A new study suggests a nut-rich diet helps produce more sperm.
Scientists have claimed that healthy males aged between 18 to 35, who have an intake of 60 grams or more of a mixture of almonds, hazelnuts and walnuts, are more likely to harvest stronger semen.
The research presented by Dr Albert Salas-Huetos from the Human Nutrition Unit of the Rovira i Virgili University in Spain, was based on a trial which examined the changes in sperm over a 98-day period.
Sky News reports that the researchers' results ''support a beneficial role for chronic nut consumption in sperm quality''.
The research was carried out after a slump in the quality and production of sperm in western countries.
However, Salas-Huetos said it's impossible for him to be able to recommend nut supplements to men struggling to have children, ''based solely on the results of this study''.
He concluded: ''But evidence is accumulating in the literature that healthy lifestyle changes such as following a healthy dietary pattern might help conception - and of course, nuts are a key component of a Mediterranean healthy diet.''