Supplement Articles

Everyone’s talking about peptides right now. But limited safety data, injection concerns, and questions about sourcing have kept me (an exercise scientist) on the sidelines.

Does creatine damage your kidneys, cause hair loss, make you bloated, or lead to dehydration? I'll separate myth from science.

Creatine can do more than help you build muscle—but getting those additional benefits may require more than the standard dose. Here’s what the latest research says about effectiveness and safety.

You don’t need a cabinet full of supplements to build muscle. If money's tight, these are the three I'd prioritize.

A shake can help you get enough protein around training or fill a gap in a meal. Here’s when I think it makes sense—and when you can skip it.

Eating enough protein is essential for muscle growth. But when should you eat it? Here's what the latest research says about protein timing and meal frequency.

Protein is the foundation of muscle growth. Here’s how many grams you should be getting every day and what food sources they should come from.

Ignore all the conflicting fitness advice. These are the three priorities every woman over 40 should focus on for a body that's stronger, leaner, and sexier.

A new study found that bodybuilders using anabolic steroids had significantly larger hearts, livers, kidneys, and spleens than natural athletes. Here's what the research says—and what it could mean for your health.