The present invention provides a kind of motility for improving animal or activity or treats or prevents the weak method of animal, the method includes identifying motility or activity to reduce or with weak animal, and to include the composition of one or more medium chain triglycerides (MCT) to animal application for the motility or activity that improve the animal or the effective amount of the weak treatment of the treatment animal. In addition, food compositions can include about the carbohydrate of the protein of 15% to about 50%, the fat of about 5% to about 40%, about 5% to about 50%, and about 1% to about 40% one or more medium chain triglycerides (MCT) Wherein the composition has the moisture content of about 5% to about 20%, and the MCT is to have the motility or activity that improve the animal or the effective amount of the weak treatment of the treatment animal.