Glycemic Load = Glycemic Index/100 X Carbs per serving
Glycemic Load Of Watermelon = 4.3 (.72 X 6)
Watermelon has a glycemic index of 72 (which is considered high). 72 divided by 100 equals .72. But there’s only 6 available carbs in a serving of watermelon. So, 6 multiplied by .72 equals 4.3. That’s a very low GL, meaning it won’t raise your blood sugar very much.
Glycemic Load Of Chocolate Cake = 20 (.38 X 52)
Chocolate Cake has a glycemic index of 38 (which is low). 38 divided by 100 equals .38. Now multiply that by the available carbs in a single serving of cake (52) and you get a GL of 20! (which is very high)
While the glycemic index measures how fast a carbohydrate turns into blood sugar, it isn’t very useful when calculating actual meals. The glycemic load is a better indicator of the effects of certain foods on our blood sugar levels, especially for diabetics.
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