatine could dramatically boost muscle creatine content.

[05:08 –> 05:28] Dr. Ravi Kumar: Then in 1926, a researcher named Alfred Chanutin conducted what may have been the first systematic human creatine supplementation trial. 10 grams per day orally for one week showed increased muscle creatine storage per his findings. But bringing this to the public was difficult because there was a limitation at the time.

[05:28 –> 05:47] Dr. Ravi Kumar: Creatine was expensive to extract from meat. It wasn’t until the 1950s that synthetic creatine could be produced in laboratories, and even then, widespread adoption had to wait for decades. Then in 1992, a man named Roger Harris brought commercially available creatine supplementation to the forefront.

[05:47 –> 06:07] Dr. Ravi Kumar: When he showed that creatine could significantly improve human performance. That year at the Barcelona Olympics, British Sprinter Linford Christie won gold in the hundred meters and subsequently revealed that he had been using creatine. By the 1996 Atlanta Olympics, an estimated 80% of athletes were using creatine.

[06:07 –> 06:26] Dr. Ravi Kumar: The supplement had gone mainstream. So what does creatine do to the body that led to most Olympic athletes using it for achieving maximal performance? To understand this, we have to dive into the biochemistry and see what is happening at the cellular level. So let’s start with this basic fact, which I already mentioned.

[06:26 –> 06:54] Dr. Ravi Kumar: Your body makes creatine naturally. The process involves three amino acids: arginine, glycine, and methionine. And here’s how it happens. It all starts in the kidney where an enzyme called AGAT creates a molecule called GAA from arginine and glycine. This molecule, GAA, then travels to the liver where the enzyme GAMT adds a methyl group from S-adenosylmethionine, also called SAM, and this step creates creatine.

[06:54 –> 07:13] Dr. Ravi Kumar: Now you don’t have to remember any of those chemical names, but what I do want you to remember is that to form creatine your body needs to perform a methylation reaction. The same kind of methylation that’s involved in folate synthesis, which is the same methylation reaction that runs slowly with people who have MTHFR mutations.

[07:13 –> 07:33] Dr. Ravi Kumar: So tuck that fact into your back pocket for now. We’re gonna come back to it later. Okay. So the body synthesizes approximately one to two grams of creatine per day, but you need about three to five grams per day for basic functioning. The remaining creatine, the other two to three grams, typically comes from meat, which contains about three to 10 grams of creatine per kilogram.

[07:33 –> 07:53] Dr. Ravi Kumar: And very importantly, plant-based foods do not have any creatine in them. That is very important to know if you’re vegan or vegetarian, and we’ll talk more about that later. So once creatine is made or consumed, it circulates through your bloodstream before entering your cells through a sodium dependent creatine transporter.

[07:53 –> 08:19] Dr. Ravi Kumar: Once inside the cell, an enzyme called creatine kinase or CK phosphorylates it to create phosphocreatine. Phosphorylation is a very important enzymatic reaction where a phosphorus group is attached to another molecule, and that’s important because that little phosphate group that is attached to creatine is a glowing hot ember of energy and creatine holds onto it until its energy is ready to be utilized.

[08:19 –> 08:42] Dr. Ravi Kumar: So it stands to reason that the majority of creatine will be transported to cells with the highest energy demands. And that’s exactly what we see. About 95% of your body’s creatine is stored in skeletal muscles. Of that roughly 60 to 70% exists as phosphocreatine, which is the creatine molecule with the energetic little phosphorus group attached to it.

[08:42 –> 09:10] Dr. Ravi Kumar: So here’s what phosphocreatine does. Our main energy molecule is called ATP, which stands for adenosine triphosphate, tri meaning three. When the energy from ATP is used by an enzyme, it loses one phosphorus group and becomes ADP, adenosine diphosphate, di meaning two. So it went from having three phosphates to having two, and with this loss, it gave up some energy.

[09:10 –> 09:31] Dr. Ravi Kumar: Now before ADP can be used again for energy such as muscular contraction or neurotransmission in your brain, it needs to be recharged with another phosphate group. That’s where phosphocreatine steps in. It gives up its red hot little phosphate group and transfers it over to ADP to make ATP again.

[09:31 –> 09:58] Dr. Ravi Kumar: And ATP is ready to fuel another molecular reaction. So when you perform high intensity exercise, your muscles rapidly consume ATP. The phosphocreatine system provides the fastest mechanism for regenerating ATP, and it’s able to do this through what science calls the phosphocreatine shuttle. This is a very important concept to understand because it’ll help us understand how creatine is rapidly shuttling energy within our cells.

