Sentinel Folic Acid 400mcg is a dietary supplement containing 250 tablets. Folic acid is a B-vitamin essential for cell growth and DNA synthesis. It's particularly important during pregnancy for fetal development and helps prevent birth defects of the brain and spine. Folic acid plays several vital roles in the body including supporting red blood cell formation, aiding in proper cell division, and contributing to normal homocysteine metabolism. It's especially recommended for women who are planning pregnancy or in early pregnancy stages. The 400mcg dosage aligns with common daily recommended intake for adults. As with any supplement, consult with a healthcare provider before use, particularly if pregnant, nursing, or taking other medications.