Getting enough protein and moderate amounts of fat from food may help older men's muscles respond better to weight training, a study suggests.
Researchers found that among 45 middle-aged and older men who went through a strength training program, those with more protein in their diets tended to have a greater short term increase in testosterone levels right after their workouts. This hormonal response, in turn, was related to greater gains in muscle mass over 21 weeks of weight training.
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