keep fit(redirected from keeps fit)
To remain strong, healthy, and physically sound. There are all sorts of fad diets and get-fit-quick workout routines out there, but the only reliable way to keep fit is to eat more fruits and vegetables, cut down on junk food, and exercise regularly.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
to keep in good physical condition. I do everything I can to keep fit.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.