After Cuba lost USSR financial support in the n90’s,, calories intake fell, they lost weight and became helathier, mortality fell https://academic.oup.com/aje/article/166/12/1374/82812 “Impact of Energy Intake, Physical Activity, and Population-wide Weight Loss on Cardiovascular Disease and Diabetes Mortality in Cuba, 1980–2005”

Conversely, when North Korea lost that support, infant mortality and mortality over 65 started diverging markedly versus South Korea https://academic.oup.com/eurpub/article/28/5/830/4930643 “The life expectancy gap between North and South Korea from 1993 to 2008 “

I found it in this 3d of the Pseudoerasmus which start off mortality comparison between China and India last century betweehttps://twitter.com/pseudoerasmus/status/1404403291837112324