And as I've also said before, I love it when parents tell their kids the truth

From Overheard in New York:

Father: I don't even want to know how many calories this burger has.
Young daughter: What's a calorie?
Father: A calorie is a unit of flavor.

--Five Guys Burgers, Brooklyn

Or as an old friend of mine is fond of saying,

Calories are nature's way of making things taste good.