noun

habitual greed or excess in eating.

she said plumpness was a sign of gluttony in most cases

greed,greediness,overeating,overconsumption,binge eating,gourmandism,gourmandizing,gluttonousness,voraciousness,voracity,wolfishness,insatiability,piggishness,hoggishness,gutsiness,polyphagia,hyperphagia,edaciousness,edacity,gulosity,esurience