Human body needs energy, which will come from food. Starches and sugars, known as carbohydrates, would be the most efficient energy solutions. In the gut, they're divided to glucose, which gets into the blood stream and it is delivered to different muscle and organs. Blood glucose is usually called blood glucose. The glucose levels concentration in healthy individuals varies from 60 - 90 mg/dL after fasting to not over 140 - 150 mg/dL one hour after a meal. This's referred to a normal blood glucose balance. It goes directlyto the baseline level two - 3 hours after a meal.