Improvements in cardiovascular risk factors and endothelial function from walnuts are well documented.  The young men eating walnuts in the study conducted by Dr. Robbins experienced improved blood lipid profiles which reinforces these previous studies and provides one more reason to include walnuts in the daily diet.

This randomized, parallel two-group dietary intervention trial evaluated the effect of 75 grams of walnuts/day on semen quality.  The study included 117 healthy young men who routinely eat a Western-style diet.  Approximately half consumed the 75 grams of walnuts per day for 12 weeks, while the remaining half served as the control group. After 12 weeks, compared to the control group, the walnut group experienced improvement in sperm vitality, motility, and morphology – key components in male fertility.

For more industry information, health research and recipe ideas, visit www.walnuts.org.

[1] Anderson JE, Farr SL, Jamieson DJ, Warner L, Machaluso M. Infertility services reported by men in the United States: national survey data. Fertil Steril. 2009;91:2466-2470.

[2] Please note: One ounce of walnuts provides 18g of total fat, 2.5g of monounsaturated fat, 13 g of polyunsaturated fat, including 2.5 grams of alpha linolenic acid - the plant based omega-3; 2g of fiber; 4g of protein, 3.68 mmol/28 g of antioxidants. (http://www.nal.usda.gov/fnic/foodcomp/cgi-bin/list_nut_edit.pl)

[3] Nair KS, Irving BA, Lanza IR. Can dietary nitrates enhance the efficiency of mitochondria? Cell Metab. 2011 Feb 2;13(2):117-8.