Let me know. My son's friend runs WithinSciences and they make Gluco Z. I used it for a month and my doctor told me I had stablized my blood sugar and lost 15 pounds. When I ran out it was a while till I got more. I gained back the weight. Once I started taking it, I went from 173 to 137 in 5 days and I had eaten sweet n sour. It seems to work like a miracle but things that seem too good to be true usually are. Does anyone know if the effects of Gluco Z wear off?? Will I have to use something else? Are there any side effects long term? I feel normal again right now and have a fear of losing this.