Testing for Gluten Contamination

Testing dairy foods for gluten using a Nima sensor? Familiarize yourself with the potential issues

For immediate release August 25, 2023: Consumer-Led Investigation into Potential Issues That Arise When Testing Dairy Matrixes for Gluten with the NIMA Sensor published in the Journal of AOAC International by Tricia Thompson, Adrian Rogers, and Johnna Perry. To read the abstract and for a link to the full free text of this article (click on the pdf icon) please see https://academic.oup.com/jaoac/advance-article/doi/10.1093/jaoacint/qsad092/7238205?login=false. Highlights Slight variations in weight and volume of test materials can result in false positive results when testing dairy matrixes (such as...

Thank You to Thomas Grace & the Bia Diagnostics Team from Gluten Free Watchdog

Gluten Free Watchdog was born a little over 12 years ago. This endeavor came to fruition because of the encouragement of Thomas Grace, CEO at Bia Diagnostics. We had recently completed a study on gluten cross contact in naturally gluten-free grains. While I had access to labs for testing, I wanted to make state-of-the-art gluten testing accessible and understandable to interested consumers with celiac disease and other gluten-related disorders. Thom's positive reaction when I told him what I hoped to...

Brief public summary of Gluten Free Watchdog’s Special Report on Cream Cheese & Nima Sensor Test Results

Please also see the full published article: 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 .......... Authors of the special report: Tricia Thompson, MS, RD, Founder, Gluten Free Watchdog, LLC; Adrian Rogers, Development Manager, BioCheck, UK; Johnna Perry, Gluten Free Watchdog Consumer Subscriber Gluten Free Watchdog recently tested weighed samples of cream cheese, cream cheese spread, yogurt, and soft cheese for gluten using a Nima...

The Need for a Standardized Sample Portion When Testing Food for Gluten Using an LFD: A Case Study

Gluten Free Watchdog along with Adrian Rogers, Bio-Check (UK), and Luke Emerson-Mason (Bia Diagnostics) recently presented an abstract and poster at the AOAC International annual meeting. The abstract and poster are based on testing of Liquid I.V. Hydration Multiplier Strawberry. View full size poster HERE. Abstract: Consumers with celiac disease have access to lateral flow devices (LFDs) to test food for gluten. Erroneous results may occur due to matrix effects and sampling that can cause confusion among consumers and lead to...

Liquid IV: Statement from Gluten Free Watchdog

Gluten Free Watchdog received several complaints about this product from consumers after they tested Liquid IV using lateral flow devices, including EZ Gluten and Nima Sensor and received positive results for gluten.  A consumer's retained sample and a new box of the same flavor of Liquid IV were tested at Bia Diagnostics, LLC (an accredited laboratory) using the fully validated sandwich R5 ELISA, the competitive R5 ELISA, and EZ Gluten test strips. When the product was tested using the sandwich and...

Lessons Learned from 16 Years of Testing Food for Gluten

https://youtu.be/YndPtvzMm_I This video presentation with audio is about 30 minutes long. The focus is on lessons learned from 16 years of testing food for gluten. The positive news is that the vast majority of the hundreds of foods tested through GFWD have tested below 20 parts per million of gluten. There have been a few unwelcome surprises over the years, including the level of cross contact in lentils and the number of products impacted by facial misbranding. We’ve also learned through...