glutton
The French word 'glouton' refers to someone who enjoys eating excessively and with great eagerness. It can be used to describe both literal gluttony, relating to overeating, as well as a metaphorical sense of indulging in any activity or pleasure too much. In a sentence, one might say 'Il est un glouton quand il s'agit de dessert,' meaning 'He is a glutton when it comes to dessert.'