Breakfast cereal giant Kellogg's has stopped using rice grains in Rice Krispies and Coco Pops in the UK due to "changing weather conditions" that have disrupted supplies.
Corn flour and rice flour are being used instead, a Kellogg's spokesperson said on Tuesday, adding that the updated recipes have been "carefully assessed" and the firm has taken customer feedback into consideration.
Those ingredients are replacing rice grains as crops have been hit by dry weather in key producing countries in Asia, reducing harvests and driving up prices.
The new recipes mean cereal packaging will now include a "contains wheat gluten" warning.
Rice Krispies products in the US and Canada will continue to be made with real rice with no changes to their recipes expected, a spokesperson for Kellogg's North American business told the BBC.