Daily fat intake may have a certain relationship with semen quality, and some differences have reached a statistically significant level. Overall, the more fat intake, the lower the sperm density may be. Does that mean that eating more fish for men can protect the quality of sperm?
I saw a microblog forwarded by a female friend saying that because unsaturated fat acid can relieve dysmenorrhea, girls should eat salmon 2-3 times a week. Behind every woman who munches on salmon, there is a man who silently pays the bill. I wanted to help my male compatriots out of the encirclement. After commenting on my microblog, I said that this was groundless, but my friend roast bitterly about my "ignorance of women" on the ground that "sometimes I have to find a reason to eat salmon", which made me very sad.
However, a recent paper I read made my eyes shine, as if male compatriots also had a chance to turn over. In March 2012, Professor Ataman, who specializes in reproductive endocrinology and infertility at Massachusetts General Hospital, and others published a paper in Human Reproduction, believing that the quantity and quality of sperm may be related to fat intake.
Through a questionnaire survey, Ataman counted the number and frequency of food or drink eaten by 99 men in the past year, and collected their semen to analyze the number and activity of sperm. After comparing many data, Ataman found that daily fat intake may have a certain relationship with semen quality, and some differences have reached a significant degree in statistics. Overall, the more fat intake, the lower the sperm density may be. In addition, Ataman also found that ω- The intake of unsaturated fat acids is positively correlated with the proportion of normal sperm morphology (see, the reason why men eat salmon comes).
Interestingly, the types of fatty acids consumed through food do not affect the final fatty acid content in sperm. For those saturated fatty acids, this is easy to understand: since saturated fatty acids are also synthesized in the human body, the content of saturated fatty acids in sperm is more likely to be related to the activity of these fatty acid synthase enzymes than ingested from food.
However, mammals cannot synthesize polyunsaturated fatty acids, so these fatty acids can only be obtained from outside, such as eating fish. However, Ataman found that there was limited connection between food and the level of polynenenebb unsaturated fatty acids in sperm and seminal plasma. He believed that this might be caused by the defective measurement of diet, and another possibility was related to the enzyme of unsaturated fat acid metabolism in the testis. In other words, the mechanism of diet affecting the content of fatty acids in sperm and seminal plasma is still unclear. Ataman believes that this may be the result of the combined effect of diet and metabolism.
Ataman believes that his research has certain limitations: in the research, he obtained the dietary information of these participants through questionnaires. Although some people have discussed the reliability and repeatability of questionnaire survey in nutrition, Ataman still believes that this sampling method may bring some human bias; In the experiment, because each participant only provided semen once, Ataman was also worried that the lack of repeatability of the sample would affect the results of the entire experiment; In addition, Ataman also took into account the possible impact of experimental equipment. Finally, Ataman said that it was necessary to increase the sample size to further determine these research results.
It seems that the research is preliminary, and the mechanism is unclear. It will take some time to truly understand the relationship between fat and sperm quality. However, aside from the scientific significance of this research, it is possible to use it to deceive more fish in daily life - who said that only women can use the name of health care to have a great meal? Men can also have it! And when eating more fish, one can confidently take out this research paper to satisfy all women's doubts. And then again, if I am naive enough to think that women will silently pay for their significant other, then I really don't understand women - this salmon meal will mostly have to be paid for by my male compatriots themselves.
(Intern Editor: Huang Jiazhen)