I want to quit smoking and two of the ingredients found in the product that I want to use are buckthorn bark and cascara sagrada. It stated on the label that if you have loose stools that these roots might enhance that and cause more problems. I need to know if it would do the same to someone with IBS? I know that caffeine is the main cause of my IBS, so if I cut caffeine out while taking this product, would that make a difference? Please get back to me as soon as you can. I can't quit smoking on my own. Thanks, Stacie