Nutritional recommendations for pregnancy emphasize an increased need for calories, protein, calcium, iron, folic acid, and the omega-3 fatty acid docosahexaenoic acid (DHA). Public health campaigns have succeeded in creating widespread awareness of these critical prena¬tal nutrients and the risks associated with deficiencies. Until recently, however, the essential nutrient choline has been largely ignored in scientific, clinical, and public health discussions about prenatal nutrition.

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