1. Pesticides will accumulate in frogs, and if people eat them, pesticide residues will enter the human body. Pesticide residues will poison the human body through the "food chain", forming chronic pesticide poisoning, leading to various cancers and tumors; It may even lead to congenital malformation in infants.

2. Frogs are also hosts of many parasitic viruses and bacteria, and cooking can not be completely eliminated. Among them, there are two kinds that are harmful to human health, namely Echinopalatine Nematode, Echinococcus mansoni and Diptera. When people eat frog meat with these worms, the worms may shed their skin in human body and turn into third stage larvae or early adults, which will make human body sick.

3. In order to ensure the yield of crops, people are bound to use a lot of pesticides. After frogs eat some lucky pests, pesticides accumulate in frogs. People who eat too much frog meat are prone to food poisoning. This will do harm to human health.

Extended data:

Frogs have a lot of parasites, so it is best not to eat them during pregnancy. If the parasites are not killed, they will directly hurt the fetus and affect its development. In severe cases, they will cause deformity or miscarriage.

Another reason for not encouraging big guys to eat frogs is that frogs, as beneficial insects, are of great benefit to human beings. According to some data, a frog can kill tens of thousands of pests in a growing season, so there is the motto "Frogs are full of ponds and valleys are Man Cang". If we continue to eat frogs regardless of the original ecological laws, it is tantamount to destroying our ecological balance, seriously damaging the harvest of agriculture, and doing no good to the country, society and individuals.

References:

Baidu encyclopedia-frog