A shortage of one common nutrient could help cancer cells and viruses hide from the immune system. Researchers at Rockefeller University found that a shortage of arginine, an amino acid obtained from food and produced by the body, can interrupt the cellular machinery needed to make MHC-I proteins. These proteins act as a surveillance system, [...]

A new study suggests the secret to healthier aging may not be eating less but eating the right balance of protein and amino acids. Could healthier aging depend less on cutting calories and more on getting the right balance of protein and amino acids? A new USC study, published in Cell Metabolism, suggests that possibility. [...]