First, the head of a chicken, I believe you should have heard the old man say that the head of a chicken will compete with poison in ten years, which means that the older the chicken is, the more endotoxin will accumulate on the head of a chicken, and the head of a chicken has no meat, so I suggest eating less.

second, steak: especially medium-rare or medium-rare steak, which also has many parasites, so it is suggested to eat it well-done.

thirdly, eels: eels like to live in dirty sand, and they will feel a strong sandy smell during eating, which is also the reason why many people don't like eating eels. Eel is a parasitic food, so it must be cleaned before eating.

fourth, sashimi: sashimi that has not been cooked at high temperature is likely to have parasites in it, so it is better to eat as little as possible.

fifth, oysters: when it comes to oysters, they are white, tender and delicious. However, all friends who firmly believe that they have cooked oysters at home know that solving oysters is a very cumbersome thing. Oyster itself is a very fishy food, if it can't be cleaned. Not only is it dirty and smelly, but some parasites and germs will continue to appear inside. Even if it is solved by high temperature, it is still not very clean and hygienic. In fact, the temperature at which oysters are roasted on skewers can not be the temperature at which parasites and germs can be eliminated. Therefore, I suggest that you eat kebabs, such as oysters, which are difficult to solve, and it is best or as little as possible.