healthiest
heal-thi-est
adjective
Having the greatest level of good physical or mental condition; most conducive to health.
"Eating vegetables is the healthiest choice."
Thesaurus
Synonyms: sound, reasonable, levelheaded, level-headed, sensible, intelligent, healthy, sanguine, hale, well-preserved, rose-cheeked, rosy-cheeked
Antonyms: unhealthy