Here's another one from the mystic chords of memory, in the Songs About Food Dept., to the tune of "I'm In The Mood for Love", it was called "The Health Food Anthem" or something similar...

"I'm eating food for health
'Cause it is so nutritious
Though it is not delicious
I'm eating food for health"   

My fifth grade teacher, Hank Ardanowski, was a big MAD fan. If he confiscated your copy of the magazine in class, it was only so he could read it himself. Then he'd give it back. Or sometimes he'd read it aloud to the class, instead of the lesson. We would occasionally even get to SING these songs in class as a reward, say if we'd all just passed a important exam. He once gave me extra credit for turning in a project that featured a MAD-style fold-in cover. Gosh, I haven't thought about this stuff in years!