A pigment that makes feathers and hair orange helps prevent cellular damage by removing excess cysteine from cells.

Scientists found that colour production in birds is not just cosmetic but may be part of the body's internal defence system.

People with high levels of the amino acid cysteine carry 6-10 kilograms more fat than other people. Norwegian researchers studying this phenomenon are generating knowledge which could help to prevent ...

Historically, much of weight loss advice focused on eating less and moving more. In recent times, researchers discovered that what, and not just how much, someone eats also influences weight loss and ...

N-acetylcysteine (NAC) is a supplement form of the amino acid cysteine. You get cysteine by eating high-protein foods such as beef, chicken, eggs, and whole grains. Your body can also make some ...

As the most reactive member of nature’s standard stable of amino acids, cysteine is commonly tapped as a nucleophile in enzyme active sites. But cysteine’s reactivity also makes it uniquely ...

All proteins are built from the same 20 amino acids. One of these, cysteine, was assumed not to have been present at the origin of life. In a new study, scientists have recreated how cysteine was ...

Your cells contain glutathione, which is a substance made from three amino acids: cysteine, glutamate, and glycine. Glutathione acts as an important antioxidant in your body. That means it helps ...