Nutrition shake (Recommended 2 bottles per day as part of a healthy diet). Natural and artificial flavor. No. 1 doctor recommended brand. Muscle - NutriVigor & protein. Heart - Omega 3's (650 mg ALA) to support heart health. Immune - Prebiotics (To help promote digestive tract health) & antioxidants (vitamins C, E & selenium). Bone - Calcium & vitamin D. The right nutrients in the right amounts to help you stay strong. Ensure Complete, the best of Ensure in one simple choice for balanced nutrition and targeted muscle, heart, immune and bone support. Call 1-800-986-8727, or visit Ensure.com for more information. Gluten-free. Suitable for lactose intolerance. Not for people with galactosemia.