A strawberry and banana juice is good for you because strawberries are rich in fiber, vitamins and antioxidants. They are among the top 20 most antioxidant-rich fruits. Bananas are a good source of fiber, potassium and magnesium. Your body digests the sugar in a banana more slowly than refined sugars, so you get lasting energy, rather than a sugar rush and crash. Naturally-sweet bananas are a healthy way to satisfy your craving for sugar. When you’re craving a sweet frozen treat, this strawberry banana juice is a delicious option!