Some people, this is believed to be genetic , have a very poor tolerance for chocolate and they may have difficulty in digesting it properly. There is no point in going on daredevil eating contests, one wishes that this sort of thing(Nathan"s did this with Frankfurters) should be abolished. It makes (Speed-eating) into some sort of sport and even practice sessions could be hazardous. People have succumbed in speed-drinking contests involving stuff as harmless as water. seek your own pace- everything in moderation! there is no point in food-speed eating contests and the Guiness book of world records no longer records them.