I reintroduced alcohol first with terrible results. My bad, maybe. I had just straight vodka with a twist. Next day stomach cramps, day after explosive diarrhea for almost a week until I got a probiotic. Was fine for another week and had a glass of red wine with dinner. Same results as before. I was never alcohol intolerant and never had IBS. This is the only thing I have reintroduced in 2 weeks. My system was so regulated before Whole30, now I'm not sure what to do. Apparently, my system will no longer accept alcohol. Sad, as my husband is a wine maker.