Folic acid is a B vitamin. It helps the body make healthy new cells. Everyone needs folic acid. For women who may get pregnant, it is really important. Getting enough folic acid before and during pregnancy can prevent major birth defects of her baby's brain or spine.
MTHFR polymorphism refers to variations in the MTHFR (methylenetetrahydrofolate reductase) gene. This gene provides instructions for producing the MTHFR enzyme, which is involved in the metabolism of folate (vitamin B9) in the body.
Foods with folic acid in them include
Leafy green vegetables Fruits Dried beans, peas, and nuts Enriched breads, cereals and other grain products
folate antagonists (e.g. carbamazepine) doubles the incidence of MM