Seventy million couples worldwide experience infertility or lowered fertility. Up to half of these issues are due to the male partner. Now, help can be in a handful of nuts. New research shows that walnuts provide key nutrients that may be essential in male reproductive health. The research published on line in Biology of Reproduction Papers-in-Press demonstrates that a daily diet of 75 grams of walnuts improved sperm vitality, motility, and morphology in a group of healthy young men between 21-35 years of age.
Walnuts are the only nut that are an excellent source of ALA (alpha-linolenic acid), a plant-based omega-3 fatty acid. The study reported higher amounts of ALA provided by walnuts correlated with less frequent abnormal cell sperm chromosome numbers which can result in genetic abnormalities such as Down syndrome.
Walnuts also have high antioxidant content, along with numerous micronutrients may work together synergistically. Another added benefit of eating walnuts is improvements in cardiovascular risk factors. The men in the study showed improved blood lipid profiles.
Source: Robbins WA, Xun L, FitzGerald LZ, Esguerra S, Henning SM, Carpenter CL. Walnuts improve semen quality in men consuming a Western-style diet: randomized control dietary intervention trial. Biology of Reproduction, 2012; (in press) DOI: 10.1095/biolreprod.112.101634
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