Choline chloride is one of the main agents of the so-called lipotropic substances that prevent or significantly reduce fatty liver infiltration. Choline is also an important source of methyl groups necessary for the ongoing biochemical processes in the body, necessary for fat metabolism and transmission of nervous excitation.

The necessary amount of choline for animals should be provided by its synthesis in the body, as well as additives to feed. The highest need for an additional knee is experienced by a bird in the initial productive period.