From my own experience a few weeks back i was so backed up and not able to poop and my stomach was killing me and i wound up in hospital (twice) they did an ultra sound to see that i was clogged up. Anyhow, i ended up losing 10 lbs from the diet they put me on. No proteins were allowed at all. They informed me that proteins were actually the hardest thing for the body to digest. But, there i was stuck eating toast, greens, salads, jam, tea, water, not even cheese was allowed. But i will tell you as the lbs started coming off i was considering to keep it a regular diet, accept one problem. I do not make for a very good vegetarian and it drove me nuts not being able to have so many things. But, maybe something half way in between is good. i.e. more salads, more water, tea etc... but dang gotta have bacon. lol