Once the preserve of bodybuilders and sprinters, creatine is now being touted as everything from a brain booster to a healthy-ageing essential. But should we all be taking it? Not quite.
“There’s really substantial evidence of creatine being effective,” says Bethan Crouse, a sports nutritionist at Loughborough University. “From a sport perspective, it’s probably one of the more well-researched supplements in terms of actually having a performance impact.”