When glucose is being used up and not replaced from food intake, the blood sugar level can be maintained by synthesizing it from smaller molecules such as pyruvate or lactate. this process is called gluconeogenesis. which organ is principally responsible for supplying glucose to the rest of the body when glucose reserves are low?

The liver is the organ responsible for the production of glucose when glucose levels are low. It also controls glucose level when it is too high. During absorption and digestion of food, carbohydrates are broken down into glucose. excess glucose is converted into glycogen, the storage form of glucose, via the liver's hepatic cells in a process called glycogenesis.