Pteridium aquilinum contains not only phenyloxalic acid, Pteridium aquilinum lactam, flavanol compounds, calamine compounds, but also strong carcinogen Pteris!

Animal feeding experiments show that Pteridium aquilinum can induce gastric cancer, intestinal cancer, breast cancer, bladder cancer and leukemia in rats.

The carcinogenic test of processed bracken shows that even processed bracken can induce cancer. In the cooking process, the molecular structure of carcinogens in bracken can not be destroyed, and even some other new compounds that may cause cancer have been found.

Details of other carcinogenic foods

1, germinated potatoes

Germinated potatoes will produce a lot of solanine, which will be poisoned after people eat it.

2. Raw green beans

Raw mung beans contain saponins, which will be poisoned after people eat them.

3. Green tomatoes

Immature tomatoes contain alkaloids and people will be poisoned after eating them.

4. rotten ginger

Rotten ginger can produce a carcinogen called safrole, which can induce liver cancer and esophageal cancer.

5. Fresh lentils

Fresh lentils contain saponins and alkaloids, which are toxic, but will dissolve when heated.

References:

People's Daily Online "Pteridium aquilinum 100% Carcinogenic Vegetables List"