You should eliminate all sugar from your diet.
The body needs sugar. Glucose, the main sugar in the blood and a basic fuel for the body, is essential to the functioning of all cells, particularly brain cells. But you don't need to eat any sugar to supply your body with glucose. All you need is complex carbohydrates, also known as starches, which are found in foods derived from plants - grains, vegetables, and fruits. Starchy foods such as breads, rice, pasta, potatoes, cereals, corn or any food made with grain or flour, do not usually taste 'sweet', but they are changed into sugar through the process of digestion.