Creatine is widely used as a fitness supplement and is increasingly promoted for potential cognitive benefits. In a Guardian audio/video programme, the publication asks whether the scientific evidence matches the hype around taking creatine.
The segment reviews what creatine is and how it is typically used, focusing on its role in supporting muscle performance. It also addresses claims circulated by athletes and fitness influencers that creatine may benefit the brain or cognition. The discussion, led by science editor Ian Sample and nutritional physiologist Dr Justin Roberts of Anglia Ruskin University, frames the central question as one of evidence: what studies show creatine can do, what is supported by stronger data, and where claims remain uncertain.
Across the outlets, the emphasis remains on summarising the current research picture rather than promoting universal use. The programme format highlights key findings and uncertainties while explaining why creatine has become a common supplement, including the distinction between well-established effects and more tentative or emerging areas.
