Gelatin is a protein made from animal products. Gelatin is used for weight loss and for treating osteoarthritis, rheumatoid arthritis, and brittle bones (osteoporosis). Some people also use it for strengthening bones, joints, and fingernails.
Studies in Europe now show that gelatin provides building blocks of cartilage; effectively providing nutritional support required for cartilage regeneration. A study published in Therapiewoche by Adam ET. Al. (1991), using randomized double-blinded crossover trial of 52 patients with hip or knee osteoarthritis, found that gelatin supplements improved symptoms related to joint pain compared to a placebo. Another study in 1994 by Beuker and Rosenfeld, using a randomized blinded, placebo-controlled trial of 92 geriatric patients, found that gelatin appears to have a significantly positive effect on joint health by reducing the sensation of pain and enhancing mobility compared to a placebo.