Trace Gluten in Your Favorite "Gluten-Free" Foods

Most products marketed as "gluten-free" still contain a tiny bit of gluten ... some more than others. And people with celiac disease and non-celiac gluten sensitivity can have very different reactions (or no reaction at all) to these trace amounts of gluten in our foods.

If you find yourself experiencing gluten reactions to foods labeled "gluten-free," you may need to limit the amount of trace gluten in your diet. But how do you do that?

How to Find Trace Gluten

First, you'll need to understand how these foods specifically marked "gluten-free" still are allowed to contain some gluten. You'll also need to learn how this trace gluten is measured, and how you might react to it. 

In the following table, you'll find major manufacturers of "gluten-free" products, plus the gluten parts per million (ppm) to which those products are tested. Note: products listed are reported as containing less than the stated level of gluten — for example a GF-10 product reportedly contains less than 10ppm of gluten, while a GF-20 product reportedly contains less than 20 ppm of gluten.

This information is provided by the companies themselves, as well as by organizations that offer gluten-free certification.

Gluten PPM Table

Company "Gluten Free" Products Gluten PPM Level Source of Information Notes
Aleia's Gluten-Free Foods Breads, bread crumbs, cookies, croutons, stuffing GF-10 Certified by GFCO and the GFMP  
Amy's Kitchen Frozen meals, soups, pizzas, snacks GF-20 Reported by company Shared facility
Applegate Farms Organic and natural meat products GF-10 for GF chicken nuggets, tenders, and corn dogs GF-20 for other products Company report/GFCO certified GFCO-certified for chicken nuggets, chicken tenders, and corn dogs but not for other products
Bakery on Main Granola and energy bars GF-10 GFCO-certified Some products contain gluten-free oatmeal or oats
Ball Park Franks Hot dogs GF-? Reported by company Ball Park Franks says it will list any gluten ingredients on the label
Bar-S Hot dogs GF-? Reported by company Bar-S corn dogs contain gluten; others contain no gluten ingredients
Ben & Jerry's Ice cream and frozen desserts Some flavors are GF-10 Some flavors are GFCO-certified Several flavors, including Cherry Garcia and Phish Food, now carry the gluten-free certification logo.
Betty Crocker Gluten-Free Bisquick, baking mixes GF-20 Reported by company Gluten-free facility; one product tested below GF-5 by Gluten-Free Watchdog
Breyer's Ice cream and frozen desserts N.A. Company reported Breyer's, a Unilever company, states that most of their ice cream is naturally gluten-free, including classic flavors like Natural Vanilla, Chocolate, and Natural Strawberry. They are currently updating their packaging to make it easier to identify products that are gluten-free.
Boar's Head Cold cuts, luncheon meats, cheese, hot dogs GF-20 Reported by company Everything except for soups (which contain gluten) is made in a separate, gluten-free facility, and the company works with its suppliers to obtain GF supplies
Bob's Red Mill Flours, mixes, baking supplies GF-20 or GF-10 Reported by company; some products are GFCO-certified Products marked with a red GF logo are processed and packaged in a dedicated facility and batch tested. Others are GFCO-certified.
BOLD Organics Frozen pizza GF-5 Certified by CSA Pizzas also dairy-free
Canyon Bakehouse Bread, focaccia, buns, muffins GF-5 Reported by company Gluten-free facility; in-house and independent testing of products
Chobani Yogurt Yogurt GF-10 Certified by GFCO  With the exception of a few varieties with sidecar mix-ins.
Country Life Vitamins Vitamins and supplements GF-10 Certified by GFCO  
Dove Chocolate Chocolate bars, ice cream GF-20 Reported by company Always read the label, as some flavors contain gluten.
Dreyer's/Edy's Ice cream and frozen desserts GF-20 Company reported Dreyer's and Edy's will label products "gluten-free" that are considered to meet standards. As a general rule, gluten is only present in added bakery products. The exception is Slow Churned French Silk ice cream, which contains gluten in its natural flavors.
