PURPOSE: An intake inducer, containing a 2-deoxy-D-glucose derivative as an active constituent, capable of exhibiting intake inducing action in an early stage after administration thereof, and solving the decline of physical strength due to anorexia of patients attacked with serious illness and having low toxicity.

CONSTITUTION: An intake inducer containing a 2-deoxy-D-glucose derivative expressed by the formula (X is halogen) as an active constituent. The compound expressed by the formula exhibits intake inducing action in an early stage after administration thereof and has low toxicity. The inducer is used by various administration forms of oral and parenteral pharmaceutical compositions. The dose thereof is preferably within 100W1,000mg/day range administered in 1W3 divided portions a day.