My wife has eaten The Impossible Burger on two different occasions and has had severe stomach cramps for two days both times. , Nothing else happened. She has eaten the Impossible Burger from the same place three times and each time she has had severe stomach cramps. The pain starts the next morning. I ate the Impossible Burgers on the first two occasions without repercussions. We also ate the Impossible Burger at other restaurant about two months ago without any problems.