Clonfolic contains folic acid which is a member of the B group of vitamins. Like all vitamins, it cannot be made by the body, so it needs to be taken in your diet or as a supplement.
Folic Acid is present in certain foods (Fortified breads & cereals, broccoli, sprouts, green beans, oranges and grapefruit) but not in the concentrations sufficient enough for pregnancy so it should be taken in supplement form during this time.
Taking folic acid daily can help reduce the risk of having a baby with Spina Bifida by up to 70%