Trace Gluten in Your Favorite "Gluten-Free" Foods

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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?

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.

Please also note that I haven't tested these products myself; instead, I'm basing this table on information provided by the companies themselves, plus data provided by organizations that provide 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  
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, GF-20 for other products Company report/GFCO certified GFCO-certified for chicken nuggets 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 N.A. Company statement Ben & Jerry's will call out any gluten-containing ingredients on the product's label and works with suppliers to verify ingredients but does not test for gluten in its finished products.
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
Bisquick gluten-free baking mix GF-20 reported by company Bisquick is made by General Mills, which uses some shared facilities
Breyer's Ice cream and frozen desserts N.A. Company reported Breyer's, a Unilever company, will disclose gluten-containing ingredients clearly on the label but does not test for PPM levels in its finished products. Breyer's does not label its products "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 reported by company Gluten-free facility; products share lines with gluten-free oats
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
Canyon Bakehouse bread, focaccia, buns, muffins GF-5 reported by company Gluten-free facility; in-house and independent testing of products
Cheerios cereals gluten-free cereal GF-20 reported by company Cheerios are made by General Mills. This product contains oats and has been subject to a recall due to significant cross-contamination
Chobani Yogurt yogurt GF-10 certified by GFCO  
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.
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
Glutenfreeda Foods 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-20 reported by company Kettle makes only gluten-free chips, and manufactures them in a GF environment, according to the company
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 rice crackers GF-20 made in shared facility  
Pamela's Products Baking mixes, cookies, biscotti GF-5 reported by company Pamela's reports that it tests everything to ensure it falls below 5 parts per million of gluten.
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 Shared facility
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 Certified by GFCO  
Three Bakers breads, pizza, buns GF-5 reported by company Gluten-free facility
Turkey Hill Dairy Ice cream GF-20 reported by company Turkey Hill marks flavors it considers to meet gluten-free standards with "gluten-free."
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  
Whole Foods Gluten-Free Bakehouse breads, rolls, pies, muffins, pastries GF-5 Reported by company Gluten-free facility
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  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):1830-3. doi:10.4315/0362-028X.JFP-14-149