Glycemic Index The GI or glycemic index is a measure of how fast a food is likely to raise your blood sugar and this can help maintain these levels in blood.

If your blood sugar is low and continuing to drop during exercise, you would prefer to eat a carb that will raise your blood sugar quickly.
If you would like to keep your blood sugar from dropping during a few hours of mild activity, you may prefer to eat a carb that has a lower glycemic index and longer action time.
If your blood sugar tends to spike after breakfast, you may want to select a cereal that has a lower glycemic index.
Glucose is given an arbitrary value of 100 and other carbs are given a number relative to glucose.
Slower carbohydrates (lower numbers) are helpful for preventing overnight drops in the blood sugar and for long periods of exercise.
The purpose of the glycemic index is for diabetics who need to be concerned about their blood sugar levels on a daily basis.
Athletes who need to restore their blood sugar levels after an athletic performance.

Dieter should concentrate on having a diet with a foundation in the grains, breads and cereals group (six - eleven servings each day), five or more servings from the fruits and vegetables group, two servings from the milk group and two servings from the meat group. For weight control it is important to use the Food Guide Pyramid.

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