Women of pregnant age know that folic acid supplements are necessary if they want to have children until three months after conception. It can be seen that folic acid must be supplemented. So, how much folic acid a day to eat is normal, supplement folic acid excess is harmful to your health? Let's get to know it.

Folic acid is a water-soluble B vitamin. In elderly patients, vitamin B12 deficiency should be excluded before using the drug. For example, vitamin B12 deficiency can increase the burden of vitamin B12 and neurological symptoms. Taking large doses of folic acid may lead to serious irreversible neurological damage.

It belongs to grade A in pregnancy safety classification, because folic acid can affect the absorption of trace element zinc, taking too much folic acid will lead to zinc deficiency, for pregnant women, it may cause fetal growth retardation and increase of low birth weight infants. Pregnancy women can prevent medication, because folic acid deficiency can cause damage to the fetus, leading to neural tube defects. However, women of childbearing age with folic acid-dependent tumors should be cautious.

Long-term high-dose medication of gastrointestinal tract can appear oral odor, fear of food, nausea, abdominal distension and other symptoms, the nervous system can appear blurred consciousness, irritability, sleep disorders, urinary system appears yellow. Folic acid causes fewer toxic symptoms, and excessive doses can be excluded from the urine in vitro, so there are fewer adverse reactions, but there are still rare allergic reactions.

In general, folic acid is not the more the better, let alone excessive. Folic acid supplementation during pregnancy should go to the hospital for information, follow the doctor's advice to eat folic acid, do not blindly follow the wind to eat large amounts of folic acid, which may cause physical discomfort.