Smoothies can be a healthy breakfast or snack food. Depending on the ingredients, they can also be high in calories. You can make a basic banana smoothie with yogurt, milk and banana, or add other ingredients to increase the nutrient content and vary the flavor. Choose low-fat versions of dairy products to limit the saturated fat and calories in your smoothie.
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Measuring the Mix
Use 4 ounces of plain, low-fat yogurt, a cup of skim milk and a medium banana, and your smoothie will have 259 calories. Swap the skim milk for almond milk, and you'll save 23 calories. But if you use whole milk, the calories in your smoothie increase by 66. A cup of strawberries adds 53 calories, a tablespoon of unsweetened cocoa powder adds 11 calories and 2 tablespoons of peanut butter will add 188 calories. Other nutritious smoothie add-ins include ground flaxseed, with 37 calories per tablespoon, and spinach, with 7 calories per cup. If you want a sweeter smoothie, each tablespoon of honey adds 64 calories.