Puritan's Pride Folic Acid 400 mcg Tablets supports cardiovascular health in women and men. Folic Acid is part of a triad of B Vitamins - along with Vitamins B-6 and B-12 - that helps promote heart health. It's important to take a 400 micrograms folic acid supplementation during Pregnancy. Folic acid can help prevent birth defects known as neural tube defects, including spina bifida.