Appetite
The umbrella collects the brief biblical witness on bodily appetite kept in subjection — two anchor passages on the discipline of the body for the sake of higher loyalty.
Kept in Subjection
Daniel's refusal of the royal table is the long-form picture. Carried to Babylon and assigned a share of the king's dainties and wine, Daniel "purposed in his heart that he would not defile himself" with that food (Dan 1:8). He negotiates a ten-day trial of pulse and water with the steward. At the end of the trial "their countenances appeared fairer, and they were fatter in flesh, than all the youths who ate of the king's dainties," and the steward keeps them on pulse going forward (Dan 1:15-16). Appetite is not the master; the prior loyalty is.
Paul gives the principle in athletic register: "but I buffet my body, and bring it into slavery: lest by any means, after I have preached to others, I myself should be disapproved" (1Co 9:27). The body and its appetites are brought under the apostle's purpose, not the other way around.
The two passages frame the topic as discipline, not denial — the body is fed (pulse, water) and used (preaching, running, contending), but it is kept in its place. See also Temperance for the broader virtue.