Pig’s feet have been eaten for generations in cuisines around the world, but one reason they remain so popular is their naturally high amount of connective tissue. When slowly cooked, that tissue breaks down and produces gelatin, which comes from collagen and gives the broth its thick, rich texture.

Collagen is an important structural protein found throughout the body, including in skin, bones, cartilage, tendons, and joints. Because pig’s feet contain plenty of skin, tendons, and connective tissue, they provide collagen-derived proteins and amino acids as part of the meal.

This is why a traditional serving of slowly cooked pig’s feet can provide some of the same building blocks people seek from collagen supplements. Long cooking methods are particularly effective because they soften the tough connective tissues and release gelatin into the cooking liquid.

However, eating pig’s feet does not guarantee that someone will never need a supplement. The body digests dietary collagen into smaller peptides and amino acids before using them where needed, and overall nutrition—including adequate protein and vitamin C—also matters for the body’s own collagen production.

So the surprising answer is collagen supplements: pig’s feet are naturally rich in collagen-containing connective tissue and can be a food-based source of collagen-derived protein. For people who enjoy them, they can be incorporated into a balanced diet without treating them as a miracle food or replacement for medical advice.