Normal blood sugar varies from person to person, but a normal range for fasting blood sugar (the amount of glucose in your blood six to eight hours after a meal) is between 70 and 100 milligrams per deciliter.For most individuals, the level of glucose in the blood rises after meals.A normal blood-sugar range after eating is between 135 and 140 milligrams per deciliter.These variations in blood-sugar levels, both before and after meals, are normal and reflect the way that glucose is absorbed and stored in the body.or most individuals, the level of glucose in the blood rises after meals. A normal blood-sugar range after eating is between 135 and 140 milligrams per deciliter.