1. Hakarl
Arguably the worst tasting and foul smelling food, Hakarl is a shark that most people in Iceland consume. It is a traditional food that you can get if you visit Iceland. The Hakarl does not have a kidney or a urinary tract and that is what makes it so deadly. The absence of those organs means that all the waste and toxic substance from the shark’s body has no outlet and thereby they all get absorbed in the skin. So if you are consuming it, you are having all the toxic products too. You need at least 6 months of preparation time to eat a Hakarl that is safe and clean.