Malnutrition and microbiome expert Bill Gates

"Take malnutrition, almost half the kids in Africa, their brain and bodies don't develop. And we haven't understood chemically, they're getting enough calories. What are the micronutrients or the mix in their diet that causes them to be on average five inches shorter than they would be and 20 IQ points less capable than they should be, which for them and their countries is pretty profound."

"And now with the latest tools of science, looking at these bacteria in the gut, the microbiome, and OK, how do we influence that? We clearly have a path to solve malnutrition. And people should go, wow, that is a very, very big deal in terms of the uplift that comes out of that."