Collagen supplements are available in various forms, including powders, capsules, liquids, and gummies. They are made from the collagen found in the connective tissues and cartilage of animals such as cows, chickens, and fish. Collagen supplements differ in ingredients and collagen type, with some containing one or two types, while others contain up to five. Some supplements also contain other ingredients, such as vitamin C and hyaluronic acid, which help with collagen production and tissue hydration.

Benefits of collagen supplements include increased muscle mass, improved skin hydration and elasticity, and reduced joint pain. Collagen supplements are generally well-tolerated, with few reported side effects. However, some supplements are made from common food allergens, such as fish, shellfish, and eggs, and may cause allergic reactions in some people. Some people also report nausea and bloating when taking collagen supplements, but research has not consistently shown these as side effects.

It is important to note that manufacturers often combine collagen with other ingredients in supplements, and certain ingredients could pose health risks, such as herbs and high levels of vitamins in supplements formulated to support the health of the skin, nails, and hair. Some supplements that contain collagen may also contain megadoses of nutrients like biotin, which could interfere with laboratory tests for heart and thyroid function.

In summary, collagen supplements are associated with several health benefits and very few known risks. However, it is important to read the labels carefully and be aware of any potential allergens or other ingredients that could pose health risks. It is also recommended to speak with a healthcare provider before taking collagen supplements, especially if you have any underlying health conditions or are taking medications.