Carbohydrates are sugars that break down inside the body to create glucose.
Glucose is moved around the body in the blood and is the primary source of energy for the brain, muscles, and other essential cells.
The healthy body attempts to regulate glucose levels by using a series of hormones – insulin and glucagon, which are produced by the pancreas gland.
Insulin lowers blood sugar levels by moving the glucose to the various parts of the body and aiding its absorption, excess glucose can be stored in the liver or in fat around the body.
Glucagon increases blood sugar levels by releasing glucose stored in the liver back into the bloodstream. Blood sugar levels are usually kept in check if the pancreas and liver are healthy and functioning normally.
Unlike protein and fat, carbohydrates are not essential to human life.
The body can produce glucose from protein and fat, however carbohydrates are the most convenient and quickest way for the body to produce energy.