What the animal trials say.
Each guide ranks the options for one problem by the trials run in dogs or cats, with the animals, the dose, the duration and the result for each, and names the products that have none.
- What is the best probiotic for a dog with diarrhea? — The dog trials, ranked: which probiotics shortened diarrhea against placebo, which did no better than placebo, and why the best-evidenced strain is not sold in the US.
- What is the best probiotic for a cat with diarrhea? — Cats have better probiotic evidence than dogs: a 217-cat placebo trial of SF68, two antibiotic trials, an open-label Proviable-DC study, and a S. boulardii result. What each showed.
- Do probiotics help a dog on antibiotics? — Antibiotics upset most dogs’ guts. The trials of probiotics given alongside them: what a synbiotic did for appetite and diarrhea, what a live yeast did, and what did not work.
- Pumpkin or psyllium for a dog’s loose stools? — Pumpkin is the fiber everyone recommends; psyllium is the one with the trials, in dogs and in cats. What the studies found, and what pumpkin has behind it.
- FortiFlora vs Proviable-DC: which has the better evidence? — The two veterinary probiotics most often recommended, side by side: one strain against seven, sachet against capsule, and the trials each can actually point to.
Rather be told than read?
The pet quiz picks one product for your dog or cat, with the reason it won.
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