Natural Products and Their Benefits in Cancer Prevention

The search for new sources of natural antioxidants from plant material may have beneficial therapeutic potential for those diseases associated with oxidative stress, including cancer. Natural products are rich in flavonoids, phenolic, alkaloids carotenoids, and organosulfur compounds, these bioactive components are known to combat oxidative stress-mediated diseases pathogenesis, including cancer. A novel approach for preventing cancer is chemoprevention using natural products for suppression, prevention, or reversion premalignancy before the induction of aggressive cancer. Natural products are fruits, vegetables, grains, spices, nuts, herbs, and medicinal plants. During the last few decades, it was found that cancer risk is decreased by having a diet rich in fruits, vegetables, green tea, and legumes and has led research to discover many plant constituents specially phytochemicals that might help in the protection against oxidative stress and blocking specific carcinogenic pathways.