New Scientific Evidence Suggests Nuts May Help Improve Sperm Quality

Nuts have an interesting nutrient profile, which has been found to be involved in the modulation of several mechanisms that could also be linked to male fertility. For this reason, this study, recently published in The American Journal of Clinical Nutrition, evaluated the effect of consumption of a 60 g/day mixture of tree nuts (30 g of walnuts, 15 g of almonds and 15 g of hazelnuts) on several sperm quality parameters.
 
The 119 healthy males, aged 18-35, included in the randomized, controlled study were assigned to either a group that followed their usual Western-style diet supplemented with 60 g/day of tree nuts (nut group), or to a group that followed their usual Western-style diet, avoiding the consumption of nuts (control group). Samples and dietary information were collected in four visits throughout the 14 weeks of intervention.
 
The study concluded that the supplementation of a Western-style diet with nuts improved sperm quality parameters among healthy reproductive-aged people.
 
“Regular consumption of nuts seems to improve sperm quality by decreasing DNA fragmentation,” said Dr. Mònica Bulló, researcher at Rovira i Virgili University and principal investigator of this research.
 
The study was funded by the INC through the Annual Call for Research Projects (2015).

Salas-Huetos, A., Moraleda, R., Giardina, S., Anton, E., Blanco, J., Salas-Salvadó, J., & Bulló, M. (2018). Effect of nut consumption on semen quality and functionality in healthy men consuming a Western-style diet: a randomized controlled trial. The American Journal of Clinical Nutrition, 108(5), 953-962.