Is vitamin A safe in pregnancy and what limits should I know?
- Answer: Yes, vitamin A is safe and important during pregnancy, but the form and dose matter. Vitamin A supports fetal growth, vision, immune health, and organ development, but too much preformed vitamin A can be harmful in pregnancy. The main concern is high-dose retinol or retinyl ester forms, which can increase the risk of birth defects when taken in excess. Beta-carotene, the plant-based precursor form of vitamin A, is generally considered safer because the body converts only what it needs. A prenatal with pregnancy-appropriate vitamin A is typically safe, but avoid stacking additional vitamin A supplements, cod liver oil, or liver-based supplements unless your healthcare provider approves them. When evaluating a label, check both the total dose and whether the source is retinol or beta-carotene.
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Source: Vitamin A and Pregnancy: A Narrative Review
