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Chen Xia, Department of Nutrition, Hunan Maternal and Child Health Hospital
"A pregnant mother is comparable to a national treasure".
What are the functions and characteristics of vitamin A?
The main functions of vitamin A are to maintain normal visual function, cell growth and differentiation, maintain skin and body protective layers (such as lungs, intestines, etc.
However, vitamin A is a fat-soluble vitamin, and fat-soluble vitamins are characterized by easy accumulation in the human body
What foods does vitamin A come from?
Strictly speaking, vitamin A should be called vitamin A, which refers to a large class of substances with the biological activity of retinol, including formed vitamin A and provitamin A (the most important for the human body is beta-carotene) and its metabolites
The formed vitamin A is mainly found in animal liver and egg yolk.
How much vitamin A does a pregnant mother need?
There are two commonly used units of vitamin A, namely ugRAE (retinol equivalent), IU (international unit), 1IU=0.
Most vitamin A supplements on the market use IU international units
According to the dietary nutrient reference intake of Chinese residents, the recommended intake of vitamin A in the first trimester is 700ugRAE (ie 2333IU), and in the second and third trimesters it is 770ugRAE (ie 2566IU), but the daily intake of vitamin A throughout pregnancy should not exceed 3000ugRAE (ie 10000IU)
How can pregnant mothers take vitamin A safely?
From the perspective of vitamin A content, eating 15 grams of pork liver in early pregnancy can get 745ugRAE of vitamin A, which can already meet the requirement; in the middle and late pregnancy, it is easy to meet the standard by eating a little vegetables and fruits, which is why China The reason why the Residents' Dietary Guidelines recommend eating pork liver once a week during pregnancy
Therefore, in general, pregnant mothers with a balanced diet and a variety of food types will not be deficient in vitamin
This article is scientifically checked by Mu Yibing, deputy chief physician of the Nutrition Department of Hunan Maternal and Child Health Hospital
