Tell me, did the weight you lost on your 43 day cleanse stay off?
I did 60 days with the supervision of my naturopath with the goal of colon cleansing -- very successful! You can read about that journey on this forum if you like.
In the 40s the lemonade finally let me down and I switched to fresh fruit and vegetable juices which carried me through beautifully to day 60. If you find the lemonade doesn't work at any point, don't hesitate to switch over.
I don't need to tell you that all this effort will be for naught if you don't work out a diet and exercise program post-fast. That said, best of luck!