As a matter of fact, they do. A recent study compared the published research (23 studies) comparing the calories and nutrients of elderly people with and without sarcopenia. Sarcopenia is a condition, which is characterized by the loss of muscle mass and strength, as a result of aging.

If you have a normal weight (BMI: 18.5 to 24.9) in your 30s, don’t be afraid to gain a few extra pounds in your 50s. According to a recent study, it may help you live longer.