Spinach is the star in this creamy smoothie, and for good reason ??? with just one 16-ounce serving, you will be getting your entire Recommended Dietary Allowance of vitamin A (great for healthy skin, hair, and eyes) and bone-building vitamin K, as well as an impressive amount of essential nutrients like manganese, potassium, and vitamin C. This 300-calorie smoothie is a good source of protein, maki