Eat Smart/Snyder's of Hanover Potato chips and vegetable chips GF-10 Certified by GFCO  
Endangered Species Chocolate Chocolate bars GF-10 GFCO-certified All flavors of Endangered Species chocolate are gluten-free.
Ener-G Breads, crackers, cookies, cereal, flours, mixes GF-5 Reported by company  
Food Should Taste Good Chips and snack foods GF-10 GFCO-certified  
Freeda Vitamins Vitamins and supplements GF-5 Certified by CSA  
Frito-Lay Chips, snacks GF-20, GF-? Reported by company Company tests products on its gluten-free list to GF-20; other products contain no gluten ingredients but are not tested
General Mills Chex cereals and other products GF-20 Reported by company Some products manufactured on shared lines, others manufactured in the gluten-free section of a shared facility. Cheerios are made by General Mills. This product contains oats and has been subject to a recall due to significant cross-contamination.
Glutenfreeda Foods/Lilly B's Hot and cold cereals and frozen foods GF-5 Reported by company Gluten-free facility, stringent testing protocol - foods always test below 5ppm and generally below 2.5ppm
Gluten-Free Pantry Baking mixes GF-10 Reported by company Gluten-free facility
Glutino Bread, pasta, cereal, snacks, frozen meals GF-10 Reported by company  
Häagen-Dazs Ice cream and frozen desserts GF-20 Reported by company Häagen-Dazs says it uses gluten-containing ingredients only in obvious places, such as in Chocolate Chip Cookie Dough ice cream.
Kettle Brand Potato chips GF-10 GFCO-certified Kettle Brand® Potato Chips are gluten free and certified by the Gluten-Free Certification Organization (GFCO).
King Arthur Flour Gluten-free mixes and flour products GF-10 GFCO-certified Products made in a dedicated gluten-free facility
Kinnikinnick Foods Breads, cookies, mixes, muffins, snacks, pizza shells GF-5 Reported by company Gluten-free facility; in-house testing of ingredients, finished products
Kraft Foods Wide range of food products GF-20, GF-? Reported by company Kraft products labeled "gluten-free" meet GF-20 standards; otherwise, Kraft will disclose gluten ingredients but not potential cross-contamination
Miller's Mustard Flavored mustard GF-5 Certified by CSA  
Nabisco GOOD THINS Rice crackers GF-10 All 8 flavors of GOOD THINS are certified gluten free by GFCO  
Pamela's Products Baking mixes, cookies, biscotti GF-10 Reported by company Pamela's products consistently test at 10 ppm or below.
Pillsbury Ready-to-bake dough products GF-20 Reported by company Pillsbury is made by General Mills, which uses some shared facilities
POPchips Potato chips GF-10 GFCO-certified  
Rudi's Gluten-Free Breads, rolls, tortillas GF-10 Certified by GFCO Rudi's has a dedicated gluten-free bakery in Boulder, CO with state-of-the-art equipment and ovens.
Sabrett Hot dogs, sausage, salami, corned beef GF-10 Certified by GFCO Cocktail franks in pastry are not gluten-free
Scharffen Berger Chocolate Gourmet chocolate bars GF-20 Reported by company Scharffen Berger is owned by Hershey's
Snyders of Hanover Pretzels GF-10 Certified by GFCO  
So Delicious Frozen desserts, nut milk, yogurt GF-10 Most of So Delicious frozen desserts and all of their plant-based beverages and cultured products are certified by GFCO  
Three Bakers Breads, pizza, buns GF-10 GFCO-certified Gluten-free facility
Turkey Hill Dairy Ice cream GF-20 Reported by company Turkey Hill's website states that, "If your product contains wheat, then it contains gluten."
Udi's Gluten-Free Breads, granola, rolls, cookies, muffins, pizza GF-10 Certified by GFCO Gluten-free facility
Wellshire Farms Ham, hot dogs, lunch meats, bacon, sausage GF-10 GFCO-certified All vendors comply to a strict allergen control policy in which all machinery is completely washed down with a hot water rinse before and after production.  
1 Source
Verywell Fit uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. Lee HJ, Anderson Z, Ryu D. Gluten contamination in foods labeled as "gluten free" in the United States. J Food Prot. 2014;77(10):1830-1833. doi:10.4315/0362-028X.JFP-14-149

By Jane Anderson
Jane Anderson is a medical journalist and an expert in celiac disease, gluten sensitivity, and the gluten-free diet.