Natural & Artificial Flavor. Pregnancy and nursing create unique nutritional demands on a woman's body. That's why the makers of Ensure, the nutritionist-recommended brand, created Ensure Healthy Mom Shakes and Snack Bars. Use as a convenient snack anytime and anywhere. Designed to complement your prenatal vitamin. Fortified with protein and essential vitamins and minerals such as iron and calcium. Ensure Healthy Mom products are a delicious way to help get the nutrition your body needs at this special time.