the five vitamin B1 that people are most likely to lack are the most abundant in food products with germ and bran. Now the pasta has been refined. In this way, most of the vitamin B1 is lost in the processing. It's a pity. No wonder some nutritionists said: "in the past, there was rich vitamin B1 in the food of poor families. Now people have better conditions, but their nutrition level is not as high as that of the poor families before." Vitamin B2 mainly comes from animal liver, eggs, milk, meat, fish, green vegetables, beans, etc. In China, the content of vitamin B2 in the dietary structure is less, only half of the standard, especially in the off-season of vegetables, which is very serious. Therefore, vitamin 82 deficiency is common in China. Vitamin A, known as "bright eyes and bright teeth of the beautiful vitamin." This is because its main function is to maintain the healthy growth of skin, hair, bone and mucous membrane, and enhance vision and reproductive function. Vitamin A is only found in animal food. There is no vitamin A in plant food, but only the precursor of vitamin A - carotene that can be changed into vitamin A in human body. Vitamin C is the main raw material for the formation of intercellular substance. Its main function is to connect cells together, maintain the normal functions of teeth, blood vessels, bones and muscles, promote wound healing, and enhance the insensitivity to diseases. The most common deficiency of vitamin C is gingival hemorrhage and subcutaneous punctate hemorrhage. Vitamin D deficiency usually occurs in infants, pregnant women and lactating women from two months to one year old. Once children lack vitamin D, they are easy to get rickets. The easiest way to supplement vitamin D is to get in the sun. Because there is a substance in human skin called "7-dehydrocholesterol", which can be converted into vitamin D under ultraviolet irradiation and used by human body. Of course, taking more cod liver oil, egg yolk and liver is also very beneficial.
These five vitamins are the most deficient in human body
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