Interesting stuff.
Marci, Ellie gets her supplement with calcium that her nutritionist told us to use but I was a bit hesitant to give her any extra. I'm thinking yogurt shouldn't be too bad though and I think we might try it.
Yorkieluv, I don't know how much Ellie's vet knows about probiotics. So I don't even know how many clients she has told to try them. What she said was based on an article that she had read that day and some kind of research coming out. I should bug her for a copy of it.

I'm confused though because the strains are the same. Maybe it had something to do with the coating...