The only time I have not been able to hold the drink down was when I had the lemon and olive oil. I tried it several times just to ascertain whether it was my physical state or other circumstances causing that to happen because I don't usually heave up stuff. The Epsom Salt drink doesn't taste good, but I don't have trouble drinking it or keeping it down. I just get a little bit of lemon juice and swish around my mouth after drinking it. I actually enjoy the olive oil with grapefruit. That is soooo much better than the lemon juice.