According to scientists at the University of California, their research has found eating 75 gm of the nuts each day can increase a man's virility and the health of his sperm, a major newspaper reported.
In the research, published in the journal Biology Of Reproduction, it was found men aged between 21-35, who regularly ate walnuts, had sperm with enhanced vitality and movement.
The popular nuts are rich in a natural plant source of omega-3, a type of fatty acid thought to be critical to sperm development.
In pictures: Bollywood celebs who share birthdays
'Kahaani 2' trailer launch photos: Vidya Balan takes an auto ride
Photos: Priyanka Chopra's family, celebs watch 'Ventilator' at MAMI
Photos: Raveena Tandon, Sohail Khan at Marathi film 'Bhay' music launch
SRK-Gauri anniversary: B-Town stars and their non-filmi better halves