Glycemic index is the index, which relates to the measurement or identification of impact of food on the blood sugar level of humans. Different types of foods have different impact on blood sugar level; some may raise it more than others may. Foods that break down quickly during the process of digestion have the highest glycemic index and they are also known as dietary glycemic index. Glucose, a type of sugar, which forms after breaking of food in the body, is the main source of energy to human body. Glycemic index helps in measuring that how fast the glucose travels and how a food affects blood glucose level. Foods with high index value raise blood sugar level more as compared to foods with low glycemic index value.

Health is a concern for all today, whether it is about child's health or an adult's health almost everyone today is suffering from one or the other problem, which may include diabetes, high blood pressure, and obesity. Among all the above problems, obesity is the major one. Having a low sugar level or having a low glycemic index food is like a treatment to reduce blood sugar level, which apparently helps in the treatment of epilepsy. Dietary fiber also helps in reducing glycemic index. So having a high dietary fiber diet, will help in reducing blood sugar level. Ranking is given from zero to 100. Eating pure glucose will have a ranking of 100. Food with the index ranking of 95 will give glucose as it is having a pure glucose but the food with index rating of 20 will not raise sugar level that much.

Now, body of different people reacts differently to a food that is why glycemic index cannot be generalized to one, it is different for different people. Foods that have high carbohydrate content have high glycemic index and respond immediately to blood while foods with low glycemic index reacts slowly and gradually with the blood. Pasta and potatoes are examples of food items, which have high glycemic index. Brown bread, soybean etc. are examples of foods with low glycemic index.

A proper level of glucose is to be maintained if that is not done then that person feels weak who have very low level of glucose. People tend to stop eating food with carbohydrates in order to lose their weight, because of this, their glucose level is very low, and they feel weak.

Foods with low glycemic acid are:

Mixed grain, pumpernickel, soybean, lentils, all bran, apple, milk, yogurt, whole wheat, frozen green peas, chilies, lettuce, green beas, onion, red pepper, raw carrot, broccoli etc. Vegetables include sweet corn, cauliflower, mushroom, cabbage, tomatoes, prunes, plums, cherries, coconut and kiwi. Coconut milk, peach, canned fresh juice, orange, tomato soup, strawberries, spaghetti, brown rice, yam, soy milk, whole milk and skimmed milk are some of the examples of foods with low glycemic index. In addition, custard, pearled barley, sweet potato, sponge cake, nutella, walnuts, jam, corn chips, cashew nuts, peanuts, nuts and raisins are included in this list.