A distinction can be made between 3D Cod Liver Oil Milk and Cod Liver Oil in terms of ingredients, indications and side effects. 1. Ingredients: 3D cod liver milk mainly contains vitamin A, vitamin D and vitamin C; while cod liver oil mainly contains vitamin A and vitamin D. 2. Indications: Cod liver oil is mainly used for the treatment of rickets, night blindness, pediatric tetany, etc.; and three-dimensional cod liver oil milk is mainly used for the prevention and treatment of adults due to vitamin A and D, C deficiency caused by various diseases, such as night blindness, rickets, osteochondrosis, ocular dryness and so on; 3. Side effects: both are not recommended for long-term use, may cause chronic poisoning and other manifestations. Three-dimensional cod liver oil milk may cause gastrointestinal discomfort, etc.; and long-term use of cod liver oil may cause bone and joint swelling, skin itching, fever, headache and other manifestations of chronic poisoning. It is worth noting that although it is a vitamin supplement drug, it is recommended to use it under the guidance of a doctor and not to take it blindly.