Is Olive Oil Gluten-Free? Yes — Here Is Why

By Skyler Mapes, the co-founder of EXAU Olive Oil, a family-farmed extra virgin olive oil from Calabria, Italy, and the author of The Olive Oil Enthusiast (Penguin Random House). A Level II certified olive oil sommelier, she is one of the few women leading an olive oil company worldwide and was named to Forbes 30 Under 30.

Yes—extra virgin olive oil is 100% gluten-free. It is made entirely from the olive fruit, which contains no gluten whatsoever. This is true for all grades of olive oil, from the highest-quality extra virgin to refined oils.

If you have celiac disease or a gluten sensitivity, olive oil is one of the safest and most nutritious cooking fats you can choose. It is a natural staple of the Mediterranean diet and a perfect fit for a gluten-free lifestyle.

What Is Gluten?

Gluten is a protein found in wheat, barley, and rye. It helps food keep its shape, acting like a "glue." For people with celiac disease, even a tiny amount of gluten triggers an immune response that damages the small intestine.

According to the Celiac Disease Foundation, about 1 in 100 people worldwide have celiac disease. However, many remain undiagnosed for years. If you’re transitioning to a gluten-free diet, switching to a naturally gluten-free fat like extra virgin olive oil is a smart first move.

Is There a Risk of Cross-Contamination?

In theory, cross-contamination happens if a facility processes both olives and grain products. However, in the world of high-quality Italian olive oil, this is extremely rare.

Dedicated Mills: Authentic Italian olives are pressed in specialized mills (frantoi), not grain facilities. This means the risk of coming into contact with wheat or barley is almost zero.
The EXAU Standard: While you won't see a "Gluten-Free" logo on our labels, our oil is produced in Calabrian mills that handle only olive fruit. There are no other crops and no shared equipment with grain products. For us, purity is a given, not a marketing claim.

For those with severe celiac disease, Beyond Celiac recommends reading labels carefully, especially if you are buying "infused" or flavored oils, which could contain additives with gluten. For plain, high-quality olive oil, the risk is incredibly low.

Understanding "Gluten-Free" Labels

In the United States, the FDA defines "gluten-free" as containing less than 20 parts per million (ppm) of gluten. This is the lowest level scientists can consistently detect.

Since plain olive oil is inherently gluten-free, producers can voluntarily use this label. At EXAU, we prefer to let the quality of the oil speak for itself. When you buy our oil, you are getting pure fruit juice from our family groves, free from any hidden fillers or grain-based additives.

Why Olive Oil Is the Best Fat for Celiac Patients

If you are managing celiac disease, you are often dealing with systemic inflammation. Extra virgin olive oil is more than just "safe"—it is actively beneficial. It contains oleocanthal, a natural compound that works similarly to ibuprofen to help lower inflammation. Read our full guide to olive oil and inflammation here.

A major 28-year study in the Journal of the American College of Cardiology showed that replacing fats like butter or margarine with olive oil significantly lowers the risk of chronic disease. For a gluten-free household, EVOO is the ultimate pantry workhorse.

Frequently Asked Questions

Is all olive oil gluten-free?

Yes. All grades—including Extra Virgin, Virgin, and Refined—are naturally gluten-free because they are made from fruit, not grain.

Why doesn't EXAU have a "Gluten-Free" logo on the label?

Because high-quality extra virgin olive oil is inherently free of gluten. We focus our label space on important quality markers like the harvest date and cultivar. Rest assured, our oil is processed in a facility that exclusively handles olives.

What about flavored or infused olive oils?

Plain olive oil is always gluten-free. However, if you are buying an oil infused with flavorings, always check the label for "natural flavors" or "additives" that might contain gluten. Learn how to read olive oil labels here.

Shop our 100% Italian extra virgin olive oil, made in Calabria, single origin, and family farmed since 1927.

We wrote a book called The Olive Oil Enthusiast. Order your copy today.

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