safe
Usually okay on its own
Plain mayonnaise is usually gluten-free, but the exact jar or bottle still matters. Check flavored mayo, salad dressings, sandwich sauces, malt vinegar, wheat-containing flavorings, and advisory wording.
Why it matters
This standalone term is generally not a gluten ingredient, but the full product label still matters.
Why this can be confusing
- Mayonnaise is often grouped with sauces and dressings that have longer ingredient lists.
- Vinegar wording can make people worry, especially when malt vinegar is possible in other condiments.
- Flavored mayo and sandwich sauces can include seasonings, soy sauce, or wheat-containing add-ins.
- Restaurant mayo-based sauces may not have a visible ingredient label.
What to check on the label
- Whether it is plain mayonnaise or a flavored mayo, dressing, aioli, or sandwich sauce.
- Malt vinegar, barley malt, wheat, soy sauce, malt flavor, or wheat-containing seasonings.
- Contains: wheat or contains gluten statements.
- May contain wheat, may contain gluten, or shared-equipment advisory wording.
- A gluten-free claim on the exact product if strict avoidance matters.
Want a label-specific answer?
Ingredients can vary by brand. Want to check the actual product? Install GlutenScan and scan the ingredients list.
Download on theApp Store