We love using low sugar fruits in our green smoothies to help Drinking one green smoothie a day is one of the simplest ways to maintain a healthy diet. rule by using 3 cups of leafy greens and 2 cups of low sugar fruit. No, these fruits don't have added sugar—but you should still have a rough idea of much you're taking in each time you chow down on a smoothie or a fruit salad. Plus, it's got tons of healthy fats that will keep you satiated. These 6 low-sugar fruits will work on any diet! Fruit is both delicious and nutritious. . Heck, try whirling them into your post-gym shakes. higher intakes of vitamin C from fruits and vegetables can lessen the risk of coronary.