The results, presented at the 34th Annual Meeting of ESHRE in Barcelona, showed that a diet rich in nuts can boost sperm count almost 20 per cent, sperm vitality almost five per cent, sperm motility by six per cent, and morphology by one percent.
The trial involved measuring conventional semen parameters and molecular changes over a 14-week period. The decline has been linked to factors including pollution, smoking, and unhealthy aspects of the Western-style diet, the study authors said.
Random dietary assignments in the study found that subjects randomised to the nut group had significant improvements in their sperm.More news: Nigerian Captain Played World Cup Match While Kidnappers Held His Dad Hostage
About one in seven couples have difficulty getting pregnant and about 40-50% of cases of infertility are attributable to men.
In General they are divided in 110 healthy men aged 18 to 35 years into two groups, says the American journal of Clinical Nutrition.
In this study subjects randomized to the nut group had significant improvements in their sperm count, vitality, motility and morphology (shape).
A diet rich in nuts can boost sperm count by 20%.More news: Kyrgios eases into Wimbledon second round
Sperm and blood samples were analysed at baseline and after 14 weeks of intervention.
"Including nuts in a regular diet significantly improved the sperm count, vitality, motility, and morphology, partly explained by a reduction of the DNA fragmentation", scientists wrote in a release.
"We can't yet say that", said study co-author Albert Salas-Huetos of the Rovira i Virgili University in Spain. This parameter is suggested as something that is often associated with male infertility. For the analysis, the researchers recorded not only the quality of the sperm but also the changes that occurred in several molecular factors, including sperm DNA fragmentation.
The results showed significantly higher levels of sperm count, vitality, movement and morphology among the men in the 60 g/day nut diet than in those following their usual diets free of nuts. A handful of nuts every day will go a long way in improving male fertility.More news: How Rajkumar Hirani Transformed Ranbir Kapoor Into Sanjay Dutt! Watch Video Here
So should men hoping to conceive a baby - either naturally or with IVF - add nuts to their everyday diet? "We can't yet say that", said Salas-Huetos, "based exclusively on the results of this study".