10 Foods High in Gluten You Must Avoid If You Have Celiac Disease

8. Mayonnaise

Mayonnaise is made from eggs and emulsifiers and thickeners. Some mayonnaise brands use grain-based vinegars such as white vinegar. Hence, you should look at the label and read if you’re buying mayonnaise. Better yet, you can make your own mayo at home. You only need a couple of ingredients such as egg, white wine vinegar, garlic, olive oil, and mustard seeds.

9. Ketchup

Flour is used to achieve the right consistency of different condiments. As such, ketchup also contains gluten. While there are a few brands that use natural thickeners for their dips, there are still other companies that use flour. Again, check the label for the ingredients. If you find flour among the list, don’t buy the product.