In a new peer reviewed analysis, scientists quantify amino acids before and after our “last universal common ancestor.” The ...

These amino acids, obtained from the nutritional Biochemicals Corporation, were made up in pink capsules containing 100, 200 or 500 mg. The same capsules filled with lactose served as placebo.

The researchers designed short and simple dipeptides, mainly consisting of alternating amino acids with aromatic side groups, tyrosine (Y) and histidine (H) (Fig. 2). The former is hydrophobic residue ...

The aromatic amino acids (phenylalanine, tyrosine and tryptophan), whilst all falling within other classifications, possess aromatic side chains. Consequently, to different degrees, they all absorb ...

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, boost ...

People born with this condition don’t make enough aromatic l-amino acid decarboxylase (AADC). That’s an enzyme that helps your brain and nervous system work.

“[A]biotic synthesis of aromatic amino acids might be possible in the water–rock interface of Enceladus’s subsurface ocean,” the scientists explain. That’s only as far as Saturn.