The Value of Gelatin and Collagen for Joint, Skin and Gut Health

Gelatin is not only a functional ingredient; it also has real nutritional value. A meta-analysis published in the Aesthetic Surgery Journal in 2026 reviewed 113 randomised controlled trials involving nearly 8,000 participants and found that collagen/gelatin supplements showed measurable improvements in skin elasticity and hydration, musculoskeletal health and osteoarthritis symptoms, while the evidence for oral health and cardiometabolic markers was less conclusive.

Because gelatin is essentially cooked collagen — the most abundant structural protein in the human body — it shares most of collagen’s amino-acid profile, including glycine and proline, which support connective tissue, gut-barrier integrity and joint function.

For brands developing health supplements or functional foods, this body of evidence gives bovine-hide gelatin a genuine health story to tell, beyond its role as a processing ingredient.