Choline chloride Corn Cob is obtained by thoroughly spraying and mixing choline chloride liquid on a corncob meal and then applying a drying process to lower the moisture content. Choline is a vital component in animals. It belongs in the vitamin B group, classified as a B4 Vitamin. Choline is vital because of its status as vitamin and cannot be replaced by other materials. Choline chloride is manufactured artificially and is easily dissolved in water.