1.   Green horseradish.

2.   It turns out that wasabi, the pungent green horseradish served with sushi, stops tooth decay dead in its tracks.

3.   It turns out that wasabi, the pungent green horseradish that gives sushi a kick, also stops tooth decay dead in its tracks.

4.   Some Japanese serve whale raw, or pickled or fried in a light tempura batter with Wasabi sauce, made from green horseradishes.

5.   Spicy green horseradish paste used in most nigiri sushi and served as a condiment.