Just chugging lots of water to rehydrate after a workout won't replace the salt you lost and might even worsen the electrolyte imbalance in your body. Here's our guide to the optimal mix of sodium, carbohydrates, and protein in your post-exercise rehydration drink, based on the latest research.

One of running’s worst-kept secrets is that caffeine boosts your performance. What is less well-known is how much caffeine to take, when, and in what form. Here’s our guide on how to get the most out of this wonderful substance for races over various distances.

Beta-alanine: We delve into the science, benefits, safety, dosage recommendations, and whether it's the right supplement for you.

What does the research say? Does BPC-157 work for athletes, and is it safe?

Sodium bicarbonate is thought to help runners perform better. But does the science support it? Here's what the research reveals.

Can you boost running performance with ketones? We explore the research on ketogenic diets and ketone supplements.

Creatine supplementation does improve performance for certain types of endurance sport, but runners have to make some tricky trade-offs.

Patients sometimes ask me “Will TB-500 help my injury to heal quicker?” and then I have to explain to them that it is not a clever idea.

We look at research into the safety of selective androgen receptor modulators (SARMs), a controversial group of muscle building supplements.