"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Nerd out with me for a sec about why amino supplements matter. They’re the building blocks of protein and ...

There are about as many performance supplements on the market as there are protein-packed foods in a WH editor’s fridge. (Hint: It’s a lot.) A biggie as of late? Amino acids, which are the building ...

Essential amino acids refer to the nine amino acids that our body can’t make on its own. Numerous foods, including animal- and plant-based sources, contain all of the essential amino acids. Essential ...

The study adds to growing evidence that some often-underappreciated, 'non-essential' amino acids play important roles in the nervous system. The findings may provide a new way to identify people at ...

Find out if this supplement is truly worth taking or not. Reviewed by Dietitian Jessica Ball, M.S., RD "Key Takeaways: " Essential amino acids refer to the nine amino acids that our body can’t make on ...