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Excessive vitamin A
While vitamin A is essential for various bodily functions, such as maintaining healthy vision, a robust immune system, and proper fetal development, its excessive amounts can be harmful during pregnancy.
High vitamin A levels, especially from supplements, can increase the risk of congenital disabilities in the developing fetus. This is particularly concerning during the first trimester, when critical organ development occurs. Excessive vitamin A intake, especially in the form of retinol (found in animal-based sources), can cause liver toxicity in both the mother and the fetus. Overconsumption of vitamin A can negatively affect bone health in both the mother and the baby.