Hello, Welcome to HCM, Folic acid becomes necessary only if your diet is deficient in folic acid &/or there is previous history of baby born with neural tube defect. For prevention Folic acid tablet is prescribed to all pregnant women. Folic acid is present in sufficient quantity in all green leafy vegetables & citrus fruits. As most of the Indian women are anaemic, iron supplement is also given. Generally Calcium tablets are also prescribed, but you should not take it with iron, as it decreases absorption of iron, while vitamin C increases its absorption. If you consult the same Gynaecologist once again regarding your query your problem will be solved. Wish you & your wife good Health.