I remember that besides pig's trotters, there are many foods that can supplement collagen. Let me give you an example. First, the protein of fish is fine, and it is also a good source of collagen supplement. There are also pigskin, pigtail, beef tendon, chicken wings, chicken skin and chicken feet, which are all foods with more collagen. According to nutritionists' analysis, every100g of pigskin contains 26.4% protein, which is 2.5 times that of pork, but the fat is only 2.27g.. It's half that of pork, especially protein in the skin. Its main component is collagen, which has the functions of increasing skin water storage, moistening skin, protecting skin and balancing water inside and outside cells. Protein is the main raw material for skin cell regeneration. It is human skin, plump and delicate, which reduces or disappears wrinkles and makes people look young. This is the sacred product of beauty. There are also rice oils such as beef bone soup and millet porridge. Sea cucumber, fish, soft-shelled turtle and shark's fin all contain high collagen and are the best sources of collagen, especially shark's fin. Collagen content is very high, so people began to kill sharks unscrupulously to hunt their fins. There is also a high content of collagen eggs, that is, bird's nest, but the price is more expensive. Most people can't accept it. Its collagen content is also relatively high, and its taste is better, but its price is also relatively high, but the effect of supplementing collagen is very good!