VC generally refers to vitamin C. Pregnant women can take it, but they should supplement it in moderation. Vitamin C, also known as ascorbic acid, is a common water-soluble vitamin, and supplementation in moderation has no adverse effects on pregnant women and fetuses, and will have some benefits. Many pregnant women suffer from iron deficiency anemia and can take iron supplements along with vitamin C, which can promote the absorption of iron. In addition, vitamin C also has antioxidant effects. Since oxidative stress may lead to pregnancy complications such as gestational hypertension through many mechanisms, vitamin C can prevent and treat diseases such as gestational hypertension to some extent. In daily life, pregnant women can take vitamin C through fresh vegetables and fruits, mainly oranges and kiwis, etc. They can also take oral vitamin C tablets or multivitamins as prescribed by their doctors to supplement vitamin C. In the process of supplementing vitamin C, they should not take too much, because too much supplementation may cause side effects, the most common being gastrointestinal symptoms such as nausea and vomiting, and possibly scurvy. Therefore, if a pregnant woman’s iron deficiency anemia has been effectively corrected, she can stop taking vitamin C. It is recommended that pregnant women take multivitamins in the first three months of pregnancy, and if they supplement various vitamins separately, pregnant women need to take multiple drugs orally at the same time, and it is not easy to judge the ratio of taking them. Pregnant women should take vitamin C at intervals with other drugs to avoid drug interactions.