Hi Paula,
I take twice daily now prior to every meal when doing well. If in a flare I will step back at times to sort things out.
Read a book, "Probiotics Nature's Internal Healers" by Natasha Trenev that really turned me on to probiotics and ensure that I buy a decent product.
The book is very good overall... but even has a small blurb how to handle different diseases through probiotic supplementation... even AS.
Her recommendations...
Eliminate/reduce bread, pasta, cereals, rice, potatoes and sugary foods (sound familiar)
Probiotic regimen:
Probiotic with L. Acidoplilus, B. bifidum and L. blugaricus 3 times daily prior to meals (10-30 minutes prior). If capsule ensure in oil-matrix
Hope that helps,
Tim