Compared to other veggies, researchers think broccoli has a particularly powerful type of compound which gives it an extra cancer fighting kick.
Broccoli may help prevent prostate cancer
Britain's Institute of Food Research has finished the first human trial looking at what broccoli does to the body.
Researchers now believe a chemical in the plant sparks hundreds of genetic changes, activating genes that fight cancer.
Then, at the same time, the chemical seems to also switch off genes that promote tumor growth.
