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Testing for Gluten Contamination
02 Apr 2019

What we’ve learned from 15 years of testing food for gluten & 8 years running Gluten Free Watchdog

The vast majority of manufacturers of gluten-free foods are doing it right! 87% of labeled gluten-free foods commissioned for testing through Gluten Free Watchdog test below 5 parts per million of gluten (the lowest level that can be quantified using the R5 ELISA Mendez Method). 96% of labeled gluten-free foods commissioned for testing through Gluten Free Watchdog test below 20 parts per million of gluten. 4% of labeled gluten-free foods commissioned for testing through Gluten Free Watchdog test at or above 20 parts per million...
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21 Mar 2019

Morning musings about testing food for gluten & the Nima Sensor

Please also see: Tricia Thompson, Adrian Rogers, Johnna Perry. Consumer-Led Investigation into Potential Issues That Arise When Testing Dairy Matrixes for Gluten With the NIMA Sensor. Journal of AOAC INTERNATIONAL, 2023; qsad092 https://doi.org/10.1093/jaoacint/qsad092 .......... The following is paragraph form of a tweet thread posted by @GFWatchdog to Twitter on March 21, 2019. A few musings this morning about testing food for gluten & the Nima Sensor. Background, I have been commissioning testing of gluten-free food for about 15 years. Does this make me an expert? No....
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28 Jun 2018

Adrian Rogers from Romer Labs presents: Gluten analysis and the challenges of consumer testing devices

June 28, 2018 Adrian generously agreed to allow us to post his slides from yesterday's Medical Nutrition Practice Group webinar, Gluten analysis and the challenges of consumer testing devices. In this webinar Adrian provides information on: Gluten Analysis: The challenges Current Methods of Analysis Consumer testing devices: Pros and Cons Gluten Detective : Opinion Conclusions If a link to the audio becomes available, it will be posted. Update: Here is the link to the audio and slides https://eatright.webex.com/eatright/ldr.php?RCID=febe8b09e673ea25bc4505779f32450f  If you have any questions for...
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06 Nov 2017

Gluten-Free Quaker Oats & Testing with the Nima Sensor, R5 ELISA, & G12 ELISA

November 6, 2017 Please read this entire document very carefully. The information is presented in bullet point format to hopefully make complicated information a bit easier to understand. Background: A consumer tested a carton of Quaker Oats labeled gluten-free with the Nima Sensor consumer-testing device. Two samples—one cooked and one raw were tested. Both results were “gluten found”. The consumer sent all remaining product in the original container to Gluten Free Watchdog. Gluten Free Watchdog sent the product to an independent...
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13 Sep 2017

Article Summary: Gluten-Free Labeling: Are Growth Media Containing Wheat, Barley, and Rye Falling through the Cracks?

Article Summary: Gluten-Free Labeling: Are Growth Media Containing Wheat, Barley, and Rye Falling through the Cracks? Tricia Thompson, Melinda Dennis, Luke Emerson. J Acad Nutr Dietet. 2017. In Press.  Background: Bacteria are used in a variety of products, including probiotics. These microorganisms may be grown on media that may include ingredients derived from gluten-containing grain (ie, wheat, barley, and rye). Historically, some concern has been expressed in the celiac disease community that the use of gluten-derived/ gluten-containing growth media may result in...
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