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Common Food Additive may Weaken Defenses Against Influenza

Credit: CC0 Public Domain

Research conducted in mice suggests the food additive tert-butylhydroquinone (tBHQ)—found in many common products from frozen meat to crackers and fried foods—suppresses the immune response the body mounts when fighting the flu. In addition to increasing the severity of flu symptoms, the study found evidence that tBHQ exposure could reduce the effectiveness of the flu vaccine through its effects on T cells, a vital component of the immune system.

Researchers say the connection may help explain why seasonal influenza continues to pose a major health threat worldwide. An estimated 290,000-650,000 people globally die from flu-related respiratory problems each year.

“Our studies showed that mice on a tBHQ diet had a weakened immune response to influenz...

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