Ensure Enlive, Vanilla flavor, 350 calories per 8 fluid ounce (237 mL) Retail Bottle. ENSURE ENLIVE is designed to help rebuild strength and energy from the inside, with an ALL-IN-ONE blend to support muscle, bone, heart, immune, and digestive tract health. Ensure Enlive is specially formulated to help maintain and rebuild lean body mass and strength in patients recovering from illness, injury and surgery. For oral use. For supplemental nutrition. Recommend 2 servings per day in addition to a healthy diet.