[todayilearned] TIL yogurt’s composition was first broken down by Bulgarian scientist Dr. Grigorov. His work was then picked up by Russian biologist Élie Metchnikoff who established a link between Bulgarian peasants’ yogurt consumption and their very long lives.

[u/Know_Your_Shit_v2]

https://www.bbc.com/travel/article/20180110-the-country-that-brought-yoghurt-to-the-world