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Thread: Tallest populations : the real story

  1. #111
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    Quote Originally Posted by matty74 View Post
    What diminishing returns? Chicks here in America love themselves tall guys 6-3 and over. Look no further than professional athletes who are often at that height or taller.
    I think those girls who like professional athletes are attracted to fat, as in a fat wallet, rather than to height.

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  3. #112
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    Major correlates of male height: A study of 105 countries
    https://www.sciencedirect.com/scienc...70677X16300065

    Highlights
    •This study shows that nutrition in the examined regions consists of three fundamental types of diet based on rice, wheat and milk, respectively.

    •Male height in developing countries correlates with protein quantity.
    •Male height in developed countries correlates with protein quality.
    •Low protein quality can explain the unexpectedly short height means in the highly developed countries of East Asia and wealthy Asian oil superpowers.
    •Children's mortality and total fertility are the most important socioeconomic factors correlating with stature.

    ...
    Fig. 8.Correlation between male height in 93 countries and the average daily consumption of ‘highly correlated proteins’ from milk products (dairy), potatoes, eggs, pork and beef (FAOSTAT, 1993–2009).


    _
    Fig. 10. (a) Correlation between the frequency of the ‘pastoral’ Y haplogroup J1-M267 and male height in 21 countries. (b) Correlation between the combined frequencies of the ‘agricultural’ Y haplogroups E-M78, G-M201 & J2-M172 and G-M201 alone, and male height in 21 countries. (c) Correlation between the combined frequencies of Y haplogroups G-M201, E1b-M78, E-M81, J2-M172 & R1a-M420 and male height in 21 countries. (d) Correlation between the phenotype frequency of lactose tolerance (%) and male height in 47 countries. Sources: See Appendix Table 3 and Grasgruber et al. (2014).


    _
    Fig. 12. (a) Correlation between the observed and predicted values of male height–model (4) (see Table 4). (b) Correlation between the observed and predicted values of male height–model (10) (see Table 4).



    4. Conclusion

    The current study extends our previous data from Europe and enables a better understanding of the enviromental determinants of physical growth in the developing world. The most fundamental finding is that the nutritional correlates of male height in North Africa, Asia and Oceania are very different and primarily depend on protein quantity, not protein quality. Furthermore, three basic nutritional styles can be distinguished, depending on the major source of protein:

    •The first nutritional style (in tropical Asia) is based on rice and is also characterized by a very low consumption of protein and energy. It is accompanied by very small statures between 162 and 168 cm.

    •The second one (in the Muslim countries of North Africa and the Near East) is based on wheat and the consumption of plant protein reaches the highest values in the world. The intake of total protein and total energy is relatively high as well and comparable with Europe, but the average height of young males is still rather short and does not exceed 174 cm.

    •The third one is based on animal proteins (particularly those from dairy) and is typical of Northern/Central Europe. This region is characterized by the tallest statures in the world (>180 cm), being matched only by the inhabitants of the Western Balkans, in which we can presume extraordinary genetic predispositions.

    ....

    Of all other variables examined in this study, the human development index (HDI) is the only factor that shows a comparably strong relationship with male height like to nutrition. This indicates that the factors leading to the increase in the average height intertwine with public policies that improve the overall quality of life. As in our previous study, children's mortality (i.e. a disease free environment) is the strongest correlate of stature among all the remaining socioeconomic indicators, but the forward stepwise regression also highlights the role of a lower total fertility rate (i.e. the amount of resources that can be expended per child) and partly urbanization as additional factors that can be targeted, when trying to speed up the pace of the positive height trend.

    Besides that, our study shows that, similar to the situation in Europe, the final height in non-European regions may be influenced by genetic factors. Their role in North Africa and the Near East appears to be similarly strong like in Europe, and the inverse relationship between height/lactose tolerance in this region is intriguing. The results are less persuasive concerning the southeastern part of Asia and Oceania, but genetic, socioeconomic and nutritional data from many local countries are still lacking. In any case, the verification of these findings is possible only via studies of autosomal DNA.
    Last edited by Drewcastle; 12-04-2019 at 02:12 AM.

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