['To provide evidence-based research information about 47 herbs and natural products that have the potential to protect against the development of cancer.', 'Natural Medicines Comprehensive Database and Lawrence Review of Natural Products-Monograph System. Information about these herbs has been found in evidence-based studies cited in the references.', 'Early research shows that some herbs and natural products appear to have the potential to prevent cancer growth.'] Do herbs or natural products that protect against cancer growth part three of a four-part series?