Stomach volume occupancy

"Stomach volume occupancy" refers to the **physical capacity of the stomach to hold food and liquid**, rather than a discrete molecular entity such as a receptor, enzyme, or transporter. The human stomach is highly distensible; its resting empty volume is about the size of a fist but can expand to accommodate up to 4 liters in extreme cases[3][7]. The degree of stretch sends signals via nerves in the stomach wall to the brain's hypothalamus, contributing to sensations of fullness and satiety[7]. This physiological property plays an important role in regulating meal size and caloric intake. Increased fasting gastric volumes are associated with obesity and certain eating disorders like bulimia; conversely, reducing functional gastric capacity—through bariatric surgery or pharmacologic agents that slow gastric emptying—can reduce calorie intake by promoting earlier satiation[1]. However, "stomach volume occupancy" itself is not considered a therapeutic target at the molecular level but rather describes an anatomical/physiological state influenced by multiple factors including hormones (e.g., ghrelin), neural input, mechanical properties of smooth muscle tissue, and medical interventions[5][7]. In summary: "Stomach volume occupancy" is **not** a canonical drug target such as a receptor or enzyme. It represents an anatomical/functional concept relevant for understanding appetite regulation but does not correspond to any specific molecule suitable for direct pharmacological targeting.

Modulation of stomach volume through hormonal or surgical/endoscopic interventions to influence satiety and caloric intake[1]