Category: preservative
⚠ Controversial ingredient
Butylated hydroxytoluene, a synthetic antioxidant used as a preservative to prevent fat rancidity.
Like BHA, BHT is a synthetic antioxidant with concerns about long-term safety. Some animal studies have shown tumor-promoting effects, though results are mixed -- other studies suggest potential anti-cancer properties. Banned or restricted in certain countries for food use. Many pet food manufacturers now avoid it in favor of natural alternatives.