Being obese puts older adults at higher risk for functional decline. One concerning risk of weight loss in older adults is they''ll unintentionally lose lean body mass (muscle) along with the fat. Including protein-rich foods in a weight loss regimen may preserve muscle loss. While more research is needed, a new study adds to a growing body of evidence that shows eating lean, high-quality protein, like pork, can help people lose or maintain weight by contributing to people feeling full and by preserving lean muscle.