I did the first 2 days of the 7-day cleanse which is 1 capsule a day. For me, on an empty stomach, the product made me feel extremely nauseous within 10-15 min both days so I personally would recommend eating a little something with them, and then it’s fine. I think just the 1 capsule made me have to go a little more than usual but not much, I think mostly I was just more gassy. Even so, it did help with feeling a little less bloated. I think going up to the 2 capsules would definitely produce more of a “having to go” situation. Just doing the first couple days of he process was helping a little bit, so I do believe they are effective at what they are designed to do if you follow the directions.