Typically, yes they are! But it depends on what you add into the smoothie along with the blueberries. If you add in a bunch of high sugar ingredients like frozen yogurt or ice cream, then you will end up with a smoothie that's more like a dessert than a healthy breakfast. But if you choose whole food, nutrient dense ingredients, then yes, your smoothie will be super healthy! This blueberry banana spinach smoothie has so many health benefits because in addition to the blueberries, this particular smoothie also has protein-rich Greek yogurt, potassium-packed bananas and nutrient-rich baby spinach (full of iron, magnesium and antioxidants) to round out the recipe! It's low in calories, low in fat, high in protein and high in fiber. You can enjoy this smoothie as a light breakfast, healthy dessert or post-workout snack for under 200 calories!