ABSTRACT
Similarly, it has been shown that consumption of cruciferous vegetables is associated with a lower incidence of cancers. Induction of phase II enzymes such as the
glutathione
S
-transferase
(GST) and
quinone reductase
(QR) have been demonstrated in
broccoli
,
cabbage
, and
brussel sprouts
. Many natural isothiocyanates derived from cruciferous vegetables and some fruits have been shown to cause induction of phase II enzymes in cultured cells and rodents.