Smoothies are a superb way to get the added punch of nutrition into your diet. These are the best probiotic smoothies which are not high in sugar or calories since berries are not as sugar-rich as other fruits. They are sweetened with a dash os stevia, which is a natural sweetener from the stevia plant. These anti-oxidant rich berry cocktails are a refreshing drink and health tonic, all in one glass. They make a perfect afternoon cooler or, for that matter, any other time of the day.