TBHQ And Citric Acid Added To Protect Flavor

TBHQ (tertiary butylhydroquinone) is a synthetic antioxidant. Citric acid is a naturally occurring weak organic acid. They are often used together in foods to prevent fats and oils from becoming rancid, which can cause off-flavors and odors.

TBHQ and citric acid are added to foods containing fats and oils to protect flavor and prevent spoilage. They act as antioxidants, slowing down the oxidation process that causes rancidity. They are commonly found in vegetable oils, shortenings, baked goods, fried foods, and snack foods.

TBHQ is approved by the FDA as a food additive and is generally recognized as safe (GRAS) when used within specified limits. JECFA and EFSA have evaluated TBHQ and established acceptable daily intakes. Some studies in animals have raised concerns about potential health effects at very high doses, but these are not considered relevant to typical human consumption levels. Citric acid is also considered safe and is widely consumed in foods and beverages.