With 480 mg DHA per serving, Prenatal DHA generously fulfills the international expert-recommended daily intake for DHA, providing safe and effective omega-3 nutrition to moms and babies alike. We’ve added 400 I.U. vitamin D3 (cholecalciferol), the natural form of vitamin D produced by the body, for strong bones and mood support throughout all stages of pregnancy. Many concentrated fish oils on the market are in the ethyl ester molecular form, a synthetic fat with only about 30 years of history in the human diet. Nordic Naturals formulas are produced in true triglyceride form to ensure optimal absorption and results.