Crazy fruit from Africa. Eating it blocks your sour taste, so that foods you eat for the next 30 minutes or so taste sweet. Lemons, limes, and other generally intolerable things taste like candy.
http://en.wikipedia.org/wiki/Miracle_fruit
Apparently they have miracle fruit tablets for sale in Japan. But you have to read Japanese to get the lowdown at this site.
Apparently they have miracle fruit tablets for sale in Japan. But you have to read Japanese to get the lowdown at this site.