Sport News

How creatine works, and where the evidence stops

The mechanism is well described and the performance evidence is narrow but consistent. The cognitive evidence is thinner, and the label claims are the manufacturers' own.

FTC sends refund checks over unproven supplement health claims

Does biotin actually help hair, skin and nails?

NAC is back on supplement shelves. Here's what changed, and what didn't

The FDA confirmed in 2024 it does not object to NAC in dietary supplements, ending a four-year limbo — but the compound's efficacy evidence remains narrow, and the policy story is the real news.

Weigh-in reform in combat sports

Rapid weight cutting has documented health consequences; commissions and promotions have reformed weigh-in rules, and the evidence shows what the changes did and did not fix.

Marathon fueling: what the evidence says

World Marathon Majors winners and mid-pack runners face the same physiology; the evidence shows carbohydrate intake and practiced absorption decide the final 10 kilometres.