Formulated with Dr. Ian Billinghurst, creator of the B.A.R.F. diet
Paws licked raw, a dog who grazes on every walk, stools that never settle? For a lot of dogs it starts in the gut, and fermented whole foods are what we feed it. Boost™ isn't another probiotic: 18 whole foods, fermented for two weeks so your dog can actually absorb them.
If nothing has worked
The wipes, the food switches, the probiotic that didn't stick. If nothing has worked, you're not doing it wrong. A lot of what shows on the outside starts in the gut.
A probiotic adds a few lab-grown strains, and many of them pass straight through. Boost™ works differently: whole foods, fermented, so it brings the fiber good bacteria feed on, plus the probiotics and postbiotics that fermentation creates.
Cell turnover takes time. So does a microbiome. Three things happen, in order, when you feed it every day.
Supports the body's natural detox pathways as the gut adjusts to fermented whole foods. Start low and go slow in week one, then feed the full dose every day.
Supports a healthy inflammatory response as the good microbes settle in. This is when many owners first noticing better poops, shinier coat or the energy.
Supports the integrity of the gut lining as its tight junctions tighten. Judge the results here, not before. If you're not willing to give it 90 days, this product may not be right for you.
How it's made
We take whole organic vegetables, roots, fruit, herbs, grasses and sprouts, grind them to a baby-food consistency, and ferment them together for two weeks. Fermentation does the work: it breaks down the plant cell walls so the nutrients are ready to absorb, and it creates probiotics and postbiotics along the way. Then we gently dry it, so one teaspoon carries all of it into the bowl.
Our proprietary wild fermentation process, developed over years by our three master fermenters, is one of our most closely guarded assets. It's slow, and it's why we make it the way we do.
What owners notice
A healthy gut shows up all over the dog. These are the changes owners tell us about most.
Every dog is different. Give it 90 days before you judge it; the timeline below says what to look for and when.
Pick one. We'll show you where dogs like yours started.
Owners who gave it 90 days
Every review comes from a verified buyer, in the owner's own words. Some reviewers received a reward for reviewing, and those reviews are marked. Boost used to be called Daily, so you'll see that name in older reviews.
Reviews for
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Coat
Lindsay "It's been life changing"
Itching
Diana "Healthy gut microbiome equals healthy skin microbiome"
Poop Eating
Veronica "Her poop eating has definitely decreased"
Energy Levels
Becky "Her energy levels are crazy!"
energy levels
Tracey "He was happier, his entire demenour changed"
Stool Quality
David "I immediately noticed stronger consistency with stool quality"
Stool Quality
Dana "His poop is consistently good"
Grass Eating
Emma "She hasn't eaten grass in months now"
Grass Eating
Lauren "I gave it a week and they stopped eating grass"
Itching
Theresa "She's not scratching anymore!"
Formulated with Dr. Ian Billinghurst, B.V.Sc.Veterinary surgeon · Creator of the B.A.R.F. diet · Author of four books on natural pet nutrition
Why 90 days? Guts change slowly. Stools often shift first, and skin and coat take longer, so we ask you to wait until day 90 to judge it.
Boost™ sized to your dog's weight, delivered every 90 days.
Cabbage*, Cauliflower*, Broccoli*, Cilantro*, Parsley*, Kale*, Collard Greens*, Dandelion Root*, Jerusalem Artichoke (Sunchoke) Inulin*, Turmeric*, Beet*, Ginger*, Papaya*, Alfalfa Grass*, Wild Blueberry*, Oregano*, Milk Thistle Seed*, Decaffeinated Green Tea Leaf Extract*
We ask for 90 consistent days before you judge it. If you're not willing to give it 90 days, this may not be right for you.
A fair comparison.
A probiotic adds a few strains. Fermented whole foods bring the fiber good bacteria need, plus the probiotics and postbiotics fermentation creates.
| Feature | Gussy's Gut® | Typical probiotic |
|---|---|---|
| What it is | Whole superfoods, fermented | Lab-grown strains in a powder or chew |
| Probiotics | Created by two weeks of fermentation | A few isolated strains |
| Variety of cultures | A diverse mix from 18 fermented whole foods | A few lab-selected strains |
| Food for those cultures (prebiotic fiber) | Built in, from 18 whole foods | Usually not |
| Postbiotics (what good bacteria make) | Made during fermentation | Not included |
| How it's made | Fermented for two weeks | Cultured, then dried |
| Greens, herbs and vegetables | 18 superfoods | Not included |
| Formulated by a vet | With Dr. Ian Billinghurst | Varies |
| How you give it | Stir a spoonful into their bowl | Chew or capsule |
A healthy gut is a crowd, not a few soloists. Thousands of kinds of bacteria live there, and they work best as a team. Most probiotics add the same few lab-picked strains, scoop after scoop, a bit like planting one crop in the same field every year.
