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Post
Note: Some exact discontinuation dates are unknown due to limited documentation, particularly for older Post cereals from the mid-20th century.
Discontinued: 1908
Talk about a controversial name. Post’s first cornflakes cereal caused such religious outrage that Great Britain refused to trademark it. After complaints poured in, Post wisely renamed it “Post Toasties.”
Discontinued: 1971
This low-performing children’s cereal was struggling until Post added Flintstones characters and rebranded it as Fruity and Cocoa Pebbles. Though the name of the cereal has since been discontinued, it lives on with basically the same formula as the original.
Discontinued: 2021
The cereal that taught kids to spell... and spell trouble. Created by Thomas M. Quigley in 1957, parents loved the educational aspect. Kids (and mischievous adults) loved spelling inappropriate words in their milk. After multiple comebacks, it finally said goodbye in 2021.
Discontinued: 2011
The colorful upgrade nobody asked for but everyone remembered. With pink A’s, yellow E’s, and purple I’s, this 1990s invention by two entrepreneurs added sugary vowels to breakfast. The marshmallows evolved with “super-swirls” before being swallowed whole by the graveyard of forgotten cereals.
Discontinued: 1994
Named after the founder himself, this granola tried to ride the health wave of the 1970s. With 27% sugar content, it wasn’t exactly a health food, but it competed with Quaker’s Natural Granola.
Discontinued: 2007, 2024
The cookie cereal that couldn’t survive corporate divorce. This Post-Kraft collaboration was hugely successful until the companies split up. Neither wanted to give up their piece of the Oreo pie, so the cereal became collateral damage in corporate politics.
But then it came back in 2017 after fans demanded its return. But Oreo O’s was eventually replaced by “Oreo Puffs,” where it lives on in the modern day.
Discontinued: 2011
Riding the cupcake craze wave, this 2010 limited edition of Pebbles tried to capitalize on America’s cupcake obsession with vanilla cupcake flavor and sprinkles. The artificial taste proved too much even for sugar-loving kids, lasting just one year in the Pebbles family.
Discontinued: 2020
The cereal that ruined milk forever. Post’s most controversial creation made breakfast sour—literally. While the “sour then sweet” Sour Patch candy concept worked, nobody wanted their morning milk to taste like battery acid. A bold experiment that was destined not to last.
Discontinued: Unknown
The sweet upgrade that should’ve stayed. Post took their successful Honeycomb cereal and added chocolate in 2006, creating bigger, more decadent pieces. Fans called it “genius,” but like many good things, it vanished too soon, leaving chocolate-honey dreams unfulfilled.
Discontinued: 1980s
Featuring Wile E. Coyote and Road Runner as mascots, this cereal tried to capture Warner Bros. cartoon magic like Pebbles did with the Flintstones. Unfortunately, it couldn’t outrun the competition in the breakfast aisle.
Discontinued: 1960s
The cereal with an identity crisis. Starting as “Corn-Fetti” in the 1950s, it became “Sugar Coated Corn Flakes,” then “Sugar Sparkled Corn Flakes.” Multiple name changes couldn’t save this sweet corn flake variation from breakfast obscurity.
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