A popular joke about a “stable diet” is:
Q: Why are most horses so slim?
A: They are on a stable diet.
This joke was cited on Twitter on December 30, 2012. The “stable diet” pun/joke has had several forms. In 1924, it was about eating like a horse:
“No, Dora, people on stable diets are not supposed to eat like horses.”
In 2006, it was about eating a horse:
“During WW2, a lot of people’s stable diet was horse meat!”
In 2007, it was about eating what horses eat:
“My doctor’s put me on a stable diet – hay and oats three times a day.”
3 October 1924, San Diego (CA) Evening Tribune, “Sunshine Pellets” by Dr. W. F. Thomson, pg. 4, col. 3:
No, Dora, people on stable diets are not supposed to eat like horses.
Google News Archive
26 May 1961, The Southeast Missourian (Cape Girardeau, MO), pg. 1, col. 4:
Little Liz Says:
A stable diet doesn’t guarantee that the guy eating it will have good horse sense.
Google Groups: demon.local
15 June Puns
Oats: A horse’s stable diet!
Google Groups: alt.humor.puns
16 October Puns
During WW2, a lot of people’s stable diet was horse meat!
Man Walks into a Bar:
Over 6,000 of the Most Hilarious Jokes, Funniest Insults and Gut-Busting One-Liners
By Stephen Arnott and Mike Haskins
Berkeley, CA: Ulysses Press
My doctor’s put me on a stable diet – hay and oats three times a day.
How to Double the Meaning of Life
Xlibris Corporation (Xlibris.com.au)
a stable diet hay and oats
Why are most horses so slim?
Because they are on a stable diet.
12:26 PM - 30 Dec 2012
Pathway Horse Joke of the Day!
Q: Why are most horses in shape?
A: Because they are on a stable diet. http://fb.me/LbzXLEgg
10:26 AM - 29 May 2013
Gigglers: Sporty Jokes
By Toby Reynolds
London: Scholastic UK
Q. Why are racehorses so fit and healthy?
A. Because they are on a stable diet!
Why are horses always so fit? They’re on a stable diet. #Jokes #Terrible
1:03 AM - 12 Jun 2016