Abstract: A group of phytochemical compounds extracted from whole germinated or not germinated black beans (Phaseolus vulgaris L) and/or their dry milled fractions such as seed coats or hulls and cotyledons is described. These phytochemicals are classified as phenolics, such as polyphenols, flavonoids, coumarins, and tannins, triterpenes such as saponins, phytosterols and other antioxidant compounds that proved to be effective to decrease cancer proliferation of hormone dependent mammary (MCF-7), hormone independent hepatic (HepG2) and colon (Caco2) cancer cells. They also effectively protect against chemical damage induced with DMBA and furthermore prevented cancer induced by this chemical in Wistar rats and also reduced tumor size when consumed after tumor detection. Methanol, acetone, ethanol, water and mixtures of these solvents were used to obtain the extracts from raw, cooked, and germinated black beans of different varieties, both from the whole grain and the hulls.