Provided are: a deodorizer that has high VOC-adsorbing performance and can exhibit deodorizing properties even in a case in which the deodorizer is kneaded into resin, a deodorizing processed product produced by using the deodorizer, and a method for producing the deodorizer. The deodorizer of the present invention is characterized by including a zeolite represented by the following Formula [1], in which the zeolite is obtained by producing a zeolite and then heating the produced zeolite at a temperature of from 120° C. to 250° C.: xNa2O.Al2O3.ySiO2.zH2O [1]. In Formula [1], x represents a positive number of from 0.5 to 5.0, y represents a positive number of from 80 to 150, and z represents a positive number of from 1 to 20.
