Free shipping on every subscription 90-day money-back guarantee NASC-certified & batch-tested Made in the USA Formulated for every size dogFree shipping on every subscription 90-day money-back guarantee NASC-certified & batch-tested Made in the USA Formulated for every size dog
ROMP
Shop all Find your match Help Cart
ROMP Gut & Digestion Probiotic for Big Dogs

Gut & Digestion Probiotic

12 strains, prebiotic fibre, nothing to argue with.

1 · Your dog's weight
2 · How often
  • Save 20% on every delivery
  • Free shipping, always
  • Free Dog Mobility Playbook ($19)
  • Pause, skip or cancel anytime
3 · Choose your supply
90-day money-back guarantee — even if the jar's empty
Why this matters

You've stopped being surprised by what's in the yard.

Loose stools that come and go. Gas that clears a room. The rumbling stomach at 2am that means someone's going out. Big dogs eat fast, eat a lot, and eat things they shouldn't — and their gut flora pays for it.

ROMP Gut & Digestion Probiotic
What's inside

Twelve strains. Plus the fibre that feeds them.

Most probiotics skip the prebiotic — which is what the bacteria actually eat once they arrive.

Dead simple

One scoop over dinner.

Scoop

One scoop a day at 65–100 lb — the buy box scales it for bigger breeds.

Stir it through

Unflavoured, so it works over kibble, wet food or a topper. No negotiation needed.

Watch the yard

Most owners see firmer, more consistent stools within 1–2 weeks.

From the pack

Boring poops. Finally.

Good questions

Before you order

Firmer stools usually show up within 1–2 weeks. Gas often improves first. Gut flora takes about a month to properly re-establish, which is why we suggest running it at least that long.

Yes. The powder goes over food and the chews are given by hand — no overlapping ingredients, and gut health tends to help the skin formula work better too.

No. The strains are shelf-stable — keep the tub sealed, somewhere cool and dry.

It's unflavoured and fine-milled, so it disappears into food. And if your dog still refuses it, the 90-day guarantee covers you.

Big dogs. Big years left.

Make the yard boring again.

12 strains, prebiotic fibre and pumpkin in one unflavoured scoop — backed by a 90-day promise.

Choose your supply