“No one wants to hear about your diet. Just eat your lettuce/salad and be sad” is a jocular saying that has been printed on many images. “People don’t want to hear about your diet, Just shut up, eat your lettuce, and be sad” is a line from the American comedy television series on MTV called Girl Code, on the episode “Dieting, Vacations, Neediness, Watching Sports” that aired on May 19, 2013. The quote is from actress and writer Nicole Byer.
 
“Lettuce” is often changed to “salad.” “No one wants to hear about your diet just eat your salad and be sad” was posted on Twitter on May 19, 2013.
 
   
Wikipedia: Girl Code
Girl Code is an American comedy television series on MTV that debuted on April 23, 2013. It is a spin-off series to Guy Code. The series features female actresses, musicians, stand-up comics — plus a few men — who discuss the sisterhood that women share.
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“Dieting, Vacations, Neediness, Watching Sports” May 19, 2013
     
Twitter
grace♛‏
@gcsammarco
just eat your lettuce and be sad. #girlcode #dieting
8:58 PM - 19 May 2013
 
Twitter
Devin Willhite‏
@devin_willhite
Shut up, eat your lettuce and be sad #girlcode
8:58 PM - 19 May 2013
 
Twitter
sully‏
@SulllyBabe_
“No one wants to hear about your diet, so just shut up and eat your lettuce and be sad”
8:58 PM - 19 May 2013
 
Twitter
hollyschwartz‏
@h0llyschwartz
@Sarahtogaa no one wants to hear about your diet just eat your salad and be sad
9:23 PM - 19 May 2013
 
Twitter
MacAttackk. ✨‏
@MachalaWormuth
“No one cares about you diet so shut up, and your salad and be sad.” 😂😂 I love you Girl code.
9:24 PM - 19 May 2013
 
Twitter
Nataliee ✨ ✈️‏
@Nat_Marie7
”@AmberLeeCordell: No one wants to know about your diet, just eat your salad and be sad #GirlCode” @Holly_Marie_97
10:24 PM - 19 May 2013
   
Small Screen Scoop
The ULTIMATE list of ‘Girl Code’ Quotes from the MTV Show
By: Estella Pierce | February 12, 2014 at 9:21 PM EDT
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“People don’t want to hear about your diet. Just shut up, eat your lettuce, and be sad.” – Nicole Byer
   
13 February 2016, Townsville (Queensland) Bulletin, “No Sweat, I’ll sip Sauv Blanc” by Jess Steele, pg. 11:
SAVE ME FROM THE 12-WEEK CHALLENGE. That’s ALL they talk about! How many grams of fat or salt or sugar or whatever is on their plates, how they “smashed” a workout session, then they judge me for eating a rather large, delicious piece of Milo cheesecake (not sugar free, apparently?) I just want to say, shut UP—eat your salad and be sad.
 
10 December 2016, Buffalo (NY) News, “Vidler’s vintage variety: At the sprawling five-and-dime, you’ll find toys, games, gadgets and so much else” by Mary Kunz Goldman, pg. C25:
Already in her basket was a big tin sign reading “Nobody Wants To Hear About Your Diet. Just Shut Up, Eat Your Lettuce and Be Sad.”