[09:58 –> 10:19] Dr. Ravi Kumar: So remember I mentioned creatine kinase, which is also called CK. That was the enzyme that phosphorylates creatine as soon as it enters the cell. Well, CK can actually run that phosphorylation reaction in both directions. When there’s tons of ATP, CK transfers a phosphate group onto creatine, storing that energy as phosphocreatine.

[10:19 –> 10:45] Dr. Ravi Kumar: When ATP gets used up and ADP accumulates, CK reverses and transfers the phosphorus group on phosphocreatine back to ADP, to regenerate ATP. The direction that CK works simply depends on the local conditions at the time. Now, here’s where it gets really elegant. Your cells have different versions of creatine kinase strategically positioned in different locations.

[10:45 –> 11:08] Dr. Ravi Kumar: There’s mitochondrial CK sitting right at the exit door where freshly made ATP leaves the mitochondria, and there’s muscle type CK anchored right at the contractile machinery where ATP actually gets consumed. So now imagine the phosphocreatine shuttle like a relay race. Inside the mitochondria, oxidative phosphorylation is churning out ATP continuously.

[11:08 –> 11:32] Dr. Ravi Kumar: The mitochondrial CK grabs that ATP and immediately loads that phosphate onto creatine, creating phosphocreatine. That phosphocreatine then diffuses through the cell towards the muscle fiber. And here’s the key: it diffuses way faster than ATP can. Meaning phosphocreatine can carry that energy across the cell much faster than sending ATP itself.

[11:32 –> 11:55] Dr. Ravi Kumar: Now at the muscle fiber during contraction, ATP is being burned at an enormous rate. ADP accumulates rapidly. The muscle type CK sitting right there instantly regenerates ATP from phosphocreatine molecules that are sprinting over from the mitochondria. That free creatine then sprints back towards the mitochondria, ready to pick up another phosphate group.

[11:55 –> 12:18] Dr. Ravi Kumar: This shuttle operates about a thousand times faster than oxidative phosphorylation in the mitochondria, and it acts like a battery that buffers the fluctuations in energy use and energy creation. A good example of this is that during intense exercise, phosphocreatine in the cell can drop by 30 to 50% while ATP barely fluctuates, maybe about 10%.

[12:18 –> 12:39] Dr. Ravi Kumar: So phosphocreatine is buffering that drop in ATP. The whole process solves a fundamental problem: ATP doesn’t travel well even across the microscopic distances between your mitochondria and your muscle cells. So the phosphocreatine shuttle essentially becomes a molecular energy highway with creatine kinase enzymes acting as relay stations at both ends.

[12:39 –> 12:54] Dr. Ravi Kumar: So that was a lot I know, and don’t worry about the details, just know this. Creatine is super important in energy production. It’s actually essential to the transport of energy within your cells. So knowing all that, the next logical question is:

[12:54 –> 12:59] Dr. Ravi Kumar: If we supplement with creatine, what would the actual benefits be?

[12:59 –> 13:19] Dr. Ravi Kumar: Hey guys, I need a quick favor. If you’re getting value from this show, would you please take 30 seconds to rate and review us on Apple Podcasts? I know it seems like nothing, but it genuinely changes how many people the algorithm puts this show in front of. And if an episode hits home for you, send it to someone who you think needs to hear it.

[13:19 –> 13:30] Dr. Ravi Kumar: I’m doing this to cut through the noise and bring you clear, honest information on health topics that actually matter to all of us. So please help me get the show to more people who need it. Cheers.

[13:30 –> 13:57] Dr. Ravi Kumar: Let’s start with strength and physical performance because this is the most studied and noticeable benefit. A 2024 meta-analysis found that creatine plus resistance training increased upper body one rep max by about 10 pounds more than training alone without creatine. For squats, trained individuals added about 14 pounds more to their max than those on placebo. And in older adults, 57 to 70 years old, one study found creatine literally doubled their strength gains compared to training alone.

[13:57 –> 14:21] Dr. Ravi Kumar: Looking at the bigger picture, creatine users see about 8% greater improvement in their one rep max, and about 14% greater improvement in muscular endurance. For lean mass, multiple meta-analyses consistently show you’ll gain roughly two to three pounds more muscle when taking creatine and training than training alone.

