Vitamin A is a very important vitamin in the liver, and the eyesight improving effect of the liver is attributed to it. Vitamin A can also promote growth and development, maintain skin health and enhance immunity. Its content is higher in beef liver and sheep liver, followed by chicken liver, duck liver and pig liver, and duck liver is lower. It should be noted that when eating sheep liver, eating more sheep liver is easy to cause vitamin A poisoning.
Because the liver is a large detoxification organ in animals, it is easy to accumulate toxins, so eating the liver should consider safety. Generally speaking, the growth period of large animals such as cattle and sheep is long, so there are more toxins accumulated in the liver, especially in cattle liver. In addition, large-scale cultured animals that are prone to illness should also eat less liver, such as chickens. So relatively speaking, duck liver and pig liver are slightly safer.