Many people think that eating pig's trotters is a good choice to supplement collagen, beauty beauty. What effect does collagen have on the skin? Can eating trotters really supplement collagen? How should I make it up?

Collagen is a very important protein in human body, which mainly exists in joint tissues and is the main component of ligaments and tendons. The function of collagen on skin is to fill between dermis to support skin tissue, increase skin firmness, shrink pores, and make skin firm and elastic. Collagen is very hydrophilic, that is, it can keep the moisture of the skin from evaporating, and it can also absorb water and keep the skin moist. Seeing this, everyone thinks it is more necessary to supplement collagen.

Beef tendon, trotters, chicken feet, fish skin and pigskin all contain collagen. It seems that eating trotters to supplement collagen is a good choice. However, collagen is an incomplete protein, which will be decomposed into small amino acids in the body after being eaten by human body, and then re-synthesized into protein needed by human body after entering the liver. Therefore, even if you eat pig's trotters, there is no guarantee that collagen will be synthesized in the body, and it is possible to synthesize other protein needed by the body. Besides collagen, trotters also contain a lot of fat and cholesterol. "Fat is more likely to lead to obesity than carbohydrates and protein, and obesity is an important factor of all chronic diseases. Excessive intake of cholesterol will increase the risk of hyperlipidemia, and excessive intake of protein will increase the burden on liver and kidney. In order to supplement collagen, it is obviously not worth the loss to consume a lot of fat and cholesterol at the same time. Patients with chronic diseases such as hypertension, hyperlipidemia, arteriosclerosis and liver disease must eat carefully.

If healthy people eat trotters, they can make them together (soybeans are rich in lysine and proline), such as stewed trotters with soybeans, boiled trotters with peanuts and so on. Because when the protein in the body is sufficient, it needs rich lysine and proline at the same time, and with the help of vitamin C, it will be hydroxylated into hydroxylysine and hydroxyproline, thus synthesizing collagen. "when vitamin c is deficient, the synthesis of collagen in the body is blocked, which will bring a lot of trouble. All places that need collagen, including bones, tendons, skin and blood vessels, will have problems. The skin is hardly fatal, but if the blood vessel leaks, it will be in big trouble-because the outer wall of the blood vessel is hoof tissue, and the main component is collagen. Once there is a problem with blood vessel maintenance, from subcutaneous hemorrhage to visceral hemorrhage, it is a symptom of "scurvy". Vitamin C is also called ascorbic acid, which means it can prevent this disease. " [2] Speaking of the importance of vitamin C, here are some common foods rich in vitamin C: jujube, 100g edible part contains 900mg of vitamin C; Fresh jujube, 100g edible part contains 243mg kale, 100g edible part contains 76mg guava, 100g edible part contains 68mg kiwi fruit,100g edible part contains 62mg vitamin C.

Knowing the synthesis process of collagen, we all know that as long as there are enough nutrients such as protein and vitamin C in the body, the human body can automatically synthesize collagen. In contrast, it is much weaker to supplement protein with pig's trotters, because many foods are sources of high-quality protein, such as milk, eggs, fish and lean meat. In short, it is not enough to do one thing to maintain your skin. You still have to do it: first, drink plenty of water, and 2/3 of your body is water. Every 24 hours, the human body excretes about 1.5 liters of water through urine, evaporates about 750 ml of water through the skin, and loses water through breathing and feces. So be sure to drink 1200ml of water every day. Second, balanced nutrition. Eat 200-400g of fruit and 300-500g of vegetables every day. Third, moderate exercise. Life lies in exercise, which can accelerate metabolism and help to expel toxins from the body. Exercise can improve body shape and reduce excess fat content in the body. Fourth, reduce the time of skin exposure in the hot sun and do a good job of sun protection.