The BIO-K+ I get is soy yogurt, well kinda liquidy soy yogurt. Is that the one you tried?
So far I have noticed a few things: 1. I started at way too high a dose. The guidelines on their website are for normal people. I searched for "BIO-K+ IBS" on the Internet and found a different set of guidelines saying to start with 1 tsp, then 2tsp, then 3tsp, then 1/4 bottle, then 1/2 bottle. I started at 1/4 bottle and after only 4 days went to 1/2 bottle. So, I had some difficulties with it, just general stomach feeling 'iffy' and different. Finally around day 8 it started getting better.
2. I used to take 1-2 Imodiums if I had an attack. Because of a ton of stress this past week with school, I've had 2 attacks. The first one I took 1 Imodium and it made me C. So the second one I took 1/2 Imodium and this was enough. So it seems I need less Imodium to have the same effect.
3. I had dinner of mostly fish and veggies without my usual SF buffer (did fondue). I followed it up with a piece of birthday cake with icing. This would normally cause problems immediately, and I had no symptoms at all. Can't quite say this was due to the BIO-K but honestly, I think it's helping.
I bought a pack of 15, so I'll be using it for at least another month. I'll give another update in a couple of weeks. Hopefully it'll be a good one!