BHT And Rosemary Extract As Preservatives

BHT (butylated hydroxytoluene) is a synthetic antioxidant. Rosemary extract is a natural antioxidant derived from the rosemary plant. They are often used together to prevent fats and oils in foods from becoming rancid, which can cause off-flavors and odors.

These ingredients are added to foods to act as preservatives, specifically to prevent oxidation. Oxidation can degrade fats and oils, leading to spoilage. They are commonly found in processed foods that contain fats, such as baked goods, cereals, and snack foods.

BHT is approved by the FDA as a food additive and is generally recognized as safe (GRAS). Both BHT and rosemary extract have been evaluated by international bodies like JECFA. While generally considered safe at typical consumption levels, some studies have raised questions about potential health effects at very high doses, though evidence is mixed and not conclusive for humans at normal intake. Regulatory bodies continue to monitor scientific research.