However, those people are obviously forgetting that there are actually several definitions of the word "healthy." Ahem:
1. possessing or enjoying good health or a sound and vigorous mentality: a healthy body; a healthy mind.
2. pertaining to or characteristic of good health, or a sound and vigorous mind: a healthy appearance; healthy attitudes.
3. conducive to good health; healthful: healthy recreations.
4. prosperous or sound: a healthy business.
5. fairly large: I bought a healthy number of books.
–adjective, health·i·er, health·i·est.lthy numbeConsidering the last two definitions...