I found a supply of Saccharomyces boulardii which might be of help to UK'ers - this one only contains Sb plus magnesium stearate and the caps shell is hydroxypropylmethylcellulose [used for vegan caps].
This version seems to suit me better than the Jarrow one which contains maltodextrin [a big no-no for me] as its main filler.
It's called Candi-clear and I bought it from [
www.bodykind.com] 60caps for £14.20 including p&p a bit cheaper than the other one which seems to suit me by Optibac.
It might be available from its makers Natures Own, but I haven't checked that out yet.
Joyce