Whether gluttony is a mortal sin?

❌ Objection 1 : It would seem that gluttony is not a mortal sin. For every mortal sin is contrary to a precept of the Decalogue: and this, apparently, does not apply to gluttony. Therefore gluttony is not a mortal sin.

❌ Objection 2 : Further, every mortal sin is contrary to charity, as stated above (Question [132], Article [3]). But gluttony is not opposed to charity, neither as regards the love of God, nor as regards the love of one's neighbor. Therefore gluttony is never a mortal sin.

❌ Objection 3 : Further, Augustine says in a sermon on Purgatory [*Cf. Append. to St. Augustine's works: Serm. civ (xli, de sanctis)]: "Whenever a man takes more meat and drink than is necessary, he should know that this is one of the lesser sins." But this pertains to gluttony. Therefore gluttony is accounted among the lesser, that is to say venial, sins.

❌ Objection 4 : On the contrary, Gregory says (Moral. xxx, 18): "As long as the vice of gluttony has a hold on a man, all that he has done valiantly is forfeited by him: and as long as the belly is unrestrained, all virtue comes to naught." But virtue is not done away save by mortal sin. Therefore gluttony is a mortal sin.