The main reason is that sows have a long growth cycle and accumulate more toxins in their bodies, which contain immunoglobulins that are harmful to human health. Especially before giving birth to piglets, the level of immunoglobulins in sows is highest. If we eat such sow meat, it will easily cause anemia, hemoglobinuria and other diseases.

At the same time, because sow meat contains a large amount of estrogen, regular consumption by children and adolescents will affect the normal development of the body and may lead to precocious puberty. Pregnant women should also avoid eating it, as it will affect the development and growth of the next generation of children.

Secondly, the growth period of sows is long, the fiber is thick, and the taste is not good. Moreover, the meat is old, the skin is thick, it is difficult to process, and the nutrients are not easy to absorb. In addition, the fat smell of sow meat is extremely strong. For those who are afraid of fishy meat, it is better not to spit it out, let alone eat it.

Extended information:

Sow pork is allowed to be sold and eaten in the market. According to the "Implementation Measures of the Pig Slaughter Management Regulations" promulgated by the Ministry of Commerce, "the pigs slaughtered in designated slaughterhouses Breeding pigs and late castrated pigs should have relevant information marked on their carcasses and the "Meat Quality Inspection Certificate". As long as they have been quarantined and marked as sow pigs, they can be eaten.

How to choose high-quality pork:

1. Look at the thickness of the fat and skin. If the meat is thicker in fat and the skin is thinner, it means that the pigs were slaughtered larger, which is generally more delicious and will not taste sour; if the meat is thin in fat and the skin is relatively thick, the taste is generally not very good. Therefore, when choosing pork, we can choose one with thicker fat and thinner skin.

2. Look at the color. If the color is bright and bright red, it means the pork is fresh; if the color is dark red, it means it may have been cooked overnight. Therefore, if you want to choose good pork, you can choose one with a brighter color.

3. Check whether there is blood oozing out. If it is fresh pork, blood will not ooze; if it is not fresh pork, blood may ooze. Therefore, if we want to buy good pork, we have to choose those that look cleaner.

4. Smell. If you want to buy good pork, you can also get close to the pork and smell it. If the pork does not have much odor and only has a slight fishy smell, it means the pork is relatively fresh; if you smell a strong fishy smell, it means it is not fresh. The meat quality is not good.

5. Look at flexibility. If you press the good pork gently with your hands, it will return to its original shape, which means the pork is better; if it cannot return to its original shape after pressing, it means the elasticity is not good and the meat quality is not good.

6. Look at the feel. To choose good pork, we can feel the pork with our hands. Fresh and good pork is generally not very wet to the touch, slightly dry or slightly moist, but not sticky in the hand. On the contrary, it means the meat quality is not good.

Reference: Baidu Encyclopedia-Pork