Type II Collagen
- Collagen is a protein that is part of cartilage, bone, and other tissues in animals and humans. People use collagen from chickens for medicine.
- Chicken collagen is used to treat joint pain associated with many types of arthritis and surgery, as well as back pain, neck pain, and pain following injury.
- Chicken collagen is said to work by causing the body to produce substances that fight pain and swelling (inflammation), but this is unproven. Chicken collagen also contains the chemicals chondroitin and glucosamine, which might help rebuild cartilage.
- Collagen type II is POSSIBLY SAFE when taken by mouth in doses up to 2.5 mg daily for up to 24 weeks. It’s not clear what the side effects might be. Other collagen products, such as bovine collagen and gelatin, have caused allergic reactions. Since collagen type II contains chondroitin and glucosamine, large doses might lead to the same side effects as those seen with chondroitin and glucosamine supplements. These side effects include nausea, heartburn, diarrhea and constipation, drowsiness, skin reactions, and headache.
- Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking collagen type II if you are pregnant or breast-feeding. Stay on the safe side and avoid use.
- Egg or chicken allergies: People who are allergic to chicken or eggs should not use collagen type II. Collagen products have been associated with allergic reactions.
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Source: WebMD, “Type II Collagen”, www.webmd.com/vitamins-supplements/