Is Diet Mountain Dew Gluten Free?

Yes, Diet Mountain Dew is gluten-free. According to PepsiCo, the manufacturer of Mountain Dew products, Diet Mountain Dew does not contain any ingredients derived from wheat, barley, or rye.
Is Diet Mountain Dew Gluten Free?

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Frequently Asked Questions

Is Diet Mountain Dew gluten-free?

Diet Mountain Dew is gluten-free. The beverage contains no wheat, barley, rye, or other gluten-containing ingredients.

Does Diet Mountain Dew contain any wheat-derived ingredients?

No, Diet Mountain Dew does not contain any wheat-derived ingredients. It is made primarily of carbonated water, artificial sweeteners, natural and artificial flavors, citric acid, caffeine, sodium benzoate, and food coloring.

Could the caramel color in Diet Mountain Dew have gluten contamination?

Caramel color is generally gluten-free as it’s made from corn or cane sugar, not wheat or other gluten-containing grains. Diet Mountain Dew’s caramel color is considered safe for people with celiac disease or gluten sensitivity.

Are the artificial flavors in Diet Mountain Dew sourced from gluten-containing grains?

No, the artificial flavors in Diet Mountain Dew are not derived from gluten-containing grains. Diet Mountain Dew is considered gluten-free.

Does PepsiCo process Diet Mountain Dew on equipment that also processes gluten products?

Diet Mountain Dew is produced in dedicated beverage facilities that do not process any gluten-containing ingredients. PepsiCo confirms that Diet Mountain Dew is gluten-free.
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Dr. Anne Verstegen

Dr. Anne Verstegen specializes in orthomolecular therapy and nutritional coaching. With a background in public health research and management, she focuses on addressing health concerns through dietary approaches, gut health optimization, and stress reduction strategies. As Glutenfreeda's professional editor, she reviews all content to ensure accuracy, safety, and alignment with current nutritional science.

We Try Our Best

We understand how important it is to have trustworthy information when managing a gluten-free lifestyle, which is why we carefully source all our content from respected health and nutrition experts. You can find these trusted references listed below: 

  1. National Institutes of Health (NIH)

  2. Coeliac UK

  3. Harvard T.H. Chan School of Public Health

  4. Mayo Clinic

  5. World Health Organization (WHO)

  6. Celiac Disease Foundation

While we’re committed to sharing the most accurate and helpful gluten-free guidance possible, we’re human and sometimes things slip through the cracks.

If something doesn’t look quite right to you or if you have any questions, we’d genuinely appreciate you contacting us. It helps us keep improving and ensures everyone gets the reliable information they deserve.

The information on this site is for educational purposes only and doesn’t replace professional medical advice. If you suspect gluten sensitivity, consult with a healthcare provider before changing your diet.