Carbohydrate Metabolism

Once the food is start digesting, the first nutrient that is extracted out is glucose or sugar and released into the blood stream for energysing the body cells calles as glucose metabolism.

What is Glucose / Carbohydrate metabolism

Once the food we ate reaches stomach, glucose metabolism begins with first glucose is separated and released into the blood stream and thus glucose level in blood rises.
 

Pancreas response to rising blood glucose level by immediately releasing insulin, proportional to the level of glucose in blood. Human Insulin is a chemical messenger (a hormone).

Insulin in blood comments

• liver to stop releasing glucose into the blood-stream
• body cell to start consuming glucose. 

After necessary glucose consumption is completed and if there is any excess glucose still available in the blood-stream then liver start converting this excess glucose in to glycogen and stored it for future requirements.

If we are not having our food in time and the body cells needs energy then liver converts back stored glycogen in to glucose and releases it in to the blood stream.

Glucose metabolism and diabetes
If there is any problem or defect in the glucose metabolism; whether it is glucose absorption, insulin secretion, glucose utilization, glucose storage or releasing stored glucose. This minor defect in glucose metabolism will slowly develop diabetes.