Sunday, September 16, 2007

Glycemic Index - Where is your sugar

Keeping Your Body Energized
Healthy eating is more complex than adopting a low-carb, low-fat or high-fiber diet. It's important to understand how the food you eat affects your body, so you can provide balanced, sustained nutrition to keep going strong.

The glycemic index (GI) is a ranking of carbohydrates based on their immediate effect on glucose (blood sugar) levels. Glucose is assigned a value of 100, while other carbohydrates are ranked relative to glucose. Essentially, carbohydrates that break down rapidly during the digestive process have the highest GI values. The blood glucose response is fast. On the other hand, carbohydrates that break down slowly and release glucose gradually into the bloodstream have low GI values.

The GI index is an important consideration for a number of reasons, particularly with respect to the benefits of consuming low-GI foods:

Low-GI foods keep you fuller for longer.
Low-GI foods cause a smaller rise in blood glucose levels following meals.
Low-GI diets can help you lose weight.
Low-GI diets can improve the body's sensitivity to insulin.


And according to the authors of a 2002 study published in the American Journal of Clinical Nutrition, "sufficient, positive findings have emerged to suggest that the dietary glycemic index is of potential importance in the treatment and prevention of chronic diseases."

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