Mongolia... not willing to try horse meat.
Uzbekistan (See Mongolia)
Kazakhstan (See Mongolia and Uzbekistan)
Somalia... not a fan of animal organ street sausage.

England, I'll give them the fish and chips, but the rest is pretty bland.
Any country that's main dish is Hummus, That is some nasty

All of the Norse countries... Iceland, Sweden, Norway, Denmark... all of the countries that allow their fish to ferment (rot).