Pump up the Potassium
Studies show that women who ate foods high in potassium kept more muscle as they aged. The nutrient helps to shield against acids that break down muscle tissue. A partial list of prime potassium-rich fruits and vegetables are apricots, bananas, oranges, kiwis, lima beans, spinach, tomatoes, meats, poultry, and fish.
(Source: The American Journal of Clinical Nutrition)