Walk the supplement aisle and you’ll see both words — probiotic and postbiotic — often on products that look nearly identical. They’re not the same thing, and the difference isn’t marketing trivia; it changes how the product behaves on the shelf, in the gut, and alongside other medications. We built this head-to-head to make the…
“Sensitive stomach” is one of the most common reasons owners reach for a supplement, and one of the most poorly defined. It can describe a dog that vomits after eating too fast, one with a genuine food intolerance, one with chronic inflammatory bowel disease, or one whose symptoms signal something far more serious. Before we…
Every supplement brand will tell you their product is pure, potent, and exactly what the label says. Almost none of them will show you evidence. That asymmetry — confident claims, absent verification — is the central problem of the supplement market, and it’s the problem our verification process exists to address. Here’s exactly how we…
The price of a dog probiotic tells you almost nothing on its own. A $15 bottle and a $60 bottle can sit side by side, and the cheaper one can be the better buy — or the more expensive one can be worth every penny. The difference is not the number on the shelf; it…
Of all the claims on a dog probiotic label, the one you most need to be skeptical of is the one that looks most scientific: the CFU count. That number — say, “10 billion CFU per serving” — reads like a hard, measurable fact. In reality it’s a prediction, and usually an optimistic one. Colony-forming…
Every score on this site rests on a method, and a method you can’t see is just an opinion with a number attached. We publish ours in full for a simple reason: we want you to be able to check our work, disagree with our weightings, apply the same framework to products we haven’t reviewed,…
Buying a dog probiotic is an act of faith. The shelf is crowded, the claims are confident, and the prices range from pocket change to genuinely painful. We wanted to replace some of that faith with method. So we assembled twelve of the best-selling dog probiotics on the market and ran them through a structured…