by Jonathon Sullivan MD, PhD, SSC, PBC Beta-alanine is a popular ergogenic supplement, known for the distinct tingly sensation it causes shortly after ingestion. But does it do anything for us? One of our most popular videos is our piece on creatine supplementation. In that piece, I discussed one of the few supplements that I find even partially beneficial for the athlete of aging and how it works. Creatine improves anaerobic energy metabolism, allowing us to work in a high-p