Leptin
Test Code: MTC00629Leptin is a hormone that helps regulate appetite and signals the brain when the body has enough energy, reducing the desire to eat. It plays a major role in maintaining natural body weight and energy balance.
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Leptin is a hormone secreted by fat cells that plays a vital role in managing energy balance by controlling hunger and metabolism. When the body’s fat stores are sufficient, leptin levels rise and signal the brain — particularly the hypothalamus — to reduce appetite and increase energy expenditure. This mechanism helps maintain a stable body weight. However, when leptin resistance occurs, the brain no longer responds properly to leptin’s signals, leading to constant hunger and weight gain even when leptin levels are high. Low leptin levels may cause poor appetite or unintended weight loss, while chronically high levels are linked to metabolic disorders such as insulin resistance and inflammation. Testing leptin provides valuable insights into the relationship between weight regulation, appetite control, and metabolic health.
