Study Finds “Gluten-Free” Barley Beers May Contain Celiac-Linked Protein Fragments Missed by Standard Tests A study published in Applied Food Research has found that seven of 21 gluten-free-labeled barley beers contained celiac-linked protein fragments that cleared standard industry safety testing. Researchers identified 44 distinct celiac-linked protein fragments across all samples; 17 of those fragments carried no chemical markers recognized by either of the two standard ELISA tests brewers rely on to certify gluten-free status. Four gluten-free-labeled beers exceeded the European Union’s legal threshold of 20 milligrams of gluten per kilogram when measured by the R5 ELISA test, according to the…

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