Other Factors affecting Glycemic Index |
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Fiber content | Fiber, especially soluble fiber, slows down the digestion of starch, therefore high fiber foods have lower glycemic index. For instance, apples with skin have a lower glycemic index than apples without skin. |
Fat, Protein | Fat and protein slow down foods from leaving the stomach, therefore foods containing fat and protein such as beans and milk have lower glycemic index values. |
Acid content | Lemon juice or vinegar can also lower the glycemic index. |
Maturation | Unripened fruits have lower glycemic index values than ripe fruits. |