Have you try digestive enzyme? What it basically does is helping your stomach and intestines to digest those food you ate. I tried myself and some of my friend also had tried it and it works like a charm. This method is easier for our body as it does not force the waste out from our body, instead, it sorta breaking down the toxin in our body and flush it out naturally without suffering.
Now I have bowel movement at least twice a day without have to sacrifice my diet. I am more than happy to share the information with you if you interested in it.