I was remembering the jingle...perhaps you remember it too?
Rich, rich, rich in flavor!
Smooth, smooth, smooth as silk,
More food energy than fresh, whole milk!"
You know what else has "more food energy than fresh, whole milk"? Milk with sugar in it. "Food energy" was just another way of saying "calories". Associating it with "fresh, whole milk" has a wholesome, nurturing sound to it, doesn't it? Can you imagine anyone trying to market food like that today? "Hey, Moms! You make it with milk, but it's got WAY more calories than that!"