"The chief differences in fatty acid concentrations were for DHA and
saturated fatty acids. DHA was significantly reduced in all men with
subfertility, regardless of the category, and saturated fatty acids,
particularly stearic acid, increased. Reasons for the lower DHA
concentrations are not clear, but increased peroxidation has been suggested.
However, in one study reporting reduced DHA in sperm of asthenozoospermic
men, DHA was reduced in seminal plasma, but not in serum, suggesting that
diet was not the reason for the reduced DHA.

These data support previous studies suggesting that DHA is important in the
healthy functioning of sperm in humans and animals. Whether increased
dietary DHA would increase its concentration in human sperm, as has been
reported for turkeys and stallions, remains to be fully investigated. One
study in asthenozoospermic men reported no increase in sperm or seminal
plasma DHA concentrations with dietary supplementation up to 800 mg/day for
3 months. If fish is the food of love, men will have a new line."

Aksoy Y, Aksoy H, Altinkaynak K, Aydin HRR, Ozkan A. Sperm fatty acid
composition in subfertile men. Prostaglandins Leukot Essent Fatty Acids
2006;75:75-79. [Pub Med]

MikeV