A composition for improving the fertility of a male, and/or for improving
the quality of the semen produced by a male includes at least one source
of folic acid, preferably 0.05-8 mg; at least one source of zinc,
preferably 5-50 mg; and optionally one or more of vitamin B12, magnesium,
betaine, choline, SAM, vitamin B2, and Vitamin B6; and/or optionally one
or more carriers, excipients and/or adjuvants.