Glycemic index is the increment area under blood glucose response curve of 50 g carbohydrate, portion of a test food expressed as a percent of the response of the same amount of carbohydrate from a standard food taken by the same subjects. It is usually determined by measuring the effect of 50 g available carbohydrate as test food on blood glucose when compared with that of a control food which is usually glucose of white bread. Glycemic Index (GI) of food has been classified as 0-50 low, 56-59 as medium and >70 as high. The top open access journals are peer reviewed scholarly journals of Obesity & Weight Loss Therapy. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community. These journals are indexed with all their citations noted.