Having bacteria in your food doesn't really sound great, but you couldn't have yogurt without it! Learn why in this week's QQ! Hosted by: Hank Green ---------- Support SciShow by becoming...
========== Sat you’re absent-mindedly spooning yogurt
into your mouth, when you happen to glance at the container and notice that it says something
a little weird: “Contains live and active cultures.” There are bacteria! Inside your yogurt! And
for some reason the company is advertising this! The fact that your yogurt has live bacteria
inside of it might sound kinda gross. But even though some species can be dangerous,
lots of bacteria -- including the ones in yogurt -- are not bad for you. In fact, they’re responsible for turning
milk into that yogurt that you’re eating. To make a thick, creamy yogurt, you need to
start with some milk. Milk is just a mixture of different fats,
proteins, and this sugar called lactose all suspended in water. If you want yogur...