A new study published in the journal JAMA Network Open
in February 2020 reports that Danish men who followed a healthy diet
had the highest total sperm counts, and a better hormonal profile
concerning hormonal regulators of fertility, compared to those on a
Western or other less healthy types of diet.
Male fertility trends and contributing factors
Over the last few decades, fertility in men has gone down
significantly. Recent studies show a 50% to 60% reduction in total sperm
count over the years 1973 to 2011 in the developed nations of the
world. This is merely the continuation of a trend that began to be seen
in the 1940s.
Other studies suggest that testosterone levels are also falling over
time. The reasons for these changes are not clear but may have to do