Nutrition plays a key role in maintaining a healthy environment where your baby can develop and grow. It also helps to ensure that you remain healthy while you are pregnant. Pregnancy intensifies nutritional needs for women because your baby receives his or her nourishment from you. Most doctors agree that increasing daily calorie intake by about 300 calories and incorporating nutrient-dense foods, such as proteins, whole grains, fruits, and vegetables, are the first steps toward healthy nutrition for you and your baby. In addition, vitamin supplements complement your dietary intake and help to ensure a well-balanced approach to your nutrition.