International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine

Kreider RB, Kalman DS, Antonio J, et al. · Journal of the International Society of Sports Nutrition

Position stand concluding creatine monohydrate at recommended doses is safe long-term in healthy populations (including older adults) and effective for strength and lean mass; kidney-damage claims in healthy users are not supported by controlled data.

Population

Evidence review across healthy and clinical populations

Intervention

Creatine monohydrate, typically 3-5 g/day (or 20 g/day x 5-7 days loading)

Comparator

n/a

Limitations

Several authors consult for or receive funding from supplement industry; a position stand, not a systematic review.