Gussy's works the way nature does. Fermenting 18 whole foods brings a wide mix of cultures, the fiber that feeds them and the postbiotics they make, so your dog's gut gets a whole garden instead of a single crop.
Probiotics help with one problem. Gussy's helps with many.
Our Chief Veterinary Advisor & Formulator
“This is the single most important upgrade to dog food in over 25 years.”
Dr. Ian Billinghurst, Chief Veterinary Advisor & Formulator
Rob met Dr. B in 2000, when he wanted to raw-feed his first Lab, Buddy. Twenty-plus years later, they built Boost™ together.
Meet Dr. Billinghurst →Trusted by the vets who know
Integrative and raw-feeding vets on why they recommend fermented whole foods for the dogs in their care.
Father of Raw Feeding
“I start every gut recovery program with fermented foods”
Holistic Vet
“Fermentation is super important if you want to heal a leaky gut”
Holistic Vet
“Gussy's Gut Provides the nutrients that dogs need”
Holistic Vet
“Gussy's Gut mimics what animals have been eating for 20,000 years”
Holistic Vet
“Fermented vegetables supercharge the gut”
Holistic Vet
“I recommend this to all of my clients and they love Gussy's Gut”
Holistic Vet
“Give it 60-90 days to feed the bacteria to fix the gut”
Holistic Vet
“The only way pets can get these nutrients is through the fermentation process”
Gus, my black Lab, swallowed a bottle cap. It took seven days to pass. I started fermenting vegetables in my kitchen to support his gut, and that's where Gussy's Gut began. His face is on every bag.
Our job is simple: make it easy for people to raise dogs that live long, healthy lives.
What comes next
Start with Boost™. Add Youthful Grasses & Sprouts™ for grass and poop eaters. Move to Sustain™ after 90 days. Add Fiber & Fortifier™ for the fiber side of a raw or homemade bowl.
For the dog who grazes the lawn or goes for the poop. Add it to Boost.
The fiber side of the bowl: 13 whole foods that replace the pumpkin, the apple pectin and the chopping.
Questions
Short answers, written by the people who make it. Still stuck? Ask us on the contact page.
One teaspoon per 20 lb of body weight, once a day, over any food. Add a splash of water and stir it in, never dry. New to it? Start with a quarter of the dose and build up over one to two weeks.
A 7.5 oz bag holds 97 teaspoons, so it lasts a 20 lb dog about 97 days, a 40 lb dog about 48, a 60 lb dog about 32. The 90-Day Reset above sizes the bags for you.
It's food, not isolated strains. Fermentation creates probiotics and postbiotics, and the whole vegetables bring prebiotic fiber for them to live on. If your vet prescribed a probiotic, ask them first.
All three. Dr. Billinghurst's hierarchy runs raw, home-cooked, gently cooked, canned, kibble, and most dogs eat somewhere in the middle. A teaspoon of fermented superfoods is an easy upgrade at any level.
A gut garden takes a season, not a weekend. If you're not willing to give it 90 days, this may not be right for you.
The 90-Day Reset sizes the bags to your dog's weight for 90 days: 30% off every delivery (40% for dogs over 100 lb), free shipping, and a 100-day return policy. Subscribe & Save on a single bag is 15% off every delivery. The two don't stack.
If your dog doesn’t love the taste, return the pack within 30 days of your first order with at least half of it unused and we’ll refund you 100%, shipping included — or store credit if you’d rather. One pack per first order; if you bought several, any extra packs can be donated to your local shelter.
100-Day Return Policy on the 90-Day Reset subscription. Use it for the full 90 days. If it doesn’t work for your dog, we’ll refund you 100% to your original payment method, shipping included, any time within 100 days. Applies to the 90-Day Reset subscription only (it’s labelled in your cart and on your receipt).
Youthful Grasses & Sprouts™ is our only cat product.
Yes, any time, from your account. Skip a delivery, change the date or cancel outright.
GusFeeding tips, new batches, and the occasional Gus update. No spam.
“This is the single most important upgrade to dog food in over 25 years.”
