7. Blueberries And Blackberries

Here is another sweet treat you can look forward to. Blueberries and blackberries rank a bit higher on the glycemic index than sour cherries, but are still well within the range of low glycemic foods with GI scores of about 40.
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These fruits are also high in fiber and contain those important anthocyanins to prevent a blood sugar spike. One particular study found that adding blueberry to smoothies can improve insulin sensitivity in people who have insulin resistance.
