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Study: Diet affects quality of sperm

By: Team Ifairer | Posted: 30-12-2019
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Study: Diet affects quality of sperm
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The study examined 15 normal, non-smoking young men, who followed a diet in which they were given all food from the scientists for two weeks. The diet was based on the Nordic Nutrition Recommendations for healthy eating with one exception: during the second week, the researchers added sugar, corresponding to around 3.5 litres of fizzy drinks, or 450 grammes of confectionery, every day. The sperm quality and other indicators of the participants' health were investigated at the start of the study, after the first week (during which they ate a healthy diet), and after the second week (when the participants had additionally consumed large amounts of sugar).

One third had poor sperm motility at the beginning of the test. Motility is one of several factors influencing the quality of sperms, and that of the general population was the proportion of people with low sperm motility studied. The authors were surprised to learn that the motility of sperm of all participants during the research had become natural.

"The study shows that sperm motility can be changed in a short period, and seems to be closely coupled to diet. This has important clinical implications. But we can't say whether it was the sugar that caused the effect, since it may be a component of the basic healthy diet that has a positive effect on the sperm," said Anita Ost.

The scientists have also observed that the tiny RNA fragments associated with sperm motility also changed. They now plan to carry on the research and explore whether there is a connection between male fertility and RNA sperm fragments.

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