Creatine Monohydrate — The Most Evidence-Backed Supplement You Might Not Be Taking

The Evidence Base Is Unusually Strong

Creatine monohydrate has over 500 peer-reviewed studies documenting its effects. This is not a common position for a sports supplement. The evidence base spans multiple independent research groups, multiple decades, and multiple populations.

Primary Benefits

Strength and power: creatine supplementation increases phosphocreatine stores in muscle, enabling faster ATP regeneration during maximal efforts. Strength gains in resistance training studies are typically 5 to 15% above placebo over 4 to 8 weeks.

Cognitive function: phosphocreatine is present in the brain. Creatine supplementation improves working memory and processing speed, particularly under sleep deprivation or cognitive stress. A 2023 meta-analysis found significant cognitive benefits across multiple study designs.

Recovery speed: creatine reduces exercise-induced muscle damage markers and accelerates glycogen resynthesis, allowing higher training frequency.

What Creatine Does Not Do

Cause kidney damage in healthy people — this myth comes from confusion between elevated creatinine (a creatine metabolite) and actual renal impairment. Multiple long-term safety studies show no kidney damage at standard doses.

Cause significant water retention in most people — some people retain 1 to 2 kg of intracellular water initially, which resolves after a few weeks.

The Dose

3 to 5 g of creatine monohydrate daily. No loading phase is necessary unless you want to reach saturation faster. Loading saturates stores in a week instead of three to four weeks but is not required for the same endpoint.