Are M&M’s gluten-free? It depends on the flavour
It depends on the flavour, and none is labelled gluten-free.
What the maker says
- US: Mars says every M&M’s contains milk and soy and, depending on the flavour, contains or may contain peanut, tree nuts and wheat.
- UK and EU: depending on the flavour, M&M’s contain or may contain barley and wheat (gluten).
- Flavours with pretzel or cookie pieces often contain wheat: read the ingredients. Plain milk chocolate and peanut are the simplest recipes, but check the pack.
“May contain” is a voluntary warning, not an ingredient: here’s how to read it.
Keep reading
Sources: M&M’s US allergen statement (mms.com/en-us); M&M’s UK allergen statement (mms.com/en-gb). All read 28 September 2026. Recipes change and differ by country: the pack in your hand has the last word. We inform, we don’t diagnose.
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Reviewed against the HTGF methodology: every claim sourced, every listing tiered and dated. This article is practical guidance, not medical advice.
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