The glycemic index, glycaemic index, or GI is defined as a measure of the effects of carbohydrates on blood sugar levels. Since Foods have a high GI caused carbohydrates that break down quickly during digestion and released glucose rapidly into the bloodstream. On the other hand, foods with a low GI have significant health benefits, because theirs carbohydrates break down more slowly, release glucose more gradually into the bloodstream. The concept was developed by Dr. David J. Jenkins and colleagues[1] in 1980–1981 at the University of Toronto in their research to find out which foods were best for people with diabetes.
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Effects of Low GI Diet on the Prevention and Management of Diabetes Type 2
There is still intense investigation on the mechanism by which low GI foods offer a protection against diabetes type 2. Studies have shown that a diet based on low GI foods do not affect insulin sensitivity. However, an individual that has been under a low GI diet shows an increased secretion of insulin when ingested a large amount of glucose compared with an individual that has consumed a high GI diet.
These results demonstrate that the effect of low GI diet is not on the insulin sensitivity but, on the activity of beta -cells. And although it is still unclear how this mechanism is produced, the effect is a favorable one because a decrease in beta-cells activity is an indicative for the development of diabetes type 2.
In addition, the individual with diabetes needs to clear out the toxic effect of glucose by an appropriate absorption of this sugar. Glycemic responses to low GI foods that have been referenced to each individual are not expected to change between a normal and a diabetic subject. However, because a diabetic presents a higher glucose concentration than a normal subject, the net reduction of glucose toxicity elicited by a low Glycemic index diet in a diabetic subject is larger.
The key factor to effectively prevent diabetes type 2 is to increase the responsiveness of pancreatic beta insulin will eventually exhaust the sensitivity of this pathway to effectively secrete insulin when needed. A Low Glycemic Index diet is essential for a diabetic in order to maintain a normal glucose level.
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The Low Glycemic Index Diet
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Permanent Weight Loss & Disease Prevention
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