Giving a cat human probiotics

I've been giving my cat fortiflora as a probiotic for a few months, but have had suggestions to give her a human probiotic. Is it safe to give a human probiotic to a cat? Here is the one I purchased

I purchased the following one: Nexabiotic Probiotic 23-strain Multi-probiotic Supplement with Lactobacillus Acidophilus, Bifidobacterium Infantis, Saccharomyces Boulardii

Thanks

I know some members have been doing that and they seem to be happy with the results. Personally, unless it's prescribed by a vet for a very specific need, I stay away from probiotics and supplements but that's just me. Here's a link to an article with members recommendations for supplements which include human-grade probiotics - 

 [article="30716"]Nutritional Supplements For Cats Used By Our Members​[/article]