A lot vs. Alot: 9 Grammatical Pitfalls
It is wrong to say that certain articles of food are healthy or unhealthy. Wholesome and unwholesome are the right words. A pig may be healthy or unhealthy while alive; but after he is killed and becomes pork, he can enjoy no health, and suffer no sickness. [Eliza Leslie, "Miss Leslie's Behaviour Book," Philadelphia, 1839]
healthy health·y (hěl'thē)
adj. health·i·er, health·i·est
Possessing good health.
Conducive to good health; healthful.
Indicative of sound, rational thinking or frame of mind.