Based on the averages and statistics based on per country figures, the Dutch are the tallest people in the world. In the Netherlands, the average height for all adults is 6 feet 1 inch or 1.85 meters. This is actually an astounding development in terms of the national heigh average because 100 years ago, nearly a quarter of all men who tried to join the national army were rejected because they are too short for the cut-off height of 62 inches or 1.57 meters.
There actually taller people who belong to particular populations within a country. A great example of this is the Maasai people who inhabit certain areas in Tanzania and Kenya. But taken as a whole, it is the people who are from the Netherlands who are considered the tallest people. Interestingly, even the people who have migrated to the Netherlands from different parts of the world are still considered taller than average when compared to their own ethnic or racial groups in their original countries.
The Danes are almost as tall as the Dutch in terms of national height averages. The average Dane is about 6 feet or 1.83 meters tall. The Americans were once considered the tallest people in the world but now only has an average height of 5' 10".
Researchers have attempted to explain this phenomenon and have so far pointed at genetics and nutrition as the primary reasons for the Dutch becoming the tallest people in the world. The researchers said that the Dutch have been the tallest people in the world hundreds of years ago, but because of poor nutrition had become shorter. But because of the reemphasis on good nutrition have started to become taller once again.