Are there any foods Japanese people don't eat?

Question:

I have to do a project in food tech about Japanese food: so are there any foods they don't eat?

Answer:

Many Japanese are not fond of the spices and chilies used in Mexican cooking. It's not the spiciness (heat) they dislike, as they'll eat spicy hot Szechuan or Thai food. It's the actual flavor of the chiles or spices.

Also, Japanese don't like very sweet items. Even their local chocolate and versions of American candies like KitKat are no where as sweet as their American or European counterparts.

Of course, most Japanese I know claim the Japanese people love to eat everything but that's obviously not true...