This is a strange comment, inulin is not a probiotic, it's a soluble dietary fiber. It's at best considered a prebiotic. Probiotics are microorganisms.
Culturelle contains inulin. That's the brand that takes up most of the space at my local CVS and Walgreens. Also the CVS-brand knockoff contains inulin.
...in miniscule amounts. Culturelle has 200mg inulin.
From the case study in the GP
>The only noted lifestyle change between colonoscopies was the initiation of 4 grams of agave inulin powder daily in his morning beverage for the last 2 years of that seven-year period.