A great summary of the work that Weizmann scientists have been conducting on the microbiome (bacteria in the gut) that led to the founding of startup DayTwo. Diabetics can now have their gut microbiome analyzed and receive a personalized nutrition plan. (2016 video still relevant – 3 million views)
https://nocamels.com/2021/06/gut-israeli-research-microbiome-personalized-diets/