A Groom used to spend whole days in currycombing and rubbing down his Horse, but at the same time stole his oats and sold them for his own profit[1]. “Alas!” said the Horse, “if you really wish me to be in good condition, you should groom me less, and feed me more.”

Moral of the story: Beauty comes from within, in the form of fats, proteins & carbohydrates.

[1] This groom is clearly in the wrong line of work.