Diabetic diet refers to the diet that is recommended for sufferers of diabetes mellitus. There is much controversy regarding what that diet ought to consist of. The diet most often recommended is high in dietary fiber, soluble fiber, but low in overweight ( saturated overweight) & low in sugar. Recommendations of the fraction of total calories to be obtained from carbohydrate are usually in the range of 40 to 65%, but recommendations can vary as widely as from 16 to 75% . Diabetics may be encouraged to reduce their intake of carbohydrates that have a high glycemic index (GI), although this is also controversial. (In cases of hypoglycemia, they are advised to have food or drink that can raise blood glucose quickly, such as lucozade, followed by a long-acting carbohydrate (such as rye bread) to prevent risk of further hypoglycemia.) However, others query the usefulness of the glycemic index & recommend high-GI foods like potatoes & rice. It's been claimed that oleic acid has a slight advantage over linoleic acid in reducing plasma glucose.