Nine essential amino acids—histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine—are available only through foods or supplements.

What is the difference between whey protein and amino acids? Both whey protein powder and amino acids are billed as supplements which can help you build muscle.

L-carnitine supplements may produce energy for workouts, improve heart health, and help PCOS symptoms. Dietitians explain whether you should take it.

In supplement form, amino acids may help your health, according to experts, but not if you’re already getting enough protein as a nutrient.

Amino Acids are organic compounds that make up proteins in your body. Explore foods rich in amino acids and how they contribute to muscle growth, metabolism & overall health.

Taurine is an amino acid with a variety of functions. Learn more about the sources of taurine, its uses, and its side effects.

In this study, branched-chain amino acids (BCAAs) clearly impacted the reproductive function of male mice, causing significant changes in sperm concentration and a decline in fertility.

Supplements containing branched-chain amino acids (BCAAs) are popular for boosting muscle growth and performance. Limited research suggests that they may provide other health benefits as well.

A proprietary essential amino acid supplement in adolescent girls with obesity and polycystic ovary syndrome improved multiple liver-related outcomes.

Amino acid supplements have soared in popularity in recent years. Social-media influencers peddle them with promises that they’ll build muscle, enhance athletic performance, promote weight loss ...

Whey protein powder and amino acids are supplements created to help you build muscle, but which one should you use?

Amino acid supplements have soared in popularity in recent years. Social-media influencers peddle them with promises that they’ll build muscle, enhance athletic performance, promote weight loss ...