bluebicycle, sorry you are having this problem. I also have problems with constipation. What helps me to stay regular is to drink a small cup of kefir everyday. I get the plain kind and add a bit of chocolate protein powder to it as I find the flavoured ones are too sweet. Kefir has a much higher concentration of probiotics than yoghurt. You can also buy the organisms in pill form but I find I tolerate the kefir the best because I can change how much I am drinking depending on how things are going...