Ensure Muscle Health Revigor™ Creamy Milk Chocolate Shake. Targeted, specialized nutrition. To help rebuild muscle and strength naturally lost over time. Amino acid HMB metabolite. Protein 13g. 24 vitamins & minerals. Natural and artificial flavor. M. #1 doctor recommended brand. Abbott. Targeted nutrition to help rebuild muscle and strength naturally lost over time. You can lose 8% of your muscle every 10 years after you turn 40. Ensure muscle health has Revigor™ (source of HMB, an amino acid metabolite) and also is an excellent source of protein to help rebuild muscle and strength naturally lost over time. Call 1-800-986-8727; or visit ensure.com for more information. 2010 Abbot Laboratories. Gluten-free; suitable for lactose intolerance.