Wordnet 3.0
ADJECTIVE (1)
1. 
 promoting health; 
 healthful; 
- Example: "a healthy diet"- Example: "clean healthy air"- Example: "plenty of healthy sleep"- Example: "healthy and normal outlets for youthful energy"- Example: "the salubrious mountain air and water"- C.B.Davis- Example: "carrots are good for you"[syn: healthy, salubrious, good for you(p)]
WordNet (r) 3.0 (2006):
good for you
    adj 1: 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"- C.B.Davis; "carrots are good for
           you" [syn: healthy, salubrious, good for you(p)]