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The 3 changes guide

3 things I changed for my dog's sensitive stomach — and the last one actually worked.

I tried the sensitive-stomach kibbles, the slow feeder, the no-table-scraps rule. Here are the three that actually changed something — in order.

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A medium brown dog eating a patch of grass in a backyard

If your dog eats grass like a goat, walks away from his bowl, or hands you a cleanup you didn't want this week — you're in the right place. First, the ones you can start today. Then the one that finally moved the needle.

A stainless-steel slow-feeder bowl with maze ridges, dog eating from it

Switched to a slow-feeder bowl.

If your dog inhales his food in 30 seconds, you're not alone. Fast eating means swallowed air, poor chewing, and a stomach that has to work harder on food it barely saw. A stainless-steel slow-feeder — the ones with maze ridges — forces him to eat around the obstacles. His pace drops. His stomach gets more time to actually process what's going in. Simple fix, zero cost after the bowl.

A hand lowering a food bowl to a calm, waiting dog in a kitchen

Same meal times. No table scraps.

The gut runs on rhythm. Fed at 7am and 7pm, same bowl, same food — the digestive system knows what's coming and when. Table scraps break the rhythm: new ingredients, new fats, new amounts at random times. Every variable off-schedule is extra work. Lock the meal times, lock the food, and a lot of low-grade stomach noise drops out on its own.

A dog eating from a bowl with Ruff Greens VitaSmart on top

Added Ruff Greens VitaSmart to his food.

This is the one that actually worked. VitaSmart is a whole-food topper that goes on the kibble he's already eating — no new food, no switch. It carries 20+ digestive enzymes (the catalysts that break down fat, protein, and starch — most of which don't survive the 400°F extrusion kibble is made with) and 15+ live probiotic strains for the gut microbiome. The food goes in with the tools the body needs to use it. Most dogs show a calmer stomach within days.

All three helped. One did the heavy lifting.

The whole-food topper that changed the sound at mealtime.

Dr. Dennis Black spent decades working out which nutrients kibble leaves on the floor of the extruder. The live probiotics. The digestive enzymes. The whole-food antioxidants. VitaSmart is the one scoop that puts them back into the food he already eats.

What's in every scoop

The live nutrition kibble cooks out.

Real food. Human-grade. Made in an FDA-registered USA facility.

20+ Digestive Enzymes

They help him break down his food and actually use the nutrients — the live catalysts that high-heat processing strips out of kibble.

15+ Live Probiotic Strains

The good bacteria for his gut. They support healthy digestion from the microbiome up.

Whole-Food Antioxidants

Real food like spinach, sweet potato, and blackberries — not synthetic vitamins. Helps the body manage gut-wall inflammation.

Omega 3, 6 & 9

The healthy fats that support a healthy inflammatory response across the GI tract.

A dog resting calmly

When the right nutrition goes in, the stomach usually settles.

You're not going to flip a switch tomorrow — the gut takes time to re-balance. But because the probiotics and enzymes work on the food he's already eating, most owners see something shift in days, not weeks.

  • 20+ digestive enzymes help him break down his food
  • 15+ live probiotic strains support gut health
  • Whole-food antioxidants help the body manage gut inflammation
  • Real-food vitamins from spinach, sweet potato, and blackberries — not synthetic isolates

What to expect

Most owners notice a calmer stomach within 5–14 days of daily use. The deeper gut-microbiome rebuild takes 90 days.

Try VitaSmart for $14

200,000+ dogs. Fewer upset-stomach days.

I heard about Ruff Greens by listening to Glenn Beck. I was hopeful it would help my little Gilbert with allergies. He's still a little itchy, but not as much. He used to eat grass a lot and that concerned me about how his tummy felt...

Vanessa
Verified Buyer • 20 weeks in

Odin is a 1 yr old black lab. He has a sensitive stomach. Ruff Greens has tremendously helped

Karen Bass
Verified Buyer • 20 weeks in

Before Ruff Greens Tana's Poop was highly variable, sometimes hard, sometimes very wet and runny. We tried various supplements which were less expensive. We finally decided to go the extra mile and buy a sample pack of Ruff Greens and...

Dave
Verified Buyer • 20 weeks in
Dr. Dennis Black, founder and formulator of VitaSmart

Meet the formulator

Dr. Dennis Black, ND

Dr. Black is a Naturopathic Doctor who spent decades studying how processed pet food fails the dogs it feeds. VitaSmart is the formula he built to fix it — whole-food nutrition designed to ride alongside whatever's already in your dog's bowl.

"A bag of kibble can hit every number on the chart and still be missing what a body actually lives on. The live cultures, the omega oils, the antioxidants — none of it survives the extruder. VitaSmart is what live nutrition looks like, added right back on top."

Dr. Dennis Black is a Naturopathic Doctor and not licensed to practice human or veterinary medicine in any state.

Give him 14 days of live nutrition.

Try the one that moved the needle. If his stomach doesn't settle, cancel the subscription in the 14-day window and you're done.

  • $14 for 14 days of VitaSmart
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  • 90-day money-back guarantee
  • Free $9.95-value treat with every monthly subscription order
  • Cancel anytime in your account or by phone
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$14 at signup covers the 14-day trial bag with free shipping. After 14 days, your Loyalty Club subscription begins at $59.95 + $8.95 shipping every 4 weeks unless cancelled. Cancel anytime in your account or by phone at 214.783.3364.

Common questions.

How much does the Jumpstart Trial cost?

$14 flat at signup, with free shipping, backed by a 90-day money-back guarantee. That's it at signup. You get a 14-day supply of VitaSmart to try on your dog's food. Then 14 days after you receive the trial bag, your Loyalty Club subscription begins and your card is charged $59.95 + $8.95 shipping for a full 28-day supply. You can cancel anytime in those 14 days, no questions asked.

Will my dog actually eat it?

Most dogs do — VitaSmart is a whole-food topper, not a pill, and it goes right on the food they already eat. Some dogs with sensitive stomachs do best when we introduce it gradually: start with half a scoop for the first few days, then full scoop by day four or five. That gives the gut time to welcome the new probiotics and enzymes without a change-of-food reaction.

Is it normal for my dog to eat grass?

Occasional grass-eating is normal — most dogs do it at some point. But if your dog is grazing like a goat, walking away from his bowl, or hitting the lawn every time he's out, it often means his body is asking for something his food isn't giving him. Live probiotics and digestive enzymes get cooked out of kibble at the heat kibble needs to be processed at. VitaSmart puts them back. Most owners see the grass-eating taper in the first couple of weeks. If it continues or comes with other symptoms, talk to your vet.

What if it doesn't help?

Cancel within the 14-day window and no subscription charge ever hits your card. Everything you buy from us — the $14 trial and every subsequent subscription order — is also backed by our 90-day money-back guarantee.

If your pet has a medical condition, consult your Veterinarian before use. Use only as directed. Dr. Dennis Black is a Naturopathic Doctor and not licensed to practice human or veterinary medicine in any state. *28-Day Supply for a dog up to 40 pounds. Above or below these weights, you may have to modify the amount you feed your dog.