Also referred to as the glycemic index diet, GI diet, and low glycemic diet, it is the basis for many popular diet plans. Glycemic index measures carbohydrates. The index is a list of how blood sugar levels rise after you eat a small portion of a carbohydrate food. Originally, the index was developed as a tool to help diabetics manage blood sugar control. In theory, if it works to help control blood sugar in diabetic people, then it should work for weight control. Best Low-Carb Fruits are as under.
Berries: They’re all packed with antioxidants and vitamins and have GI generally low to mid-20's. Examples - Blueberries, strawberries, raspberries, blackberries, huckleberries, salmon berries, gooseberries.
Cherries: They are similar to berries in terms of their antioxidant value. They have a bit higher natural sugar content, but still very low-carb (GI: 22).
Pears and Apple: They’re low in sugar and contain a respectable amount of fiber. (GI: 38)
Citrus Fruits: Most citrus fruits are quite high in sugar, but grapefruits are not. In fact, their effect on blood sugar is less than apples and pears at only 25. Just don’t ruin a smart thing with a sprinkling of sugar on top! Grapefruit is excellent in salads, especially when paired with avocado slices.
Apricots and Peaches: With similar nutritional value as apples and pears, these stone fruits are a smart way to get a good dose of vitamin C and fiber. Avoid nectarines, which are much higher in sugar and are more akin to mangoes and papayas. (GI: 30s)
Figs: It seems to get lumped into the dates ‘n raisins category, but figs are just as low in sugar as strawberries, and are packed with fibers.