[14:21 –> 14:41] Dr. Ravi Kumar: Interestingly, creatine users also tend to lose a bit more fat, around a pound and a half on average. So what does this actually feel like in the gym? You’ll squeeze out one to three extra reps on working sets, especially in that eight to 12 rep range. You’ll recover faster between sets, maintaining intensity instead of fading. As the workout goes on, over weeks and months, that adds up to significantly more total work performed, more weight moved, more volume accumulated.

[14:41 –> 15:02] Dr. Ravi Kumar: You might add five to 10 pounds to your lifts within the first month. And these strength gains continue to improve. Studies show creatine users gain strength about five to 15% faster than placebo over the course of a training program. And an extra perk for vanity is that you’ll notice a fuller look to your muscles from the increased cellular hydration.

[15:02 –> 15:19] Dr. Ravi Kumar: So creatine definitely improves physical performance. What if you’re not an athlete? Are there any benefits to creatine supplementation beyond sports? And the answer to this is definitely yes.

[15:19 –> 15:40] Dr. Ravi Kumar: Let’s start with how creatine can significantly offload your methylation burden. For anyone unfamiliar with methylation, it’s essentially a chemical reaction that transfers a small molecule called a methyl group onto compounds to activate or deactivate them. Your body uses this constantly for everything from building neurotransmitters to regulating genes to detoxification.

[15:40 –> 16:00] Dr. Ravi Kumar: And many of us don’t methylate efficiently due to genetic variants like MTHFR polymorphisms, which mean many basic biological processes run slower than they should. So why bring this up? Because creatine synthesis turns out to be the single biggest consumer of your body’s methylation capacity.

[16:00 –> 16:21] Dr. Ravi Kumar: Get this: the methylation reaction that creates creatine consumes more methyl groups than all other methylation reactions in your body combined. We’re talking 50 to 75% of your body’s methyl group budget going towards making creatine. So here’s where supplementation with creatine gets interesting from a metabolic perspective.

[16:21 –> 16:44] Dr. Ravi Kumar: When you take creatine, you’re providing preformed creatine directly to your cells. Your body recognizes this and downregulates its own creatine production. Less endogenous synthesis means less demand for those precious methyl groups, potentially lowering homocysteine production and more methylation capacity available for other critical functions like DNA methylation and neurotransmitter synthesis.

[16:44 –> 17:03] Dr. Ravi Kumar: So why does this matter? Elevated homocysteine, which is a marker of slow methylation, is linked to cardiovascular disease risk and cognitive decline. So while the human data is still developing, the theoretical framework is compelling, especially for people with genetic variants affecting methylation like MTHFR polymorphisms.

[17:03 –> 17:21] Dr. Ravi Kumar: For these people, of whom I am one of them, creatine supplementation is offloading your methylation burden more than anything else we can do, and it essentially allows the rest of your body to function more efficiently. Okay, so the next area of creatine biology that really excites me is brain health.

[17:21 –> 17:41] Dr. Ravi Kumar: This is one of the most exciting frontiers in creatine research, and it challenges the traditional idea that creatine is just a muscle supplement. Your brain is about 2% of your body weight, but it consumes roughly 20% of your total energy. It uses the same phosphocreatine system as muscle. But here’s the problem.

[17:41 –> 18:00] Dr. Ravi Kumar: Unlike muscle, the brain actually makes most of its own creatine. Why? Because creatine crosses the blood brain barrier very slowly. That creates a bottleneck of creatine transport into the brain. So if the brain makes its own creatine, and creatine crosses the blood-brain barrier slowly, why does supplementation even help?

[18:00 –> 18:20] Dr. Ravi Kumar: Well, it’s because endogenous synthesis has its limits. When the brain faces metabolic stress, like sleep deprivation, hypoxia, intense cognitive demand or aging, its internal production may not be able to keep pace with its creatine needs. That’s when extra creatine from supplementation can make a big difference.

[18:20 –> 18:38] Dr. Ravi Kumar: Despite its slow entry into the brain, it just requires higher doses and longer duration than muscle loading. And the research backs this up. Sleep deprived adults given a high dose creatine protocol: brain creatine increased about 9%, and cognitive performance was preserved despite sleep deprivation.

[18:38 –> 19:02] Dr. Ravi Kumar: Studies on hypoxia where patients’ brains are stressed in low oxygen environments show creatine helps maintain attention and even boost motor function by roughly 70% compared to placebo. For depression, we’re seeing promising results as well. One trial in adolescent females with treatment resistant depression found that adding just two to four grams of creatine daily significantly improved symptoms.

