In this issue, Professor Ge, honorary chairman of China Nutrition Society, is a famous nutritionist. Professor Ge has been supplementing vitamins for 30 years. At that time, an American professor named Pauling came to China to give a lecture. He is an expert in vitamin C and the only person in the field of nutrition who won the Nobel Prize twice. He advocates eating vitamin C and eating more. In fact, the body only needs tens of milligrams, and the recommended amount is 100 milligrams. But he advocates eating more than 1000 mg. He thinks that eating more than this amount will increase the body's resistance. Professor Ge began to eat 400 milligrams a day. Vitamin C is an antioxidant nutrient. -Antioxidant nutrients: Vitamin C, carotene, mineral C and vitamin E all have their own physiological needs. If they exceed this amount, eating more may help prevent chronic diseases. Including cardiovascular diseases and cancer. Vitamins can be divided into fat-soluble and water-soluble. Fat-soluble vitamins: fat-soluble vitamins such as vitamin A, vitamin D, vitamin E and vitamin K are mainly taken from animal foods-water-soluble vitamins B: vitamin B 1, vitamin B2, folic acid, vitamin B 12, water-soluble vitamins C: vitamin C, nicotinic acid, etc. are mainly taken from fat-soluble vitamins in plant foods, which can exist in the body after reaching the human body and are absorbed slowly. Water-soluble vitamins are generally available and also available. If you absorb too much, it will be excreted and you can't stay. Fat-soluble vitamins vitamin A and vitamin D are easy to cause poisoning. Vitamin e and vitamin k are not toxic. Vitamins that are easy to lack Every vitamin deficiency has its symptoms. Anyone can make a diagnosis according to its symptoms, but most of us can't reach that serious degree. But it will have an impact on life function. Expert tip: cholesterol can promote the absorption of vitamin D, and the role of cholesterol is greater than it. Reduce the loss of vitamins. Vegetables and fruits will reduce their vitamin C when placed. Fruit with skin is better. The food bought today will be worse tomorrow and worse the day after tomorrow. They change quickly, so the fresher the vegetables, the better. Vegetables can still retain 70% vitamins through quick frying and blanching, but the more water is used, the longer blanching time is, and the more losses are. Expert tip: when cooking, stir fry quickly with urgent fire to reduce the loss of vitamins, and quickly remove the blanched vegetables. You don't have to worry, the amount your body needs is much lower than the amount in food. This loss has been taken into account when suggesting how much vegetables you should eat. Scientifically supplement vitamins, but some people think that some things are unnecessary. You don't lack them, or you already have more. Aren't you more unbalanced to supplement them? And what comes in has to be discharged, which not only wastes resources but also wastes your physiological function. So one way is to do a diet survey. There are many kinds of vitamins, including "natural vitamins". Professor Ge said: He doesn't care at all, and he doesn't believe it. Things with the same molecular structure have the same function. A bottle with more than one yuan is the same as a bottle with more than one hundred yuan. Causes of vitamin poisoning Which vitamins are fat-soluble vitamins? That is, a and d, the two are often combined. If you use the wrong amount, you will be poisoned. If the injection is repeated. Will not be poisoned in normal life. However, it is reported that someone ate a sheep liver at a time and was poisoned by eating too much. The recommended vitamin A is 800 international units. In fact, eating 8000 won't be poisoned, but tens of thousands are poisoned. From the perspective of preventing chronic diseases, vitamin E can be eaten more. Physiology needs 30 milligrams a day. The safe amount is 300 mg. When the dose was less than 300 mg per day, no adverse reactions were observed. According to the literature, long-term supplementation of more than 300 mg will cause cardiovascular problems. Therefore, large quantities are not recommended. It is recommended that the average person take 100 mg a day.