Is Maltodextrin Gluten Free?

The “malt” red herring

Despite the name, maltodextrin is not related to barley malt. “Malt” in the name refers to maltose-like sugar units (poly-D-glucose). The starting material is almost always corn (in the U.S.), rice, potato, or tapioca. In some European brands, it’s derived from wheat starch.

Why wheat-derived maltodextrin is still gluten free

Maltodextrin is produced by hydrolyzing starch with acid and enzymes, which breaks the starch into short glucose chains. The proteins (including gluten) are denatured and filtered out. Final-product testing consistently shows maltodextrin contains less than 20 ppm gluten — well below the FDA threshold.

The FDA explicitly addresses this in its Gluten-Free Labeling Final Rule: ingredients derived from wheat that have been processed to remove gluten and result in a final food containing less than 20 ppm gluten can be used in gluten-free labeled foods.

Where you’ll find maltodextrin

It’s used as a bulking agent, thickener, and carbohydrate source in:

• Sports drinks, protein powders, energy bars
• Powdered drink mixes (Crystal Light, Gatorade powder)
• Salad dressings, sauces
• Artificial sweeteners (Splenda, Equal — as a bulking agent)
• Many “low-fat” and “diet” foods
• Some medications (as an excipient)

When to still verify

In European products, wheat-derived maltodextrin is more common. EU labeling requires “wheat” disclosure even when the gluten content is below 20 ppm. If you’re buying a European import or traveling in Europe, check labels for “wheat (gluten)” in the allergen statement.

For medications, the FDA does not require gluten labeling on drugs — check GlutenFreeDrugs.com or call the manufacturer.