Fruits and vegetables contain soluble and insoluble fiber in varying proportions. When you eat soluble fiber, it absorbs water to form a gel-like mass, which helps you feel full and provides other health benefits. It prevents a surge in blood sugar after you eat by slowing down the absorption of carbohydrates.
If the blood glucose level falls to dangerous levels (as in very heavy exercise or lack of food for extended periods), the Alpha cells of the pancreas release glucagon, a hormone whose effects on liver cells act to increase blood glucose levels.
Hormone secreted by the pancreatic alpha cells. Glucagon increases the blood glucose level by stimulating the liver to change stored glycogen to glucose. Glucagon opposes the action of insulin. It is used as an injection in diabetes to reverse hyopglycemic reactions and insulin shock.