Folate (Vitamin B9) helps prevent severe birth defects and supports red-blood-cell and brain function — but most women start too late. Experts say eve ...

Medically reviewed by Aviv Joshua, MS, RDN Key Takeaways Vitamin B9 (folate or folic acid) is one of 13 essential vitamins your body needs to function properly.Folate comes from foods like leafy ...

The recommendation to use leucovorin to treat autism seems to stem from a theory that low levels of folate in the brain can lead to a condition called cerebral folate deficiency.