Sushi enthusiasts, we're sorry to inform you, but that spicy green paste that is served with your beloved rolls probably isn't actually wasabi. The wasabi most of us have eaten is a mix of European horse radish, hot mustard and green dye to give it the hue of the real deal wasabi.

Due to it being extremely difficult to cultivate, true wasabi is in turn only offered in a handful of restaurants, even in Japan. All in all, it is quite the finicky cop, but because of its scarcity, it is then worth a pretty penny.

For a breakdown of what you're actually eating with your sushi, why the replacement is used, and the details on real wasabi, press play above.

After, be sure to take a look at the Internet's latest food obsession, "Sushi Donuts."

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