Basic knowledge of vitamins
(1) What are vitamins?
The first to find the vitamin is the 1910 Japan’s Suzuki Mitaro. Vitamins can actually be called “life of the lubricant”, because vitamins in the human body plays a role in lubrication and transformation of lubricants. The most essential elements of the human body’s cells, organs, nerves, blood vessels, lymph, glands, bones, muscles, skin, hair, nails and so on are from the food, through the human metabolism and transformation of nutrients. Scientists in order to facilitate the record, will continue to be found in the nutrients, with English letters to name, such as vitamins: A, B, C, D, E , and so on.
(2) What are the sources of nutrients? How many species are there?
Basically can be divided into seven categories, there are carbohydrates, fats, protein, minerals, trace elements, dietary fiber and water. The body only sufficient and balanced intake of the seven nutrients in order to maintain the normal operation of body tissue, and can help develop, enhance the resistance, repair damaged cells, metabolism, blood circulation, so that the body more healthy.
(3) What are the two characteristics of vitamins?
Vitamins can be divided into two major characteristics, namely, water-soluble and fat-soluble two. Water-soluble vitamins mean that it is easily dissolved in water. Including vitamin C, B2, B6, B12, inositol, choline, vitamin P, U, B group, folic acid, biotin, nicotinic acid and so on. Water-soluble vitamins must be ingested or supplemented daily. Fat-soluble vitamins: refers to it can only dissolve in the lipid, but can not be dissolved in the water of vitamins. Including vitamins A, D, E, K and lipoic acid. Fat-soluble vitamins can be stored in the body’s adipose tissue and liver for a long time, so it is easier to cause excess.
(4) What are the colors of vitamins?
Basically, most of the vitamins are non-colored powdery substances, only the vitamin B2 is yellow and the vitamin B12 is both red and the other vitamins are almost colorless.
(5) Only intake of natural vegetables, fruits, etc., the vitamins is enough?
Fresh vegetables are indeed rich in vitamins, especially those containing vitamins B and C, but vegetables are harvested from the fields to the table during the period of vitamin content because of the transport process, in the refrigerator, in the washing, cooking in the cooking , The gradual loss of its nutritional value.
(6) Can vitamins be taken for a long time?
Fatty vitamin A, D, E, K, vitamin E intake is not serious, but vitamin A, such as excessive intake, will accumulate in the liver and cause excessive disease, but if found immediately Stop taking vitamin A for some time, the symptoms will disappear and no sequelae. But the vitamin D too much disease, the kidney is not only difficult to recover but difficult to clean up the situation, should pay special attention, so should be careful dosage. And water-soluble vitamins if excessive, will be excluded with the urine or sweat, so do not worry about excessive problems.