That often takes form in supplements—and hydroxymethylbutyrate, better known as HMB, is popping up everywhere these days, from peeking out of your gym pal’s bag to that TikTok video.

Beta-hydroxy beta-methylbutyrate, known as HMB, is a byproduct of leucine, a type of amino acid. Its benefits to muscle growth, minimizing muscle damage, and improving physical performance have ...

We were impressed with the powerful combination of HMB and Vitamin D3 plus calcium in these capsules. Vitamin D is associated with a range of benefits, including mood and immune support ...