What are gluten-free cheerios made of? A Closer Look at the Ingredients
                                
                                
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                                    3 min read                                
                            
                                Cheerios have always been made from oats, which are naturally gluten-free, yet most conventional oats carry a significant risk of cross-contamination with gluten-containing grains during farming and processing. This is why the question 'what are gluten-free cheerios made of?' involves not only the core ingredients but also a special manufacturing process to ensure their certified status.