Trying to get pregnant? Make sure you know the bottom line on baby-making—what you don't understand can affect your bub-to-be's health.
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However, there are a few potential pitfalls with supplements you don’t face with dietary sources of vitamins and minerals. (One notable example: Supplementing more than 10,000 IUs of vitamin A may cause serious birth defects.) So stick to a prenatal supplement your doctor prescribes, never take more than 100 percent of the RDA for any nutrient, and don’t short-change your diet by relying on pills instead of fresh foods. That way, you know you’re getting everything your growing baby needs.