It adds: “Most of the glucose in your body comes from the food you eat. When food is digested, sugar enters your bloodstream. Insulin allows sugar to enter your cells — and lowers the amount of sugar in your blood.
“Insulin is produced by a gland located behind the stomach called the pancreas. Your pancreas sends insulin to your blood when you eat.
“When your blood sugar level starts to drop, the pancreas slows down the secretion of insulin into the blood.
“When you have prediabetes, this process doesn’t work as well. As a result, instead of fueling your cells, sugar builds up in your bloodstream.”