Too much vitamin A—above 10,000 IU daily or 25,000 IU weekly—“poses a risk for congenital disabilities and anomalies in early development,” according to Igbinosa. She advises women who are pregnant or trying to conceive to speak with their healthcare provider if they believe their diet may include a high amount of vitamin A-rich foods, specifically liver and liver products.
That being said, “most prenatal vitamins contain vitamin A and vitamin D, as they are vital to fetal growth,” states Igbinosa. She advises moms-to-be to consume the recommended daily amounts for adults, which are 770 IU and 600 IU respectively. You may already be getting some (or most) of these allowances through your diet, so check with your healthcare provider to determine how much you need to add to your daily intake.