Side effects of Collagen Chondroitin Calcium Tablets are not known and should not be taken by people who are allergic to any of its ingredients. Collagen Chondroitin Calcium Tablet is a kind of health food. Take a certain brand for example, every 100g of Collagen Chondroitin Calcium Tablet contains 17.65g of calcium, 7.68g of protein and 3.76g of chondroitin sulfate. Collagen Chondroitin Calcium Tablets have certain health care functions to increase bone density, suitable for middle-aged and elderly people, but its efficacy is limited, and can not replace the drug to take. The side effects of Collagen Chondroitin Calcium Tablet are not clear, and it is not recommended for those who are allergic to it. But note that it must be consumed in moderation, do not overdo it, so as to avoid excessive intake of nutrients, causing a burden on the body. It is also important to note that Collagen Chondroitin Calcium Tablets are not suitable for children and adolescents, pregnant women, breastfeeding mothers and other people.