apple a day

an apple a day

A truncation of the proverb "an apple a day keeps the doctor away," meaning small, healthful everyday habits will help prevent medical problems in the future. People consider me eccentric for my insistence on going for a walk at dawn each morning, but an apple a day, as they say!
See also: apple
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

apple a day

A small preventive treatment wards off serious problems, as in He exercises regularly-an apple a day is his motto. This idiom shortens the proverb An apple a day keeps the doctor away, first cited about 1630.
See also: apple
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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