Your dog is not what they eat — it's what they can absorb.
Gussy's Gut® makes fermented super foods and greens — whole-food supplements you add, stir, and serve. Our proprietary wild fermentation process pre-digests every ingredient, breaking down plant cell walls so the nutrients locked inside become available for your dog to actually absorb.
Even the best food is wasted on an impaired gut. That's why we start with gut health first: when absorption improves, everything your dog eats works harder for them. Gut health is at the center of all health.
Fermented = Absorbable
Fermentation pre-digests whole foods, opening every plant cell for absorption. One ounce of our powder equals one pound of fresh vegetables — concentrated nutrition your dog's body recognizes and knows how to use.
The Full Triad, Not an Isolated Strain
Every Gussy's Gut product contains prebiotics from high-nutrient vegetable sources — the food that feeds beneficial bacteria. And our wild fermentation process creates both probiotics and postbiotics. That's the full triad of gut support, working the way nature intended.
Real, Visible Signs
When gut health improves, you see it: better stool quality, a healthier coat, brighter eyes, more energy, and a zest for life that tells you your dog feels good from the inside out.
Why 90 Days?
The gut microbiome doesn't change overnight — cell turnover, microbiome rebalancing, and nutrient absorption all take time. That's why we ask every dog owner for 90 consecutive days of daily feeding before evaluating results. Many see changes in the first few weeks, but the full transformation takes the full 90.
Clearing
Early detoxification and inflammation support as the gut begins to shift.
Rebalancing
The gut terrain adapts and beneficial microbes strengthen.
Rebuilding
Deeper repair takes hold and long-term benefits lock in.
If you're not willing to give it 90 days, this product may not be right for you. We'd rather set honest expectations than overpromise.
Every product has a place in your dog's gut health journey.
Start with a reset, maintain the gains, and support the system along the way. Here's how the lineup works together.
The ResetBoost™
19 fermented, organic super foods used daily for 90 consecutive days to reset your dog's gut microbiome. This is where every dog starts.
Learn more →
The MaintenanceSustain™
9 fermented, organic super foods for ongoing daily support after the reset — fewer ingredients, each in higher concentration, to sustain the gains.
Learn more →
The SuperchargerYouthful Grasses & Sprouts™
Add it to Boost or Sustain for young grasses and sprouts at their peak vitality — sprouted AND fermented for double the absorption benefit. The only product also suitable for cats.
Learn more →
The Meal BalancerFiber & Fortifier™
Our only non-fermented powder. It adds whole-food fiber and whole-food nutrients to the bowl — and it's designed to work alongside one of our fermented blends, never on its own.
Learn more →
Between MealsGutAbles®
A treat that supports gut health between feedings. GutAbles work with the powders, not instead of them.
See GutAbles below →
This is the single most important upgrade to dog food in over 25 years.
— Dr. Ian Billinghurst | Chief Veterinary Advisor & Formulator, Gussy's Gut
Every formula is developed with Dr. Ian Billinghurst — veterinary surgeon, father of raw feeding, and a pioneer of species-appropriate nutrition for more than 40 years.
Build Your Bundle
Mix and match our powders — the more bags you add, the more you save.
Boost™
Our foundational 90-day reset formula: 19 fermented, organic super foods that support detoxification, a balanced microbiome, and healthy aging. This is where every dog's journey begins.
Concentrated from 7 1/2 lbs of ingredients
Sustain™
Year-round daily maintenance after the reset: 9 fermented, organic super foods, each in higher concentration, to sustain your dog's gut health gains for the long haul.
Concentrated from 7 1/2 lbs of ingredients
Fiber & Fortifier™
Our only non-fermented blend: 13 organic vegetables and fruits delivering whole-food fiber and a wide spectrum of whole-food vitamins, minerals, and phytonutrients. Designed to work alongside Boost, Sustain, or Youthful Grasses & Sprouts — let us do the shopping, the chopping, and the serving.
Concentrated from 10 lbs of Fresh Produce
30-Day Taste Guarantee on your first purchase — if your dog doesn't love it, we'll refund you in full, shipping included. Made in small batches in the USA. Farm to bowl.
GutAbles® — A treat that treats their gut well.
Most dog treats undo the good work you're doing at mealtime — filled with flours, fillers, and ingredients that don't belong anywhere near a healthy gut. GutAbles are the opposite.
Every GutAble starts with quality animal protein, our fermented organic super foods, and a touch of organic Manuka honey — every ingredient good enough to go straight into the bowl, made into a treat instead. No preservatives, no additives, no fillers. Nothing your dog doesn't need.
GutAbles support gut health between meals, working alongside our powders throughout the day. They're not a replacement for Boost or Sustain — they're the reward that keeps the good going between feedings. And fair warning from our customers: dogs go absolutely crazy for them.
$26.97·25-day supply per pouch · 2-year shelf life
Featured on Susan Thixton's 2025/2026 Treat List for transparency and ingredient integrity.
Real Dogs. Real Results.
Thousands of dog owners have made the 90-day commitment. Here's what they're seeing.
