A comprehensive safety analysis of over 26,000 participants has conclusively resolved a long-standing concern in sports nutrition: creatine supplementation does not cause kidney damage. The myth stems from a fundamental misinterpretation of routine blood tests showing elevated creatinine levels during supplementation. According to research published in the Journal of the International Society of Sports Nutrition, this elevation reflects normal metabolic processes rather than kidney dysfunction. When creatine supplementation increases total body stores, more creatinine is naturally produced as a byproduct of skeletal muscle phosphocreatine degradation. Healthcare providers now have robust, evidence-based findings to confidently address patient concerns about creatine safety. This landmark review synthesizes data from multiple clinical trials, establishing clear guidance for medical professionals counseling patients on supplementation.
Was this article helpful?
