Gluten-Free Label Reading FAQ

Warm, honest answers from people who live this. Not medical advice — for personal medical decisions, talk to your gastroenterologist or your national coeliac society.

Reading a label shouldn’t feel like a test you might fail. We’ve turned the six questions we get asked most about gluten-free labels into their own plain-English answers — the science, the wording, and what to actually do at the shelf. Tap any question below for the full answer, or read the ones that matter to you today.

Everything here is grounded in Coeliac UK, the Codex Alimentarius ≤ 20 ppm standard, the UK Food Standards Agency and AOECS — never hype, never fear.

What the label claims mean

• What does “gluten free” actually mean — is it completely gluten free?
  Not zero gluten — in regulated markets it’s a legal claim meaning 20 ppm or less, a level backed by real science. Read the full answer →
• What does “may contain gluten” mean — can I eat it?
  It’s a voluntary, unverified caution — not a safety verdict. Weigh the source rather than treating every line as a red light. Read the full answer →
• What is the crossed grain symbol, and should I only buy products that have it?
  It certifies independently-audited ≤ 20 ppm — a reliable green light, but its absence isn’t a warning. Read the full answer →

Ingredients that catch people out

• Is malt extract gluten free? I keep seeing it in cereals and snacks.
  Barley malt keeps its gluten through processing — avoid it unless the finished product is labelled gluten free. Read the full answer →
• The label says oats — does that mean it’s not safe for me?
  Not an automatic no — standard oats risk cross-contact, but gluten-free-labelled oats suit most coeliacs. Introduce them gradually. Read the full answer →
• What are the hidden gluten ingredients I’m most likely to miss?
  The gluten you miss is rarely called wheat — watch for malt, spelt, soy sauce, stock cubes and non-GF wheat starch. Read the full answer →

Where to go next

Want the label basics in one place? See Reading Food Labels. Sorting wheat-free from gluten-free? Read Wheat-free vs gluten-free. Newly diagnosed? Start with Your First 90 Days with Coeliac Disease.

Sources: Coeliac UK; UK Food Standards Agency; Codex Alimentarius (gluten-free ≤ 20 ppm); FAO/WHO reference-dose framework (2025); AOECS. Last verified: 2026-07-20. This is general information, not medical advice — talk to your GP or a coeliac-aware dietitian about your own situation.