Collagen is the most abundant protein in your body, making up 30% of total protein and providing structure to skin, bones, muscles, and organs.

It's made from amino acids like glycine, proline, and hydroxyproline, along with nutrients like vitamin C, zinc, and copper. With age, collagen production drops, leading to wrinkles, joint pain, and weaker muscles.

Lifestyle habits like smoking, excess sugar, and sun exposure also break down collagen.

While collagen supplements are popular, scientific evidence supporting their benefits remains limited. However, eating a balanced diet rich in collagen-boosting nutrients - like citrus fruits, leafy greens, eggs, and fish - can naturally help your body make more collagen.

Medical uses include wound healing, skin fillers, and even rebuilding arteries. Though collagen peptides are promoted for skin and joint health, more unbiased studies are needed. Protecting your natural collagen is key - start with sunscreen, healthy food, and no smoking.