Glucerna SR is a complete, balanced low-calorie meal replacement and/or healthy snack alternative. It is formulated with slow release energy system shown to optimize the glycemic response, a healthy monounsaturated fatty acid (MUFA) lipid system, and fiber. Glucerna SR is sucrose-free. It ensures to have a balanced macronutrient ratio supporting optimum protein utilization. Glucerna SR Vanilla Powder is free of gluten & lactose-free.