Height isn't a good example, because improved nutrition does lead to increased height in populations: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5811819/ htt

Height isn't a good example, because improved nutrition does lead to increased height in populations: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5811819/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5811819/ It can even be compared across rapidly developing nations with different rates of food consumption: https://www.scirp.org/journal/paperinformation.aspx?paperid=89648 https://www.scirp.org/journal/paperinformation.aspx?paperid=...