Is M&S mash potato gluten-free?
                                
                                
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                                    4 min read                                
                            
                                According to Marks & Spencer's allergen policy, gluten-containing ingredients are clearly listed in bold on product packaging, which is a crucial step for anyone navigating a gluten-free diet. Understanding this labelling is key to answering the question: is M&S mash potato gluten-free?