A glutton is someone who habitually eats and drinks to excess — consuming far beyond hunger or need, driven by appetite rather than nourishment. The word carries moral judgement inherited from the Christian tradition, where gluttony ranks among the seven deadly sins: the glutton is not merely a big eater but one whose indulgence is disordered and wasteful. In an age of abundant cheap calories, the caricature has public-health resonance — habitual overconsumption drives obesity and its attendant diseases. Yet nutritionists caution against the moral framing: overeating usually reflects environment, habit, emotion, and physiology more than character, and shaming rarely changes behaviour. The term survives mainly as colourful, faintly archaic criticism.