It seems that every time you turn around, diet recommendation is changing. Eat only vegetables. Eat only meat. Eat only colored things — nothing brown. Heck, even the lauded food pyramid no longer exists. But one thing that hasn’t changed in the last 30 years is this: certainty that seniors start to lose muscle mass after a certain age. Health Day magazine has distilled a bunch of research on this topic, and has the latest recommendations on how to get the protein you need to maintain strength and muscle mass, and lead a longer, healthier life.