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