Can ordinary people eat folic acid for a long time?

No, because there are isomers of natural folic acid, the absorption rate is low, 60%, so eating vegetables and fruits will not lead to excessive folic acid, while eating less vegetables during pregnancy is easy to lack folic acid.

Normal people don't need to deliberately supplement folic acid. Normal food will contain trace amounts of folic acid.

Unless it is pregnant or a woman who drinks alcohol for a long time, it is normal and unnecessary to take special supplements. Excessive folic acid will also hinder the absorption of vitamin B 12, lead to the degeneration of the nervous system, cause pathological changes of the nervous system and aggravate cognitive damage. Excessive folic acid intake in children may also hinder the absorption of iron. It will also aggravate anemia.