Fish are an excellent source of collagen from food, as long as you leave the skin on. That’s because much of the collagen found in fish is stored in the skin. Other benefits of fish include omega-3 fatty acids and vitamin D. At the study’s end, those taking the calcium, vitamin D, and collagen supplement had significantly lower blood levels of proteins that promote bone breakdown than those who took only the calcium and vitamin D. The collagen group also had lower loss of bone mineral density ( 13).

The bovine type I collagen is the main content in the gelatin contained in the measles, mumps, and rubella vaccines. Fish meat and skin also contain type I collagen. Most children with anaphylaxis showed sensitivity to these vaccines that might be due to the bovine gelatin that was included in the vaccines [ 148]. Two cases of allergic reaction to bovine collagen as a therapeutic device or treatment, including a 39-year-old woman and a 62-year-old woman, were reported [ 149].

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For vegetarians and vegans, consider eating foods high in vitamin C. Eating foods rich in this nutrient encourages the body to make its own collagen and keep you healthy and strong.

However, not all collagen supplements are created equal, and collagen is available in several forms. Even though the research is promising, experts caution that stronger evidence is still needed before recommending collagen as a treatment for osteoarthritis. 3. May prevent bone loss Supplements vary in their source and type: Bovine collagen supplements [from cattle] are the most common and consist of collagen types I and III; these are popularly promoted for hair, skin, and nail health. Collagen sourced from fish, which is growing in popularity, contains primarily type I collagen,” says Dr Elif. While there is research to suggest collagen supplements could benefit your skin, more studies are needed to get a definitive answer. Dr Mahto doesn’t believe collagen supplements will be harmful, especially in the doses available.Because collagen production starts to decline as you age, many people use supplements to help increase collagen levels naturally. There are approximately 28 different types of collagen in the human body, but four are considered the most common. They are: