A well-planned vegetarian diet can meet current recommendations for all vital nutrients, including protein, omega-3 fatty acids, iron, zinc, iodine, calcium, and vitamins D and B-12.
The American Dietetic Association contends that carefully planned vegetarian diets, including vegan diets, are healthful and nutritionally sufficient for individuals of all ages, including pregnant or lactating women, infants, children, adolescents, and athletes. During pregnancy, adherence to a nutritionally adequate vegetarian diet can lead to positive health outcomes for both the mother and infant.