Usually speaking, as long as the food structure is balanced, people can get enough vitamins from food, without additional supplementation. But the problem is that it is not easy to achieve this balance, so vitamin deficiencies are not uncommon. For example, children who are partial eaters, people who do not eat breakfast, adults who do not eat regularly, dieters, vegetarians, pregnant women whose nutritional needs have increased dramatically, sick people, elderly people with restricted diets, people who eat too much food, people who never care about recipes, and so on, when it is beneficial to supplement with an appropriate dose of vitamins. An overworked body also needs extra extra vitamins, so vitamin supplementation is still a recommended way for modern people to stay healthy.
Who should take vitamin supplements?
Those who work under more pressure, eat irregularly, partial food, are in a state of sub-health, and usually always feel weak, tired, and uncomfortable, etc., as well as some special groups of people, such as those who often work at night or often work in high temperature, high heat, cold, etc., and those who have a very stressful cerebral work, etc., need to take a proper supplement of vitamins. However, the prerequisite is to eat three normal meals, and on top of that follow the doctor's instructions to take vitamin supplements in regular doses.
Why do I need extra vitamins?
Because all kinds of cooking methods and food storage methods can lead to vitamin losses, and the losses can be significant. Losses can range from as low as 30 to 40 percent to as high as 90 percent or more. For example, vitamin C is a water-soluble component, so when washing vegetables, it is easy to lose; vitamin C is afraid of high temperature, cooking temperature is too high or heating time is too long, such as stewed vegetables, casserole, etc., vitamin C in the vegetables will be a large number of destruction; vitamin C is also easy to be oxidized by the oxygen in the air, the longer the vegetables and fruits are stored, the greater the vitamin C is lost. So theoretically eat into some vegetables, fruits, but in fact the vitamin supplement is not enough.
Many people's work pressure and pace of life is also different from before, and mental tension and heavy labor load can also cause vitamin loss. And now it is difficult for people to achieve a truly balanced diet, some partiality, food is not eaten comprehensively, often eat fast food, etc. will lack of vitamins, so I'm afraid that dietary supplementation of vitamins alone is not enough.
Supplementation of vitamins avoid excessive
Vitamins are divided into water-soluble and fat-soluble two kinds of water-soluble vitamins can be taken with the urine out of the body, less toxic, but a large number of people can take damage to human organs. For example, taking vitamin C many times over the normal dose may stimulate gastric mucous membrane bleeding and the formation of urinary tract stones.
Fat-soluble fat-soluble vitamins can't be supplemented indiscriminately. If the fat-soluble vitamins are supplemented in excess, including vitamins a, e, k, d, it is easy to cause toxic reactions in the body.
Long-term large oral vitamin a, can not be excreted with the urine, easy to accumulate in the body, may occur bone decalcification, joint pain, dry skin, loss of appetite and other symptoms of poisoning.
Long-term large amounts of oral vitamin D, can lead to eye inflammation, skin itching, anorexia, nausea, vomiting, muscle pain and fatigue.
Vitamin e overdose can cause platelet aggregation, thrombosis, vitamin e large doses of long-term use can lead to gastrointestinal dysfunction, dizziness, blurred vision, etc., women can cause excessive menstruation or amenorrhea. Experts suggest that vitamin e is best supplemented through food, and if special supplementation is needed, it should be done under the guidance of a doctor.
Pregnant women who supplement excessive amounts of vitamins can also have non-negligible side effects on the fetus. For example, long-term large amounts of vitamin C will lead to miscarriage, taking too much vitamin E will make the fetus brain development abnormal, too much vitamin D will lead to problems in the development of the fetus's aorta and teeth. So vitamin daily supplementation has a ration, there is no need to expand the dose on their own.