Now that's been around a long, long time. I took it in the 80's. I was up all night doing housework-BLAH...could'nt sleep, dry mouth, talking a mile a minute and driving everyone nuts with my cleaning. I did lose 70 lbs. on it, but as always with any diet I gained it back. It was mostly the sleeplessness that bothered me. Now, I could use it occasionally to clean this place, but can't take it because of my heart....wow that would cause major arrhythmias.