The impossible burger is good for those who are vegetarian since the ingredient were all from plants. But when I read the "Secret Ingredient" which is "Heme" - I wonder what is this kind of thing? I do a few readings from the net..

Heme makes up part of the molecule hemoglobin, which turns blood red and carries oxygen around the body. It’s characterized by its ability to carry iron, so on its own, the molecule pretty much tastes like spare change.

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I still have no clue what really is heme? Is it a purie or just a powder or what, lol
But anyway, its burger is simply amazing and unique.