Fiber One
brand of breakfast cereal, nutritional bars and baked products by General Mills

Fiber One (marketed as Fibre One in the United Kingdom and Fibre 1 in Canada) is a brand of high-fiber breakfast cereal, packaged nutritional bars, and baked food products owned by General Mills. Originally released as a breakfast cereal in 1985, it directly competes with Kellogg’s All-Bran.
History
It was introduced in 1985 as a breakfast cereal, resembling the shape and texture of the already released All-Bran Original cereal from Kellogg’s. General Mills released a second version of the cereal called “Fiber One Honey Clusters” in 2005. This cereal more resembled Post’s Honey Bunches Of Oats. The first line of Fiber One breakfast bars were then released in 2007. This was followed with an expansion of the brand, with yogurt, muffin and pancake mixes, and pastries being introduced under the brand.
In January 2014, General Mills released a high-protein granola version of the cereal under the name “Fiber One Protein”. This spin-off version of the cereal came in maple brown sugar and cranberry almond flavor varieties. In January 2019, General Mills debuted a spin-off to their Honey Clusters variety of Fiber One, calling it “Fiber One Strawberries & Vanilla Clusters”.
The public source identifies “Fiber One” as brand of breakfast cereal, nutritional bars and baked products by General Mills. This brief keeps that definition visible, then builds a research path around Fiber, brand and breakfast.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Feb 15, 2026. The linked authority identifier is Q123108847. None of the 1 selected statements returned an explicit reference. The first chronological checks are 1985, 2005, 2007 and 2014.
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This entry incorporates text from “Fiber One” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.