Walnuts Appear to Improve Sperm Quality in Healthy Men

A randomized, parallel, 2-group, dietary intervention trial shows that daily consumption of 75 g of whole-shelled walnuts appears to have positive effects on the vitality, morphology, and motility of sperm in healthy men after 12 weeks.

Walnut02The study was conducted by Wendi A. Robbins, PhD. and colleagues from the University of California, Los Angeles. 120 healthy men between ages of 21 and 35 years were recruited. Approximately 50%

of the men were randomly assigned to a control group, the other 50% were assigned to walnut supplementation group for a 12-week trial. The authors revealed that sperm vitality, motility and morphology were significantly improved in the walnut group compared with the control group after 12 weeks. In addition, serum omega-3 and omega-6 fatty acid levels were significantly improved in the walnut group after 12 weeks. The prevalence of sperm missing a sex chromosome were significantly lower in the walnut group after 12 weeks of supplementation. (read more)

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