The present disclosure provides animal feed supplements comprising a therapeutically effective amount of monensin, a solvent, and a mineral mix, wherein the mineral mix is substantially free of monocalcium phosphate. In addition, the present disclosure provides processes of preparing animal feed supplements and animal food compositions comprising such animal feed supplements. The present disclosure provides animal feed supplements comprising a therapeutically effective amount of monensin, a solvent, and an alkaline component. In addition, the present disclosure provides animal food compositions containing such animal feed supplements, and methods for their use.