Wasabi, known for its fiery heat, is even a luxury in its native country of Japan due to the costly process behind its creation, and even when wasabi is expensive, it doesn't mean it is authentic.
It's a popular sushi condiment loved by many across the globe, but most wasabi is fake (stock image of fake wasabi).
However, according to food bible Taste Atlas, most wasabi served globally is not authentic - it's a blend of horseradish, mustard, and green food colouring.
Due to the costly process, it is estimated that only five per cent of wasabi served worldwide is genuine, with most establishments opting for a cheaper alternative of horseradish and green food colouring.
Associate professor Rui Nouchi of Tohoku University's Institute of Development, Aging, and Cancer led a team of researchers in a study published by Nutrient that found wasabi leads to a 'substantial' increase in episodic memory.
