Did You Know…Preservatives & Immunity

A food preservative used to prolong the shelf life of Pop-Tarts, Rice Krispies Treats, Cheez-Its and almost 1,250 other popular processed foods may harm the immune system, according to a new peer-reviewed study by Environmental Working Group.

For the study, published March 24 in the International Journal of Environmental Research and Public Health, Environmental Working Group (EWG) researchers used data from the Environmental Protection Agencys Toxicity Forecaster, or ToxCast, to assess the health hazards of the most common chemicals added to food, as well as the forever chemicalsknown as PFAS, which can migrate to food from packaging.

EWGs analysis of ToxCast data showed that the preservative tert-butylhydroquinone, or TBHQ, has been found to harm the immune system both in animal tests and in non-animal tests known as high-throughput in vitro toxicology testing. TBHQ is a preservative that is pervasive in processed foods. It has been used in foods for many decades and serves no function besides increasing a products shelf life. Using new non-animal test results from ToxCast, EWG found that TBHQ affected immune cell proteins at doses similar to those that cause harm in traditional studies.

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