On average, a man in the nation of Japan has a testosterone level of 435 ng/dl, after 2000.
Is Japan having a decrease of testosterone like the rest of the world?
There’s a weird testosterone decrease in many of the world’s countries, since about 1970. Japan is going through this fall in testosterone, unfortunately. However, the testosterone decline is much like the rest of the world’s drop.
More detailed testosterone info
Have a look at our data on testosterone levels in other places around the globe. We also have information to raise your testosterone, if that’s something you need.
How we got this data
You can see our methods and the data we are using here.