Collagen is a vital protein that makes up about 30% of the total protein in your body, providing structure, strength, and support to various tissues including skin, muscles, bones, and connective tissues
. Its key functions and benefits include:
- Skin Health: Collagen strengthens skin, improves elasticity and hydration, and helps reduce wrinkles and dryness as you age. Supplements may stimulate your body to produce collagen and other skin-structuring proteins, potentially slowing skin aging
- Joint Support: Collagen is important for healthy joints and may help relieve joint pain and stiffness, particularly in conditions like osteoarthritis by supporting cartilage and reducing inflammation
- Bone Strength: Collagen forms a major part of bone structure. Supplementation may help prevent bone loss and increase bone mineral density, reducing the risk of osteoporosis and fractures
- Muscle Mass: Collagen contributes to skeletal muscle composition. Some studies suggest collagen supplements combined with exercise can increase muscle mass and strength in older adults
- Heart Health: Collagen helps maintain the structure and flexibility of arteries. Adequate collagen may reduce artery stiffness and lower the risk of atherosclerosis, which can lead to heart attack or stroke
- Nails and Hair: Collagen may strengthen nails and potentially improve hair thickness and reduce breakage, though more research is needed
- Other Roles: Collagen supports blood clotting, organ protection, skin cell regeneration, and may have benefits for gut health and mood, although these require further scientific validation
While collagen supplements are popular and show promise for some benefits, scientific evidence is still evolving, and natural collagen production depends on a balanced diet supplying necessary nutrients
. In summary, collagen is essential for maintaining the integrity and function of skin, joints, bones, muscles, and blood vessels, playing a crucial role in overall structural health and aging
