Stop Taking 5g of Creatine: Here’s Why

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 OlympicsHow the phosphocreatine shuttle works as a molecular energy highway, delivering ATP up to a thousand times faster than mitochondria aloneWhy 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 detoxificationThe emerging science on creatine and brain health, including research on sleep deprivation, hypoxia, depression, and a promising 2025 Alzheimer’s pilot trialWhy vegetarians and vegans get zero creatine from food, and why even most omnivores fall short of optimal intakeA head-to-head comparison of creatine forms: monohydrate vs. hydrochloride, ethyl ester, buffered, and liquidThe evidence behind common safety concerns about kidneys, dehydration, and hair lossA weight-based dosing strategy (0.1 g per kg body weight) that may be smarter than the one-size-fits-all 5 grams per dayKey TakeawaysCreatine is foundational to energy production in every cell, not just muscle. Your brain, heart, and bones all benefitSupplementing with creatine offloads your body’s single largest methylation burden, which is especially important for people with MTHFR variantsFor brain benefits, you need higher doses (20 g/day loading) or longer supplementation because creatine crosses the blood-brain barrier slowlyDose 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 needsStick with creatine monohydrate. It is 99% bioavailable, the most studied, and the cheapestThe safety data is extensive: up to 30 g/day for five years with no adverse effects in healthy peopleTake it daily, consistently. Do not cycle on and off