I had about three months where I could barely eat or drink anything. Only water and boost, both drunk slowly. If I drank them fast or ate or drank anything else I would puke it up in less than two minutes. I had been overweight my entire life, tried constantly to lose weight. Not a diet I would recommend but I went from 250 lbs to 99 lbs in 3 months. When I finally stopped puking everything I had to eat simple, bland foods for a bit. I had to see a nutrionist to gain weight. I'm now at an ideal weight. My stomach is smaller, so small meals these days, 4 to 5. I can also eat "unhealthy" food more frequently, because my stomach is smaller and I can't gorg anymore.