Worldwide prevalence of lactose intolerance in recent populations. An average of all ethnic groups of the total population of a country is represented. Because of sometimes poor data situation partly extrapolated. Data were collected over the years in countless publications, and then evaluated and displayed graphically.
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. http://creativecommons.org/licenses/by-sa/3.0/deed.en