I've had digestive problems for at least a couple of years now, abdominal bloating and gas with diarrhea and constipation. I've been taking a popular on-line fiber supplement for almost a year and that has helped the constipation problem tremendously, but my system was still having difficulty with rumbling/gas/pain with diarrhea at least every other day if not daily. About three weeks ago I began taking a milk thistle supplement simply because I suspected my liver could use the support (no liver specific ailments going on, but family history and age, etc.). Lo and behold, within two days of beginning it, my entire GI tract calmed down beautifully - I am truly amazed. I would say it's 95% or more back to normal, with one or two well-formed bowel movements daily with no straining (that's incredible in itself) *without* taking the fiber supplement, and no gas/pain/diarrhea. The milk thistle supplement contains dandelion root, milk thistle seed, burdock, artichoke, kelp, and peppermint, with a "homeopathically prepared mineral formula designed to work with the herbs" made of potassium chloride 3x and sodium sulphate 3x (I'm including everything because I'm not sure if it's the milk thistle alone that's helping, another ingredient in the mix, or the entire mix combined). This has been a wonderful surprise for me - how great to have a GI tract functioning like it's supposed to! I really hope this helps someone else out there!!