Sperm!

Has anyone tried fatty fish for sperm count and potency?
I just read men who ditch fatty dairy  and  red meat (even for two weeks) 
 And instead ate a lot of fish, are more likely to be potent fertilizer!! The boost is more than 65% 
It also said that men who had a fine sperm count could benefit from a diet change. 
I personally know a guy (a fitness enthusiast ) who only eats fish and chicken. He is responsible for THREE accidental pregnancies.