Americans not the tallest anymore

It seems that many European nations can now claim the title of having the tallest people in the world. At one time the US held the title of tallest people in the world by a big lead. Look at the chart above. In recent times, that lead has decreased and at this point the US has fallen behind.
Scientists claim that a persons height is a complex combination of both nutrition and genetics. one of the reasons often cited for the lead that US citizens had in the height is good nutrition. As nutrition standards have decreased in the US, it isn't all that surprising that it would fall behind.

Americans once tallest — but not anymore