good for you is an adjective meaning "promoting health; healthful". It carries one recorded sense.
promoting health; healthful
“a healthy diet”
“clean healthy air”
“plenty of healthy sleep”
“healthy and normal outlets for youthful energy”
“the salubrious mountain air and water”
“carrots are good for you”
Definitions, synonyms and semantic relations for good for you come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.