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It is called tertiary butylhydroquinone (Tbhq), but it often appears on food labels with the abbreviation E319. It is often present in crackers, snacks, fried fast food and in most foods that are part of the boundless galaxy of “processed” foods. No other function, if not to extend the shelf-life: the life of the food from the last stage of production to purchase.
In short, a preservative, which preserves the shape and taste of the food on the supermarket shelf, but at the same time produces immunotoxic effects, that is, it weakens the immune system of its consumer.
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