Vitamin deficiency can indeed cause a series of skin problems, for example, lack of vitamin A can cause excessive keratinization of hair follicles, lack of vitamins B2, B6 and other B vitamins can lead to seborrheic dermatitis, dry lips, lack of vitamin C can lead to poor wound healing, Easy to crack and so on.
However, in modern society, the occurrence of vitamin deficiency in nutritional diseases has become increasingly rare. The majority of people do not suffer from vitamin deficiency diseases as long as they eat normally. And, if it is indeed vitamin deficiency, absorption or use of those who are impaired, not only will there be skin problems, often accompanied by other symptoms, such as the lack of vitamin A causes eye and visual abnormalities (referring to night blindness, conjunctiva and corneal xerosis, dry eye disease and Corneal softening, not myopia, lack of nervous system abnormalities caused by B vitamins, and lack of vitamin C-induced scurvy. If you are simply a Weekly barb, most of them are only partial skin abnormalities, not a reflection of systemic disease, and are not caused by a lack of vitamins.
Most people think that lack of vitamins can cause illness, so you may wish to add some, and it is harmless. But the fact is that vitamins are not always better, and excessive intake of some vitamins (such as vitamin A and vitamin B6) can cause various diseases and even poisoning.
Studies have shown that eating selenium, beta-carotene, and vitamin E increases the risk of esophageal cancer in older people. Eating vitamin D and calcium increases the risk of kidney stones. In one clinical trial, one group took a multivitamin tablet. The testers had a higher proportion of prostate cancers. [3] can not deny the important physiological role of vitamins, but these experiments also remind us from the side, the balance of nutrient intake is the most important, too far.
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