[19:02 –> 19:23] Dr. Ravi Kumar: A recent pilot study combining creatine with cognitive behavioral therapy showed markedly greater improvement in depression than therapy alone. And perhaps the most exciting data comes from Alzheimer’s research. A 2025 pilot trial gave 20 patients with diagnosed Alzheimer’s disease 20 grams of creatine daily for eight weeks.

[19:23 –> 19:47] Dr. Ravi Kumar: Brain creatine levels increased 11%, and there were significant improvements across multiple domains like cognition, working memory, attention, and comprehension. This was a small, uncontrolled trial, so we need larger studies, but the rationale is compelling because, one, we know that impaired brain energy metabolism is a hallmark of Alzheimer’s that appears before symptoms ever begin.

[19:47 –> 20:00] Dr. Ravi Kumar: And two, we know that creatine is a powerful potentiator of energy utilization in the brain. Okay, so those are the potential benefits of creatine that we know of. And you might be wondering, if creatine is so important:

[20:00 –> 20:07] Dr. Ravi Kumar: Why would we need a supplement? Our ancestors didn’t have access to any white powder in tubs, so why should we need it?

[20:07 –> 20:27] Dr. Ravi Kumar: Well, creatine is what researchers call a carni-nutrient. It’s only found in animal foods, primarily muscle meat. Human intake of creatine was probably much higher in paleolithic times than it is today. When you look at hunter-gatherer populations, they were getting roughly 65% of their calories from animal foods.

[20:27 –> 20:48] Dr. Ravi Kumar: And here’s the modern reality. The average daily intake of creatine across the US population is only about 0.7 grams per day. Meanwhile, a 70 kilogram person needs at least two grams per day of creatine in their diet just to maintain sufficient creatine stores. A typical omnivorous diet in the US provides only about half of that.

[20:48 –> 21:15] Dr. Ravi Kumar: And if you’re eating less meat or you’re vegetarian or vegan, you’re getting even less, you’re likely deficient. So creatine supplementation isn’t about taking some artificial substance our body doesn’t recognize. It’s about restoring intake levels closer to what humans consumed throughout our evolutionary history, before agriculture shifted our diet towards grains and away from animal foods that provide this nutrient naturally.

[21:15 –> 21:35] Dr. Ravi Kumar: Hey guys, there are currently 8 billion people on Earth, and somewhere out there someone has already solved the health problem that you are struggling with. Maybe it took them years of trial and error, or maybe they stumbled on it by accident, but they did figure it out. The problem is there’s no way for their discovery to reach you.

[21:35 –> 21:55] Dr. Ravi Kumar: Doctors don’t have time for deep investigation. Research moves slowly and that solution, the one that could change your life, stays lost in the noise. I’m building something to fix that. It’s called ShareMyTrial.com. It’s a platform where people share what worked for them and the community validates and rates those solutions.

[21:55 –> 22:11] Dr. Ravi Kumar: So the best ones rise to the top. Right now I need beta testers. If you’re interested, go to ShareMyTrial.com and sign up. Help me build a place where real health solutions find people who need them.

[22:11 –> 22:16] Dr. Ravi Kumar: So if we’re gonna supplement, we need to ask: is synthetically produced creatine safe to consume?

[22:16 –> 22:38] Dr. Ravi Kumar: With all supplementation, it’s vital that you ask this question. You need to know if it’s safe to put in your body in the short term and the long term. And luckily, creatine has one of the most impressive safety profiles of any supplement, but still it’s surrounded by myths and misconceptions. So let’s talk about them. The kidney concern comes up constantly and the evidence has been overwhelming.

[22:38 –> 23:02] Dr. Ravi Kumar: Long-term studies up to 10 grams daily for five years show no detrimental effects on kidney function. A 2025 meta-analysis confirmed this. Creatine does modestly raise serum creatinine on blood tests, but there’s no impairment in actual kidney filtration. So here’s how creatine and creatinine, which is how doctors measure kidney function on a blood test, are connected.

[23:02 –> 23:19] Dr. Ravi Kumar: Creatine naturally converts to creatinine as a waste product. So if you’re taking creatine and your blood test shows elevated creatinine, that’s not necessarily a sign of kidney damage, but rather a reflection of your larger creatine pool. That’s why bigger, more muscular guys tend to have higher creatinine levels.

