Breakfast food giant makes major change to iconic cereal’s recipe

Kellogg’s is updating the recipe for its iconic Rice Krispies cereal in the United Kingdom, replacing whole rice grains with rice flour as weather‑related supply disruptions affect ingredient availability. The reformulation also applies to Coco Pops—sold as Cocoa Krispies in the United States—where the cereal now contains a blend of rice flour and corn flour, according to British grocery publication The Grocer.

The changes are limited to the U.K. markets; Rice Krispies sold in the United States and Canada remain unchanged, WK Kellogg Co. confirmed to FOX Business.

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A box of Kellogg’s Rice Krispies cereal sits beside a bowl of the popular breakfast food. The company has reformulated the cereal’s recipe in the U.K., but the U.S. version remains unchanged. (Tiffany Hagler-Geard/Bloomberg via Getty Images / Getty Images)

“Kellogg’s Rice Krispies cereals sold in the U.S. and Canada are not impacted by the recently reported recipe changes to Kellogg’s Rice Krispies and Kellogg’s Coco Pops cereals in the U.K.,” a spokesperson said.

WK Kellogg Co. stated that its Rice Krispies, Cocoa Krispies and Frosted Krispies cereals in North America continue to be made with real rice and have no ingredient modifications.

The former Kellogg Company split into two entities in 2023. Kellanova, which now oversees the U.K. cereal brands, was acquired by Mars in December 2025, while Ferrero purchased WK Kellogg Co. in September 2025.

Kellanova said the reformulation is intended to preserve consistent product quality as shifting weather patterns affect grain availability and quality.

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A store’s breakfast cereal aisle. (Jeffrey Greenberg/Universal Images Group via Getty Images / Getty Images)

The updated U.K. recipes also contain wheat gluten, making the cereals unsuitable for consumers with wheat allergies or celiac disease.

The company maintains that the cereals still meet British nutritional standards for fat, salt and sugar while retaining previous levels of fiber, vitamin D and iron.

Rice Krispies sales have fallen in the United Kingdom, according to The Grocer, though the company has not tied the decline to the new formulation.

WK Kellogg is accelerating plans to eliminate artificial colors from its entire cereal portfolio by the end of 2026. (Brandon Bell/Getty Images / Getty Images)

Other major cereal makers are also revising their products. General Mills announced in August that its U.S. cereals—including Lucky Charms and Trix—no longer contain certified synthetic colors. The company plans to remove those additives from its entire U.S. retail lineup by the end of 2027.

A representative for Kellanova, which manages the U.K. cereal brands, did not immediately respond to a request for comment.

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