The Ingredients the Food Industry Doesn’t Explain.
TBHQ (tert-Butylhydroquinone) is a petroleum-derived synthetic antioxidant used to prevent fats and oils from going rancid. It extends shelf life in processed foods, especially those cooked in or containing industrial oils. The FDA permits it at concentrations up to 0.02% of a food’s fat content, but that low limit itself signals how potent this chemical is.