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Nut consumption improves sperm count, motility and morphology: Study
Many environmental and lifestyle factors have been implicated in the decline of sperm quality, with diet being one of the most plausible factors identified in recent years. Moreover, several studies have reported a close association between the alteration of specific sperm DNA methylation signatures and semen quality. To date, however, no randomized clinical trials (RCT) have been published that assess the effects of diet on these changes in the function of sperm DNA.
Researchers from the Human Nutrition Unit of the Universitat Rovira i Virgili, the Pere Virgili Institute of Health and CIBERobn , and researchers from the University of Utah have found that inclusion of a mix of nuts for 14 weeks significantly improved the sperm count, viability, motility, and morphology.
They evaluated for the first time the effect of a short/middle-term consumption of a mixture of tree nuts (almonds, hazelnuts and walnuts) on sperm DNA methylation patterns in healthy individuals reporting eating a Western-style diet.
The research has been published in the scientific journal Andrology.
This new study was conducted in 72 healthy, non-smoking, young participants from the FERTINUTS trial (nut group, n=48; control group, n=24) .The researchers observed that the methylation of 36 genomic regions was significantly different between baseline and the end of the trial only in the group that consumed nuts, and 97.2% of the regions displayed hypermethylation.
According to the researchers, these findings provide the first evidence that adding nuts to a regular Western-style diet impacts sperm DNA methylation in specific regions.
Albert Salas-Huetos (who is now working at Harvard University, USA), the first author of the article states, that "This work demonstrates that there are some sensitive regions of the sperm epigenome that respond to diet, and which can result in changes in sperm and in its ability to fertilize". Researchers also point out that the potential health benefits of the findings warrant further study to verify the results found in other populations.
For further reference log on to:
Reference: Salas-Huetos A, James ER, Salas-Salvadó; J, Bulló; M, Aston KI, Carrell D, and Jenkins TG. Sperm DNA methylation changes after short-term nut supplementation in healthy men consuming a Western-style diet. Andrology, 2020; In Press.
DOI: 10.1111/andr.12911
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751