Naturally and artificially flavored. Contains no milk. Caffeinated. 160 calories per bottle. 20 g protein. Sugar/lactose free. 50% less fat than genuine Muscle Milk (4.5 g fat per 14 fl oz vs. 9 g fat per 14 fl oz). Muscle Milk Light provides nutrients found in natural milk that are important for maintaining muscle and bones. Contains 150 mg caffeine per bottle approx. equal to 1-1/2 cups of coffee. Gluten free. If you enjoy feeling dull, overweight and lethargic, put this bottle down, pick up that donut and prepare to cry your self to sleep on the couch again - good, you're still reading. Muscle Milk Light is a perfect grab and go option that provides an excellent source of protein, fiber, vitamins and minerals. We can't say it's magic in a bottle, but it's close. Drink. Evolve. Made in USA.