What makes us crave meat?

One of the big boy plant-based food companies changing the game "Impossible Foods" explains what is in their faux meats that make it so realistic, and why we as humans crave meat. Turns out it's an iron molecule in blood called heme. And that's their secret ingredient.

I know not all vegans enjoy faux meat, especially when they're a bit "bloody", but for everyone else, these products look incredible!