Less Calories Key to Keeping Muscle Tone as We Agehttp://articles.mercola.com/sites/articles/archive/2002/05/08/calories.aspxWant to stay buff well past retirement age? Studies in some very old -- but surprisingly toned -- rats suggest the key to lifelong muscle health is to eat less, and better. With age there is quite a significant loss of muscle function, but dietary caloricenCommunityServer 2008.5 SP1 (Build: 31106.3070)