I'll let you know how it goes. I'm on day 8 so far, started with 1/4 bottle for the first 4 days, now I'm doing 1/2 bottle. It says to go up to 1 bottle for days 9-20 but I think I'll continue on 1/2 bottle for another week or so, and then try 1 bottle/day for 11 days.
After that I plan on taking 1/2 bottle daily, if I find it is helping. I'll continue it forever if it works. They say to take 1/2 to 1 bottle daily as a regular dose. It is expensive, 43$ CAN for a 15-pack (30 days supply), but if it helps me be able to eat more fat and IF I'll be happy.
As for the one you take, I didn't have success with capsules before so I didn't want to try another. If you can't tolerate soy, you might still be ok with this Bio-K soy stuff, the 1/4 bottle is hardly a large serving of soy and you can take it after a very safe meal. Also, if you start eating soy products the key is to start small and build your way up so your system has the chance to keep up.
The only digestive enzyme I take is Beano, which I take with most IF to prevent gas. When I started eating more IF after becoming stable, I kept getting weird D attacks. It turns out it was from gas from these foods, and taking Beano has fixed that. I take Beano with soy products which helps a lot, but I don't take it with the BIO-K, someone said that would destroy the bacteria. I do fine taking the BIO-K without Beano, it is a pretty small serving of soy. I don't know much else about digestive enzymes.