The people with a specific genetic susceptibility to lung cancer may be
able to trim their risk by eating vegetables from the cabbage family,
new research suggests.

There sere several previous observational studies had shown that
cruciferous vegetables, such as cabbage, broccoli and sprouts,
protected against lung cancer.

Actually the apparent value of cruciferous vegetables lies in the fact
that they are rich in isothiocyanates, which have been shown to have a
chemopreventive effect against lung cancer.

The isothiocyanates are removed from the body by
glutathione-S-transferase enzymes, which are produced by the genes
GSTM1 and GSTT1. People who have inactive forms of these genes have
higher levels of isothiocyanates.

The American Cancer Society already recommends that people eat plenty
of fruits and vegetables. The specialist sya that "the evidence for any
specific fruits/vegetables and cancer risk is pretty patchy."

"We clearly know that there is a genetic susceptibility to lung
cancer," the specialist said.