Whether gluttony is the greatest of sins?

Objections

Objection 1 : It would seem that gluttony is the greatest of sins. For the grievousness of a sin is measured by the grievousness of the punishment. Now the sin of gluttony is most grievously punished, for Chrysostom says [*Hom. xiii in Matth.]: "Gluttony turned Adam out of Paradise, gluttony it was that drew down the deluge at the time of Noah." According to Ezech. 16:49, "This was the iniquity of Sodom, thy sister . . . fulness of bread," etc. Therefore the sin of gluttony is the greatest of all.
Objection 2 : Further, in every genus the cause is the most powerful. Now gluttony is apparently the cause of other sins, for a gloss on Ps. 135:10, "Who smote Egypt with their first-born," says: "Lust, concupiscence, pride are the first-born of gluttony." Therefore gluttony is the greatest of sins.
Objection 3 : Further, man should love himself in the first place after God, as stated above (Question [25], Article [4]). Now man, by the vice of gluttony, inflicts an injury on himself: for it is written (Ecclus. 37:34): "By surfeiting many have perished." Therefore gluttony is the greatest of sins, at least excepting those that are against God.