Leptin is a hormone produced by fat cells that signals the hypothalamus in the brain about our body fat level. When working properly, leptin helps maintain our body weight within a healthy range.
Related terms
Adiponectin: A protein hormone involved in regulating glucose levels and fatty acid breakdown.
Resistin: A hormone associated with obesity; it's believed to play a role in insulin resistance.
Obestatin: A peptide hormone thought to suppress hunger and decrease food intake.