Garlic (Allium sativum) is among the oldest of all cultivated
plants. The garlic compounds appear to target multiple pathways,
including the mutagenesis inhibition, enzyme activities
modulation, inhibition of DNA adduct, affecting the intrinsic
pathway for apoptotic cell death and cell cycle machinery which
may all contribute to their anticancer activities
It has been suggested
that anticancer effect is due to the organosulfur compounds
in the garlic and act through induction of phase II
detoxification enzymes.