In one study, 27 frail men took 15 grams of collagen while participating in an exercise program daily for 12 weeks. Compared with men who exercised but did not take collagen, they gained significantly more muscle mass and strength.
Collagen helps maintain the integrity of your cartilage, which is the rubber-like tissue that protects your joints. In one study, 73 athletes who consumed 10 grams of collagen daily for 24 weeks experienced a significant decrease in joint pain while walking and at rest, compared with a group that did not take it.
Your bones are made mostly of collagen, which gives them structure and helps keep them strong.
Researchers have theorized that taking collagen supplements may help reduce the risk of heart-related conditions.
Collagen provides structure to your arteries, which are the blood vessels that carry blood from your heart to the rest of your body. Without enough collagen, arteries may become weak and fragile.
Collagen is a major component of your skin.
It plays a role in strengthening skin, plus may benefit elasticity and hydration. As you age, your body produces less collagen, leading to dry skin and the formation of wrinkles.
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