These are the findings of a new study that shows healthy American men in their 20s and 30s who ate a 75g (2.5 ozs) packet of walnuts a day were able to increase the vitality, motility and structure of their sperm compared to counterparts who did not eat walnuts.
A report on the study appeared online on 15 August in the Biology of Reproduction journal's papers-in-press section.
Infertility and subfertility is a common problem that affects about 70 million couples worldwide. Between a third and a half of cases are due to poor semen quality in the male partner, with scientists giving a number of reasons for this in industrialized societies: pollution, unhealthy lifestyles and the Western-style diet cited amongst them.
Walnuts are rich in polyunsaturated fatty acids (PUFAs), which play an important role in maturing sperm and preserving the integrity of the membrane around the cell which in turn affects its ability to fertilize an egg.
In the Western-style diet, PUFAs are usually found in fish, fish oil supplements, flax seed and walnuts. Walnuts also offer an important source of linolenic acid (ALA), a natural plant source of omega-3.
read complete article at http://www.medicalnewstoday.com/articles/249191.php
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