[23:19 –> 23:41] Dr. Ravi Kumar: The bottom line is creatine itself is not harmful to the kidneys. That said, if you have preexisting kidney issues, talk to your doctor first so you can both understand any changes in your serum creatinine when you start supplementing with creatine. Liver function is another common worry. Multiple long-term studies show no adverse effects on liver enzymes.

[23:41 –> 24:07] Dr. Ravi Kumar: Dehydration and cramping is another big myth with creatine. And this one is ironic because controlled studies show the opposite. Creatine users actually experience less cramping and fewer muscle strains than non-users. Hair loss is a common concern as well. This one stems from a single 2009 study showing creatine raised DHT, which is responsible for male pattern balding, but no followup study has ever replicated that finding.

[24:07 –> 24:32] Dr. Ravi Kumar: And no study has ever shown creatine actually causes hair loss. The bottom line from the International Society of Sports Nutrition is that supplementation up to 30 grams daily for five years has been shown safe and well tolerated in healthy people. So now that you know how creatine works and what it can do for you and its safety profile, the next question to ask is how should you take it?

[24:32 –> 24:38] Dr. Ravi Kumar: The answer to that question has two parts. First, you need to know the type of creatine to take and then how much to take.

[24:38 –> 24:50] Dr. Ravi Kumar: Let’s first talk about the types of creatine. The supplement industry has created dozens of creatine variants, and they each claim to be superior, but in my opinion, and based on robust evidence, creatine monohydrate remains the gold standard.

[24:50 –> 25:12] Dr. Ravi Kumar: It’s nearly 99% bioavailable, doesn’t degrade during normal digestion, has decades of safety data and costs the least. The International Society of Sports Nutrition explicitly states it’s the most effective form of creatine. Full stop. But what about creatine hydrochloride?

[25:12 –> 25:35] Dr. Ravi Kumar: It’s heavily advertised and the marketing says it has better solubility, lower doses are needed, and it causes less bloating. Well, it does dissolve in water more easily. That part is true. But randomized control trials comparing creatine hydrochloride to creatine monohydrate at matched doses showed no significant difference in muscle creatine accumulation, performance, or side effects.

[25:35 –> 26:01] Dr. Ravi Kumar: So in my mind, when you buy creatine hydrochloride, you may be paying more for equivalent results compared to creatine monohydrate. Now there’s another form called creatine ethyl ester, which is actually one to avoid. Despite claims of superior absorption, a rigorous study found it resulted in lower serum creatine, lower muscle creatine accumulation, and higher creatinine levels suggesting it degrades into waste product before your muscles can use it.

[26:01 –> 26:22] Dr. Ravi Kumar: It’s objectively worse than creatine monohydrate. Buffered creatine, sold as Kre-Alkalyn, claims pH correction for better stability and potency. A 2012 study directly compared it to creatine monohydrate over 28 days in weightlifters. And there were no significant differences in muscle creatine content, training adaptations, or side effects.

[26:22 –> 26:46] Dr. Ravi Kumar: And what about liquid creatine? Avoid it entirely. Creatine degrades to creatinine when suspended in aqueous solution over time, so you’ll potentially be taking an ineffective supplement. The bottom line: stick with creatine monohydrate. Look for third party tested products, or the Creapure designation, which indicates a standard for high purity manufacturing. If creatine monohydrate causes stomach upset, you can usually get around this by trying micronized versions, taking it with food, splitting it into smaller doses, and staying well hydrated.

[26:46 –> 26:58] Dr. Ravi Kumar: Okay, now that you know to take creatine monohydrate, let’s talk about dosing.

[26:58 –> 27:10] Dr. Ravi Kumar: The classic protocol from the 1990s is a loading phase of 20 grams daily, split into four doses each day for five to seven days, then dropping to three to five grams for maintenance.

[27:10 –> 27:30] Dr. Ravi Kumar: This can increase muscle creatine by 20 to 40% within a week. But here’s the thing, you don’t actually need to load. Taking three to five grams daily will get you to the same saturation point. It just takes about four weeks instead of one week. For many people, this gradual approach avoids GI discomfort that can come with high loading doses.

[27:30 –> 27:52] Dr. Ravi Kumar: Now, here’s where it gets interesting. Dr. Darren Candow, one of the world’s leading creatine researchers, argues that conventional five gram doses per day may be insufficient for optimal benefits beyond muscle. For muscle alone, five grams daily works well for most adults. But for bone health, evidence suggests that you may need at least eight grams daily. And this is one thing I didn’t mention earlier.

