What is cod liver oil? Is it a medicine called Yikexin?

In a narrow sense, cod liver oil is an oil extracted from the liver of marine fish. Broadly speaking, cod liver oil also includes the liver oil of whales, seals and other marine animals. It is a yellow transparent liquid at room temperature, with a slight fishy smell. It is often used to prevent and treat night blindness, keratomalacia, rickets and osteomalacia, and also has protective effect on epidermal tissues such as upper respiratory mucosa. It is mainly composed of fatty glycerides with high unsaturation, in addition to a small amount of phospholipids and unsaponifiable substances. Cod and turbot are traditional raw materials for producing cod liver oil in the world. China mainly uses sharks, rays, large yellow croaker, mackerel and bamboo pod fish.

Main components, functions and indications of cod liver oil

Cod liver oil contains vitamins A and D, and is often used to prevent and treat vitamin A and vitamin D deficiency.

Vitamin A plays an important role in maintaining night vision and the integrity of epithelial cells. Lack of vitamin A can lead to dry skin, keratosis of hair follicles, dry eye and night blindness. Vitamin D can help the absorption of calcium and promote bone calcification. Vitamin D deficiency can produce vitamin D deficiency rickets. In addition to food, normal people's skin also contains a kind of 7- dehydrocholesterol, which can also be converted into vitamin D3 under ultraviolet irradiation, so more sun exposure can also prevent rickets.

Children's bones are growing and developing, and they need a certain amount of vitamin D every day. For children, it is beneficial to take a proper amount of cod liver oil every day (3-4 drops of concentrated cod liver oil every day), especially in winter in northern areas. How long it takes depends on the child's physical development. Taking cod liver oil with the ratio of vitamin A to D exceeding 3 ~ 4 ∶ 1 for a long time will easily lead to excessive intake of vitamin A and poisoning.

Please refer to each product manual or follow the doctor's advice for specific administration methods.

Indications of cod liver oil

1. Used as a nutritional agent for tuberculosis patients, convalescents after illness and infants and parturients.

2. For night blindness, rickets, xerophthalmia, rickets and other patients lacking vitamins A and D. ..