Glucagon

Definition

Glucagon is a hormone produced by the pancreas that helps regulate blood sugar levels by promoting the release of glucose from stored glycogen in the liver.

Scientific / Technical Definition

Glucagon is a peptide hormone, composed of 29 amino acids, secreted by the alpha cells of the pancreatic islets. Its primary role is to maintain glucose homeostasis by stimulating glycogenolysis and gluconeogenesis in the liver, thus increasing blood glucose levels. It acts in opposition to insulin, which lowers blood glucose levels.

Benefits

• Helps maintain steady blood sugar levels during fasting or between meals.
• Supports the body's energy balance by mobilizing glucose resources.
• Promotes liver health by regulating glycogen metabolism.

Examples

• The hormone is naturally produced by the body and not directly consumed through food. However, maintaining a balanced diet supports healthy glucagon function.

Additional Information

• Importance: Glucagon is vital for preventing hypoglycemia, especially in individuals who have conditions affecting insulin production or glucose metabolism.

Related Terms

• Insulin
• Blood glucose
• Glycogenolysis
• Pancreas

References

• Glucagon: Role in the Body and Diabetes Management
• The Biochemical Role of Glucagon in the Human Body