Imported cod liver oil typically contains antioxidants to preserve its quality, and among the options you mentioned, INS 307 DL Alpha tocopherol (a form of vitamin E) is the most commonly added antioxidant before shipment.

🧪 Antioxidants in Cod Liver Oil

• INS 307 DL Alpha tocopherol is widely used because it is a natural antioxidant that helps prevent oxidation of the oil.
• INS 320 Butylated Hydroxyanisole (BHA) and INS 310 Propyl Gallate are synthetic antioxidants but are less commonly used in cod liver oil supplements intended for import to India.
• Product ingredient lists often highlight DL Alpha tocopherol as the preferred antioxidant for its safety and efficacy.

It is advisable to check the specific product label or contact the manufacturer for confirmation. For personalized advice or concerns about supplement ingredients, consulting a clinical nutritionist or a general physician is recommended.