Leucine and Isoleucine are both branched chain amino acids (BCAAs) that are found in cheese, eggs, most meats, seeds, and nuts. These foods are common in the we

Leucine and Isoleucine are both branched chain amino acids (BCAAs) that are found in cheese, eggs, most meats, seeds, and nuts. These foods are common in the western adult human diet, and may be more prevalent in certain protein-rich diets. The article takes a favorable view of low protein diets, and cites other studies supporting the general idea that metabolic and longevity improvements are correlated with protein restriction. This particular study’s experimental subjects are mice and not humans.