What is BHA/BHT?
BHA and BHT are the most common human and pet food preservatives. These antioxidants protect fats and oils from becoming rancid and developing an off flavor. The FDA has determined that these antioxidants are safe and effective when used in the recommended quantities of less than 200 ppm of the fat or oil content. Federal officials carefully monitor the extent of consumption of the additives, and the results of any new research to assure its continued use within safe levels. Many dry pet foods as well as human foods contain BHA and BHT. Human foods that utilize BHA and BHT include: bread, cheese, crackers, margarine, frozen and dried fruit, potato chips, cake mixes, drink mixes and meat.