The GI Diet or the low-glycemic index diet was developed by Dr. David J. Jenkins, professor of nutrition at the University of Toronto. The GI Diet is a food regime based on eating foods that are low in the glycemic index. The glycemic index is a number calculated based on how long it takes the human body to absorb carbohydrates. The simplest sugar to absorb is glucose, thus glucose is the basis for calculating the glycemic index of other foods. Whenever you eat sugar, or glucose, there is a quick surge in blood glucose levels that fade after a few hours. Complex carbohydrates take longer to be absorbed and do not cause a sudden surge in sugar blood levels.
Some of the worst foods that have a high glycemic index are bread, baked potatoes, breakfast cereal while some of the foods with the lowest glycemic index are low-fat yogurt, whole grain bread, apples, whole wheat pasta and vegetables and fruits. All junk food has a very high glycemic index. Examples are cake, pastries, cookies or candy.
Foods that have a low glycemic index can help you fight off heart disease and diabetes. If you choose to benefit from the GI way of eating, you can still enjoy tasty foods while also losing weight, you will have an increased energy level, less hunger feelings or cravings for sugary foods, the ability to eat more food when you desire as there are no strict calorie reductions. However, the GI diet only takes into account just one factor. People may react differently to different foods, some are allergic to peanuts or fish, so before choosing such a diet, make sure you consult your physician.