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.
1 Cortisol: This adrenal cortex hormone is released by the adrenal gland in response to a feeling of stress. 2  To increase the glucose level in blood, carrying out the metabolism of fats, carbohydrates, and proteins, and suppressing the immune system are important functions of cortisol.