Ive personally tried Lighter Life and lost over 3 stone to be taken ill with a stomach ulcer due to my body not getting food to process so stomach was being affected by unused stomach acid. I stopped the diet immediately but tried just healthy eating and piled on 2 of the 3 stone I lost... I have now found the best way to do it... smaller portions and excercise, I know it doesnt sound fun but it works :-D I would say do a food based diet instead of shakes and soups, which tasted disgusting anyway! Dont know how I coped with it for 5months! YUK!