Precautions for folic acid supplementation during pregnancy
Women need to supplement folic acid before pregnancy and during early pregnancy. However, due to the specificity of folic acid, experts suggest that the intake of vitamin C in the daily diet may destroy folic acid, and the two are best separated by a certain period of time.
Folic acid is unstable in acidic solution
"Folic acid is not stable in acidic solutions, but relatively stable in alkaline and neutral solutions. Folic acid is easily destroyed in the acidic environment formed after vitamin C supplementation. Therefore, it is better to separate them from each other for a certain period of time. "Yang Wenjiao, a state-level public nutritionist, told reporters.
Pregnant women can start supplementing folic acid 3 months before pregnancy until about 3 months of pregnancy. In fact, folic acid is widespread in nature, but folic acid is more likely to be lost due to heating, improper storage, or improper cooking methods. Therefore, for pregnant women, the intake of folic acid in the normal diet may be insufficient and additional supplementation is needed. Early pregnancy is an important period of fetal neurodevelopment. Folic acid deficiency can cause fetal neural tube malformation.
Relatively speaking, folic acid is a substance that pregnant women need to pay special attention to because the demand for folic acid is higher for pregnant women than for ordinary people. When the baby develops in the mother's body, the brain and nervous system develop rapidly and needs a lot of folic acid. In addition, compared with the previous diet, modern people's intake of fruits and vegetables may be insufficient, which is an important reason for pregnant women need to add folic acid.
In general, if folic acid is insufficient in pregnant women, there is usually no obvious symptom alone, because folic acid deficiency is generally associated with other symptoms. For example, folate deficiency may cause anemia, but if pregnant women suffer from folate deficiency anemia, It shows that the lack of folic acid in the body is more serious. If pregnant women have adequate folic acid supplements, the chances of neonatal illness and neurodevelopmental disorders will be greatly reduced.
Vitamin C is good for absorption of iron and calcium
Vitamin C promotes plant-derived iron absorption. In the daily diet, the iron contained in animal foods is heme iron, which is relatively easy to absorb. The iron in plant foods is non-heme iron and needs to be assisted by vitamin C to absorb it better. Vitamin C can also promote the absorption of calcium, which is conducive to fetal bone development. The content of vitamin C in citrus fruits, kiwifruit, jujube, green pepper, bitter gourd and potatoes is relatively abundant. If you can ensure that the diet is reasonable and balanced, it is not recommended to add additional vitamin C.
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