A whole phytocomplex concentrate (W.P.C.) composed of a standardized extract of the Cynara scolymus (artichoke) leaf with potential antioxidant, protective and chemopreventive activities. Artichoke W.P.C. is high in flavonoids and polyphenols, such as caffeoylquinic acids, which are mainly responsible for the pharmacological effects of the extract. Artichoke W.P.C. also contains protein, fiber, vitamins, minerals, numerous enzymes, volatile oils, phytosterols and polyunsaturated fatty acids.