Creatine is popular for muscle growth, but it’s not risk-free. Learn the serious side effects and how to use it safely, based ...

“Creatine is a natural compound that's found in our muscles and brain,” says Michelle Cardel, PhD, MS, RD, and chief ...

That may not be the only benefit. A growing body of research suggests creatine may be good for brains as well as brawn. That ...