A plant-based diet may be key to lowering risk for heart disease. Penn State researchers determined that diets with reduced sulfur amino acids — which occur in protein-rich foods, such as meats, dairy, nuts and soy — were associated with a decreased risk for cardiovascular disease. The team also found that the average American consumes almost two and a half times more sulfur amino acids than the estimated average requirement.
Amino acids are the building blocks of proteins. A subcategory, called sulfur amino acids, including methionine and cysteine, play various roles in metabolism and health.
“For decades it has been understood that diets restricting sulfur amino acids were beneficial for longevity in animals,” said John Richie, a professor of public health sciences at Penn State College of Medicine. “This study provides the first epidemiologic evidence that excessive dietary intake of sulfur amino acids may be related to chronic disease outcomes in humans.” Continue reading