Is it vegan? Additives & E-numbers E415
Is xanthan gum vegan?
Quick answer: Yes. Xanthan gum (E415) is made by fermenting sugars with bacteria and is generally considered vegan.
Also called: E415, xanthan
Why it’s vegan
Xanthan gum is a thickener and stabiliser produced by fermenting a carbohydrate with the bacterium Xanthomonas campestris, then purifying and drying the result. EFSA re-evaluated it in 2017, with a follow-up in 2023.
Some vegans ask whether the fermentation medium could include animal-derived nutrients such as whey; this is uncommon, and xanthan gum is accepted in vegan-certified products. If you need certainty, buy a product with a vegan logo.
What to look for on the label
- E415
- xanthan gum
Where it’s found
- Gluten-free baking
- Sauces and dressings
- Plant milks and ice cream
Frequently asked questions
Is xanthan gum vegan?
Yes. Xanthan gum (E415) is made by fermenting sugars with bacteria and is generally considered vegan.
Why is xanthan gum in gluten-free flour?
It adds stretch and binding that gluten would otherwise provide.
Sources
- Approved additives and E numbers — Food Standards Agency (UK)
- Re-evaluation of xanthan gum (E 415) — follow-up (2023) — EFSA Journal
Checked on 31 October 2026. Ingredients and recipes change, and the same product can differ between countries — always check the current label. This page is general information, not allergy or medical advice.