Provided is a method for treating prostate and/or testicular disease, comprising: administering a pharmaceutical composition comprising a zinc-aspartate chelate as an active ingredient to a subject in need thereof, wherein the prostate disease is selected from the group consisting of prostatitis, enlargement of prostate and prostate cancer. The composition for accelerating absorption of metals, comprising a metal-acidic amino acid chelate as an active ingredient. The composition of the present invention has therapeutic effects on prevention and treatment of various diseases arising from a deficiency or shortage of metals, by utilization of a metal-acidic amino acid chelate that exhibits excellent effects of improving delivery and absorption of a drug into target organs, such that pharmaceutical effects of individual metals can be exerted. In particular, a pharmaceutical composition comprising a zinc-aspartate chelate increasing an intraprostatic zinc content as an active ingredient is highly effective for prevention and treatment of prostate and testicular diseases.
