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BHT (butylated hydroxytoluene) is an antioxidant preservative additive for edible oils and fats. Each capsule of BHT Plus contains 180 mg of BHT plus 80 mg of ascorbyl palmitate, a fat soluble form of Vitamin C. BHT is a faint relative of vitamin E, and as an antioxidant, it is widely used to protect food from damage by oxidation and microorganisms. It also serves as an anti-aging supplement. What Purpose Does BHT Serve in Nature? BHT is a phenolic compound, a molecule consisting of a phenyl group (−C6H5) bonded to a hydroxyl group (−OH). Phenols are produced by plants and microorganisms. Organisms that synthesize phenolic compounds are responding to ecological pressures, such as pathogen and insect attack, wounding, and UV. As these same phenolic compounds are present in food consumed in human diets and in plants used in traditional medicines of several cultures, their role in human health and disease is a subject of research. Also, some phenols are germicidal and are used in formulating disinfectants. Others possess estrogenic or endocrine disrupting activity. Several other research groups have reported a linear correlation between phenolic content and antioxidant activity, but most natural antioxidative compounds often work synergistically with each other to produce a broad spectrum of antioxidative activities that create an effective defense system against free radical attack. The results converge and confirm that the potential antioxidative activity of the plant C. triflorus was partly due to the naturally occurring BHT in all aerial parts of the shrub.