An Israeli poultry wholesaler
An Israeli poultry wholesaler. Photo by Archive: Tomer Neuberg/Jini
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Kosher chicken might be less safe to consume than conventional poultry, a new study has found.

The study, published recently on F1000Research.com, examined the occurrence of antibiotic-resistant Escherichia coli, “a major human health concern,” in four types of raw chicken: conventional, organic, kosher and those raised without antibiotics.

The study found that kosher chicken, regardless of brand, had the highest frequency of antibiotic-resistant E. coli — nearly twice the amount in conventional products.

It also found no difference in levels of antibiotic resistance between strains found on organic and conventional chicken.

The study, conducted by researchers with Northern Arizona State University, screened for all types of E. coli strains, most of which are not harmful to humans, according to Food Safety News.

The findings go against widespread consumer perception that kosher food is healthier and cleaner.

The reasons for the greater levels in kosher poultry than non-kosher were not clear. The authors wrote that their research “suggests that use of antibiotics in the kosher production chain is common and that it may be more intensive than use of antibiotics among conventional, organic or RWA practices.”

The article suggested more studies are needed to test whether antibiotic resistance among kosher products is consistently higher than in other categories.

F1000 Research calls itself the first “open science journal for life scientists.”