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Glycemic index, also called glycaemic index (GI), is a ranking system for carbohydrates based on their effect on blood glucose levels in the first two hours after eating. It compares carbohydrates gram for gram in individual foods, providing a numerical, evidence-based index of post-meal (medically called: postprandial) glycemia. The concept of glycemic index was developed by Dr. David J. Jenkins and colleagues in 1981 at the University of Toronto.

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  • Glycemic index
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  • Glycemic index, also called glycaemic index (GI), is a ranking system for carbohydrates based on their effect on blood glucose levels in the first two hours after eating. It compares carbohydrates gram for gram in individual foods, providing a numerical, evidence-based index of post-meal (medically called: postprandial) glycemia. The concept of glycemic index was developed by Dr. David J. Jenkins and colleagues in 1981 at the University of Toronto.
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abstract
  • Glycemic index, also called glycaemic index (GI), is a ranking system for carbohydrates based on their effect on blood glucose levels in the first two hours after eating. It compares carbohydrates gram for gram in individual foods, providing a numerical, evidence-based index of post-meal (medically called: postprandial) glycemia. The concept of glycemic index was developed by Dr. David J. Jenkins and colleagues in 1981 at the University of Toronto. Glycemic index has been described in these words: "The glycemic index (GI) is a ranking of carbohydrates on a scale from 0 to 100 according to the extent to which they raise blood sugar levels after eating. Foods with a high GI are those which are rapidly digested and absorbed and result in marked fluctuations in blood sugar levels. Low-GI foods, by virtue of their slow digestion and absorption, produce gradual rises in blood sugar and insulin levels, and have proven benefits for health. Low GI diets have been shown to improve both glucose and lipid levels in people with diabetes (type 1 and type 2). They have benefits for weight control because they help control appetite and delay hunger. Low GI diets also reduce insulin levels and insulin resistance."
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