Corn Fermented Protein (CFP) is the first commercially viable new source of high level (>50%), high quality vegetable protein, developed in the past twenty years and available for feeding to livestock, aquaculture, and companion animals. The protein product is derived from the sustainable fuel bioethanol production process and as a derivative of an industrial process is not in direct competition with food production. CFP has a low carbon index compared with a range of traditional protein products. This chapter describes the application of corn fermented protein in feed formulations for poultry.