Scientists uncovered how the amino acid leucine enhances mitochondrial efficiency by preserving crucial proteins that drive energy production. By downregulating the protein SEL1L, leucine prevents ...

Of the 20 essential amino acids, nine are actually essential. Of those nine, three are branch-chain amino acids (BCAAs). Leucine falls into both groups. All BCAAS are vital for building and repairing ...

mTORC1 carries out its role by regulating certain anabolic (synthetic) and catabolic (degradative) processes. These involve protein synthesis; production of the protein-synthesis machinery in the form ...

Leucine is an amino acid important for your muscle health and blood sugar levels. Many foods contain it, including eggs, seeds, oats, and legumes. You may have heard about an essential amino acid ...

In a recent study published in Nature Metabolism, researchers conducted clinical studies on murine animals and humans to evaluate the impact of high protein intake on the amino acid-mammalian target ...

In 2024, creatine rose in popularity as a fitness supplement, but in 2025, the hottest supplement is expected to be leucine. Dr. Erin Barrett, PhD and Sr. Director of Innovation and Scientific Affairs ...

Leucine is a nutrient that isn’t talked about nearly as much as those like vitamin C and magnesium, although some experts say it’ll be the “it” supplement of 2025. It has many important functions in ...

In a randomized control study of 10 healthy young men, researchers compared how consuming the single amino acid leucine or its two-molecule equivalent, dileucine, influenced muscle-building and ...

Amino acids are the building blocks of protein. These molecules come together to form proteins. Your body uses them for many important functions, such as making hormones, building muscle, and ...

Colino is a contributor for TIME. Colino is a contributor for TIME. Amino acid supplements have soared in popularity in recent years. Social-media influencers peddle them with promises that they’ll ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? Nerd out with me for a sec about why amino supplements matter. They’re the ...