If a magic genie told you your calories wouldn't count for 24 hours, would it change what and how much you ate that day? View other answers

If a bonafide, JREF-certified magical genie I could trust to be truthful said my calories wouldn't count for 24 hours ... I'd try something which filthspigot mentioned in the commentary to A Girl And Her Fed: a milkshake with a stick of butter in it.