Does long-term coffee drinking affect men’s fertility?

Effects of long-term coffee drinking on fertility in men

Coffee is one of the most popular drinks in the world, and is enjoyed by hundreds of millions of people every day. However, there has been controversy over the effects of coffee on fertility. In particular, whether long-term coffee drinking in men will have a negative impact on fertility has attracted much attention. This article will explore the potential risks that long-term coffee drinking in men may have on fertility.

1. Caffeine and sperm quality

Research suggests that consuming too much caffeine may have a negative impact on sperm quality. A study published in the Journal of the American Medical Association found that men who consumed more than 250 mg (about 2-3 cups) of caffeine per day had lower sperm counts and motility, as well as higher rates of sperm deformities.

This adverse effect may be related to caffeine interfering with the testicular endocrine system. The testicles are the main organs in the male body that produce sperm and androgens (such as testosterone). Under normal circumstances, testosterone levels play an important role in the quality and quantity of sperm. However, caffeine may interfere with this process and cause abnormal sperm development.

2. Caffeine and male reproductive hormones

In addition to affecting sperm quality, caffeine may also have adverse effects on male reproductive hormones. Studies have shown that consuming large amounts of caffeine can lead to a decrease in testosterone levels.

Androgens play a vital role in the male body. Not only do they promote sperm production and development, they also maintain normal libido and erectile function. If androgen levels are too low, infertility or other reproductive problems may result.

3. Caffeine and Erectile Function

Another concern is whether caffeine can have a negative impact on male erectile function. A study published in the International Journal of Urology found that men who consumed more than 85 mg (about 1 cup) of caffeine per day had a higher rate of erectile dysfunction.

This adverse effect may be related to the effect of caffeine on vascular function. Erection is caused by blood flow into the corpus cavernosum, and caffeine can constrict blood vessels and reduce blood flow. Therefore, consuming too much caffeine may cause erectile dysfunction.

4. Recommendations and conclusions

Although there are some studies that suggest that long-term coffee drinking in men may have a negative impact on fertility, it is important to note that these findings are inconsistent and most of the studies are observational and cannot prove cause and effect.

However, men should still be cautious about drinking coffee when considering fertility plans. According to the World Health Organization (WHO), consuming 200-300 mg (about 2-3 cups) of caffeine per day is considered a relatively safe range. Exceeding this dose may increase potential risks.

In addition, when pursuing healthy fertility, men should also pay attention to a balanced diet, moderate exercise, and avoid bad habits such as smoking and alcohol abuse. These measures are essential to maintaining male reproductive health.

in conclusion

Although the current research results are inconsistent, the possibility that long-term coffee drinking in men may have a negative impact on fertility still exists. Therefore, men should drink coffee with caution when considering fertility plans and follow the principle of moderate intake. In addition, a balanced diet and a healthy lifestyle are also important factors in maintaining male reproductive health.