I just recently started RT4, and have problems after breakfast. Usually I have 1liter of green smoothie, with 5-6 bananas,dates,some green and some other fruit(depends what I have mature at home). This smoothie is usually about 7-800kcl.I drink it slowly in an hour.Not forcing it at all. But after I had the half of it, my stomach starts to hurt. Is not like a "oh I'm full" feeling, but a very uncomfortable ,sickening one.Then I have to take some break .Sometimes I even feel dizzy.