We do not recommend relying on lists or publications for gluten-free status as manufacturers can change the ingredients in a product at any time and a list may not be updated frequently enough to reflect these changes. The most efficient way to find out if a product is gluten-free is to read the ingredient label carefully. If it is not clear if the product is gluten-free we recommend to contact the manufacturer directly.

Ways of Finding Information & Product Research for Gluten-Free Status

Product labels

• Look for a gluten-free label/statement.
• Read the ingredients carefully. Wheat is required to be listed on the label on foods regulated by the FDA, but barley and rye are not.
• For foods that are not labeled gluten-free watch out for wheat, rye, barley, malt, brewer's yeast and oat ingredients on the label.
• I recommend that any grain-based foods such as cereals and flour always be labeled gluten-free due to the high risk of cross contact with gluten.
• If unsure always contact the manufacturer.
• Find more information on labeling here: https://nationalceliac.org/celiac-disease-questions/manufactured-in-shared-facility/ and here: https://nationalceliac.org/blog/email-newsletters/confusion-about-food-labeling/

Calling the manufacturer (this is usually the quickest way)

• The manufacturer’s phone number can usually be found on the product label or their website.
• Ask the customer service representative for gluten-free status of their product.
• Questions to ask if product is NOT labeled gluten-free (safety determined on an individual basis):
  • Does the product contain any wheat, barley or rye ingredients?
  • Is gluten used on the same belt/equipment?
  • Do you have a cleaning process between products
  • What are your procedures for preventing cross-contact?

The manufacturer website (often listed on the product)

• Look for their “FAQ” section.
• Use the search function to locate the product and information on their website.

Email the manufacturer

• Email can be found on their product or their website.
• Note that an answer may take a lot longer than calling.

About Oats:

Oats are a bit more complicated. One of the biggest issues with oats is that a lot of sources of oats have had cross-contact with gluten-containing grains - even some that are labeled gluten-free. Always discuss with your healthcare provider before introducing oats and always choose oats that are labeled gluten-free.

Read more on oats:

https://nationalceliac.org/nca-stance-on-gluten-free-oats/

https://nationalceliac.org/celiac-disease-questions/are-oats-safe-for-people-with-celiac-disease/

Reviewed and updated October 20, 2022.