Freshness Preserved By BHT And TBHQ

BHT (butylated hydroxytoluene) and TBHQ (tert-butylhydroquinone) are synthetic antioxidants. They are produced through chemical synthesis, often involving petroleum-derived compounds.

These compounds are added to foods to prevent fats and oils from spoiling, which helps extend shelf life. They are commonly found in fatty foods like fried snacks, baked goods, and processed meats where rancidity is a concern.

In the U.S., BHT and TBHQ are approved food additives. Regulatory bodies like JECFA and EFSA have evaluated these antioxidants. Some studies have raised questions about potential health effects, but evidence is mixed and often based on high doses not typical of human consumption. The FDA continues to permit their use at specified levels.