Men who add nuts to diet can 'significantly improve sperm quality'
Daily Mail
Spanish researchers compared men fed a mixture of tree nuts (almonds, hazelnuts and walnuts) over 14 weeks with a standard Western diet and those who weren't.
https://www.dailymail.co.uk/sciencetech/article-8932903/Men-add-nuts-diet-significantly-improve-sperm-quality.html?ns_mchannel=rss&ns_campaign=1490&ito=1490