[27:52 –> 28:12] Dr. Ravi Kumar: Creatine appears to work synergistically with resistance training to support bone remodeling, which leads to stronger bones. And also for brain benefits, research indicates you need either 20 grams or more daily for at least a week, or four plus grams daily for several months to meaningfully increase brain creatine levels.

[28:12 –> 28:39] Dr. Ravi Kumar: In that Alzheimer’s pilot study I mentioned, they dosed those elderly patients with 20 grams daily for eight weeks. Remember, the blood brain barrier limits creatine uptake. That’s why higher supplementation levels are needed for meaningful increases in brain creatine levels. And when talking about these high dosing levels, remember the ISSN position confirms that up to 30 grams daily for five years has been studied without problems.

[28:39 –> 29:02] Dr. Ravi Kumar: Clinical populations have taken even higher doses for years without significant adverse effects. That doesn’t mean you need to pound back the creatine every day. Here’s a practical approach that I really like. If you want to prioritize brain benefits, load with 20 grams daily for one week, then transition to body weight based dosing, which is roughly 0.1 grams per kilogram daily.

[29:02 –> 29:20] Dr. Ravi Kumar: Honestly, this makes a lot of sense to me. Why would a 60 kilogram woman and a hundred kilogram man have the same creatine requirements? They should have dramatically different requirements, which would be realized by weight-based dosing. For bigger guys, this type of dosing will land you much higher than the standard five grams daily.

[29:20 –> 29:44] Dr. Ravi Kumar: For petite women, they might land south of five grams. For example, I weigh 80 kilos, so I take eight grams of creatine daily. The bottom line is five grams daily is well supported for muscle and general health, but weight-based dosing at 0.1 grams per kilo per day may be more accurate. Older adults with Alzheimer’s may need higher doses or longer duration to realize maximal benefit.

[29:44 –> 29:54] Dr. Ravi Kumar: This is something you can definitely discuss with your doctor. And the last thing to mention is that consistency matters. Take it daily and don’t miss a dose. This should be part of your daily routine.

[29:54 –> 30:02] Dr. Ravi Kumar: So let me bring this all together. What we’ve learned is that creatine has evolved way beyond its reputation as just the gym supplement.

[30:02 –> 30:22] Dr. Ravi Kumar: We’re now looking at over 500 peer reviewed studies spanning muscle performance, brain health, bone integrity and even mental health. Multiple international organizations have weighed in with position stands and the FDA recognizes it as safe. The evidence base is genuinely exceptional. At its core, creatine works by supporting the phosphocreatine shuttle, your body’s system for delivering rapid energy to tissues with high fluctuating demands.

[30:22 –> 30:43] Dr. Ravi Kumar: We’re talking about muscle, your brain, your heart. These are the tissues that need quick bursts of ATP. And creatine keeps that system running smoothly. And then don’t forget about my favorite part of creatine biology that doesn’t get enough attention. By supplementing with creatine, you’re potentially sparing methyl groups for other critical reactions throughout your body.

[30:43 –> 31:04] Dr. Ravi Kumar: That methylation connection is underappreciated, but could be super important. Now when it comes to choosing a form, stick with creatine monohydrate all the way. The fancier alternatives sound appealing, but they lack the evidence and they’ll cost way more. If creatine monohydrate bothers your stomach, try the micronized version, split your dose throughout the day, or take it with food and stay really well hydrated.

[31:04 –> 31:29] Dr. Ravi Kumar: The dosing is actually more nuanced than most people realize. The standard five grams daily works well for muscle benefits, but weight-based dosing around 0.1 grams per kilogram per day may be more appropriate, especially if you’re looking at brain benefits, bone health, or if you’re an older adult.

[31:29 –> 31:49] Dr. Ravi Kumar: Lastly, the safety profile is remarkable. Decades of research show no harmful effects in healthy people at higher than recommended doses. The kidney concerns, the dehydration fears, the hair loss worries: none of them hold up when you actually look at the data. So here’s my take. There are very few people who wouldn’t benefit from creatine supplementation.

[31:49 –> 32:13] Dr. Ravi Kumar: If you’re interested in optimizing your health, this is something worth considering as part of your daily routine. The benefits are substantial, the risks are negligible, and the evidence is very solid. So there you have it, folks. I really enjoyed researching this episode and it reinforced my own understanding of how creatine works in the body, and my hope is that I’ve given you something practical that you can use in your daily life.

[32:13 –> 32:22] Dr. Ravi Kumar: Until next time, stay curious, stay skeptical, and stay healthy. Cheers.