Hmm, thought of another food-related story, this one from Superboy in the mid 70s. His mothers' garden tomatoes had gotten infected with a disease from a red-sun world, and every time he ate tomato soup made with it, he would weaken. Prior to finding the cause of his problem, he said or implied something to his mother about not really needing to eat, to which the inimitable Martha Kent replied, "Nonsense, everyone needs a good hearty bowl of soup every now and then!" or words to that effect.

This was from the Pre-Crisis timeline, so it wouldn't apply to the modern Superman.

Amazing what memory dredges up after such a long time.

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