Talk:Lactose intolerance

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This article was the subject of a Wiki Education Foundation-supported course assignment, between 11 January 2022 and 13 April 2022. Further details are available on the course page. Student editor(s): Riltho45 (article contribs).

Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 27 August 2018 and 7 December 2018. Further details are available on the course page. Peer reviewers: Rachelv37, Jamieeliseodom.

Above undated message substituted from Template:Dashboard.wikiedu.org assignment by PrimeBOT (talk) 02:06, 17 January 2022 (UTC)[reply]

Lactose malabsorption/maldigestion

In the terminology section: “ "Lactose malabsorption" refers to the physiological concomitant of lactase deficiency (i.e., the body does not have sufficient lactase capacity to digest the amount of lactose ingested).”, shouldn’t “maldigestion” be added; i.e. : “ "Lactose malabsorption" or “lactose maldigestion” refer to the physiological concomitant of lactase deficiency…”. Lactose is not directly absorbed; it is first digested into glucose and galactose, that are then absorbed. Lactose intolerance is due to lactose “maldigestion” into glucose and galactose, not to lactose “malabsorption”. For example, it is correct to say “fructose malabsorption”, or “glucose-galactose malabsorption”, but somehow incorrect to say “lactose malabsorption”. Lactose "maldigestion" and "malabsorption" are both used in literature ("malabsorption" being more common…)Gregopim (talk) 16:30, 23 June 2021 (UTC)[reply]

Bad map

Im suspicious of the map showing the distribution of lactose intolerance. https://commons.wikimedia.org/wiki/File:Worldwide_prevalence_of_lactose_intolerance_in_recent_populations.jpg

Why would populations in Iceland and Greenland have 80-100% lactose intolerant, while the rest of Scandanavia is 0-15%?

The areas don't follow political boundaries. — Preceding unsigned comment added by Aero13792468 (talk • contribs) 07:27, 16 April 2022 (UTC)[reply]

Yes it's pretty bad. According to the original source the percentage was calculated per country, so it's strange that it doesn't align with political boundaries, but they don't cite the sources for their data so it's impossible to investigate why. We talked about replacing it a few years ago, which led to the second, more accurate, map being added, but it didn't have the western hemisphere so we kept both. Maybe now there's enough data available to produce a good map of the whole world?
Greenland does make sense though. Its population is 90% ethnically Inuit and has very high rates of lactose intolerance. – Joe (talk) 07:14, 19 April 2022 (UTC)[reply]
The current map is very inaccurate. Another obvious error is that it seemingly implies that lactose intolerance in Italy is lower than in Spain, when the opposite is true (72% of the population might be lactose intolerant in Italy, compared to 29% in Spain. I've seen many sources supporting this. https://milk.procon.org/lactose-intolerance-by-country/). I've seen I remember seeing another map in this article some time ago that was much better -- it only showed Europe, though. I don't know what happened to this other map. Schweinchen (talk) 22:39, 12 August 2022 (UTC)[reply]
Yes, map is terrible. I think it's more likely to be made on stereotypes and prejudices than on real estimations. As an example, Uruguay and Argentina are 28th and 33rd in milk consumption per capita rankings. While there isn't official data, academic researchers estimate Uruguay's lactose intolerance to be at 40%. I haven't found a similar estimate for Argentina. In this map, they both appear on the range of 80-100%. Halvenvideo (talk) 19:28, 18 October 2022 (UTC)[reply]

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