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The Myth of Beer as a High Gluten Food Debunked

Today, beer is the second most popular beverage in the world, after tea. Since the primary raw material for beer is barley – a food that contains gluten, the question arises about the content of this molecule in beer. Although it is a common belief that beer is rich in gluten, research conducted in Croatia has shown quite the opposite results.

To measure the level of gluten in the most commonly consumed commercial types of beer produced exclusively from barley malt in Croatia, a team of experts led by Dr. Lee Pollak and Dr. Darija Vranešić Beder conducted an analysis of 27 different commercial beers available on the Croatian market, of which 5 were radler beers and 2 were dark beers. 

The results of the research presented and published this year at the 51st Croatian and 11th International Symposium of Agronomists held in Opatija reveal that the amount of gluten in most of the tested beers (92.6%) is acceptable and low, not exceeding the legislative provisions that stipulate that food with a gluten content not exceeding 20 mg/kg can be labeled as ‘gluten-free’. This confirms the results of a previous study in the geographically close area of the Republic of Croatia, which showed that 84% of samples meet the conditions of up to 20 mg of gluten per kg of product, thereby debunking the myth of beer as a high gluten food.

A useful piece of information for those suffering from celiac disease and other individuals following a gluten-free diet is that by consuming 3 dL of the beer containing the highest amount of gluten in this study (27.9 mg/kg), they would only ingest 8.37 mg of gluten. The gluten amounts in other beers, with a 3 dL serving, ranged from a satisfactory 1.68 mg to 5.52 mg.  Considering that the tolerance threshold for most affected individuals is 10-20 mg of gluten per day, these values are considered acceptable within a gluten-free diet with responsible consumption. However, careful monitoring of gluten intake from all sources is necessary to ensure the daily dose remains within recommended limits for those affected. When it comes to individuals with gluten intolerance not caused by celiac disease, the threshold values for daily intake are higher, and therefore, the consumption of lager beer should not pose a problem for these individuals.