Is soy gluten-free? Soybeans are, soy sauce usually isn’t

Soybeans are naturally gluten-free, and so are plain tofu, edamame and most soy milk.

What to check

• Soy sauce: most soy sauce is brewed with wheat. Look for tamari or a soy sauce labelled gluten-free.
• Marinated and flavoured soy products: marinades often contain soy sauce. Read the label.
• Soy flour and textured soy protein: usually fine, but check for cross-contact on the pack.
• “Soy” in an ingredient list means soybeans; “soy sauce” is the one to watch.

Keep reading

• Is soy sauce gluten-free?
• Is tofu gluten-free?
• Is miso gluten-free?

Sources: Coeliac UK, EU Regulation 1169/2011 and 828/2014, US FDA gluten-free rule and FALCPA, Codex Alimentarius (gluten-free = 20 mg/kg or less). Checked 28 September 2026. We inform, we don’t diagnose: for medical questions, your doctor or dietitian has the last word.