The old chicken head is poisonous and cannot be eaten.

Nowadays, chicken heads, duck heads, fish heads, and goose heads have become fashionable delicacies on the dining table. As everyone knows, most of these poultry and fish heads are poisonous.

There is a folk proverb in our country: A chicken head is better than arsenic in ten years. Why do chicken heads become more toxic as the chicken gets older? Medical experts analyzed that the reason is that chickens eat harmful heavy metal substances when pecking. These heavy metals are mainly stored in brain tissue. The older the chickens are, the more they are stored and the more toxic they are. If the consumer consumes too much or for a long time, it may cause accumulation poisoning. In the same way, duck heads, goose heads, etc. should not be eaten too much or too often.