Muscle building agent and preventive or remedy for muscle weakening

摘要

In accordance with the present invention, there can be provided a muscle building agent, a preventive or therapeutic agent for muscle wasting, food and drink or feed for muscle building or for prevention or treatment of muscle wasting, and a food and drink additive or a feed additive for muscle building or for prevention or treatment of muscle wasting which contain cytidine diphosphate choline or a salt thereof.