Higher Protein Intake Linked to Higher Muscle Mass

The Framingham Study examined public health issues, such as heart disease and arthritis, in people living in Framingham, Massachusetts. Muscle loss in older adults, a condition called sarcopenia, is a serious public health issue because it increases the risk of falls, diabetes and decreases the quality of life. A sample of more than 2,500 men and women, aged 29 to 86, found a high relationship between protein intake and leg strength and muscle mass. Many recent studies in older adults show that high protein intake stimulates muscle protein synthesis, even in the absence of exercise. The study shows the importance of maintaining adequate protein intake throughout life. (Journal of Nutrition, 145: 1569-1575, 2015)

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