In order to realize the contribution of low glycemic index diet in causing weight loss, it is necessary to be aware firstly of the fact that what is actually meant by glycemic index. The term glycemic index refers to a particular form of measurement between the amounts of food consumed by an individual in terms of carbohydrates that would contribute suitably to an individual's blood sugar level. It is calculated that the higher the glycemic index, the more a person is endangered towards contracting fatal diseases. Obesity is known to make a person ore susceptible to high blood pressure and other ailments like diabetes and cancer. A high glycemic index endangers a person equally to these diseases and such diets are also responsible for increasing blood sugar kevels. Therefore, a low glycemic diet is considered to be the most effective in order to ensure efficient weight loss and at the same causing less harm to the body. One of the most significant ways by which it is possible for one to ensure weight loss by means of a having a low glycemic diet is that such diets enable the stomach to remain full for longer periods of time as the breaking down of the food components take a huge amount of time and therefore under such circumstances weight loss is evident due to controlled food consumption. Unlike so in case of high glycemic diets, weight loss is nil and blood sugar levels are more often extremely high. In case of low glycemic index diets it is necessary to remember that since the breaking of the consumed food particles take longer time, the rise in blood sugar level is slow and steady and therefore is responsible for causing significant weight loss in obese individuals.

There are various weight loss diet programs which fall under the category of low glycemic index diets and are therefore beneficial for weight loss. these include the famous Metabolic diet, Atkins' diet etc and one of the most crucial factors to be borne in mind in case of low glycemic diets is that the release of sugar or glucose in the blood stream should be slow to aid weight loss. In case of low glycemic diets, fruits, vegetables, salads, whole grained breads, cereals etc are highly recommended while potato should be avoided. The low glycemic diet is beneficial not only in aiding weight loss but also for maintaining glucose levels in the body and thus aiding diabetes patients.