Blood sugar is officially called “blood sugar”. No man can without glucose, because it gives the body energy causes all muscles and organs work. Glucose comes from carbohydrates in the diet. Carbohydrates are not only sweet things like sugar and fruit, but also in some vegetables, milk, bread and potatoes and other starches. Of carbohydrates the body produces glucose, which is in the blood as blood and goes to all body cells for energy. But too much is not good. Normally, the body ensure that exactly enough insulin release to glucose in the blood processing. This keeps the blood sugar level is always within certain limits. When diabetes is balanced way.