@Daniel13148, single folic acid tab comes in 5 milligrams (mg) e.g folic acid by Vitabiotics but the recommended dose for pregnant women is lesser then 5mg which is 400 microgrammes (mcg). Some prenatal vitamins av 400mcg combined with other vitamins though taking 5mg daily is still considered ok. Do ur research well, no doctor will ask u to take 500mg of folic acid tab, that 100 pieces of 5mg tablet.

Folic acid is 500mg not mcg

500mg or 500mcg. If its 500 mcg twice daily, its not too much.