Sentinel Folic Acid 400mcg is a dietary supplement containing 250 tablets of folic acid, a B-vitamin essential for cell growth and DNA synthesis. It is particularly important during pregnancy for fetal development and helps support red blood cell formation and immune system function. Folic acid is crucial for maternal tissue growth during pregnancy and should be taken from the time contraception is stopped through the first 12 weeks of pregnancy. This supplement contributes to normal blood formation, amino acid synthesis, and helps reduce tiredness and fatigue. The 400mcg dosage is commonly recommended for adults, especially women of childbearing age. As with any supplement, consult with a healthcare provider before use, particularly if pregnant or nursing.