Sustain™

Name: Gussys Gut Sustain™ - Sustain™
Brand: Gussys Gut
SKU: 46151087227138
Price: 69.0 USD
Availability: InStock
Rating: 5 (6 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$69.00

Quantity

One time purchase

$69.00

Subscribe & save

Save 15%

$58.65$69.00

Delivers every month

Color

Black

Quantity

Blend of fermented prebiotic fibers supports healthy digestion and gut microbiome balance
Nine organic, human-grade ingredients provide comprehensive nutrition for dogs
Bioavailable, easily digestible form ensures effective absorption and minimal waste
Unflavored and non-GMO for sensitive pets and clean supplementation
Can be combined with other Gussy's Gut products for enhanced gut health

Summarized by Shop

5.0

26 ratings

I have been using this product gor a while. It has really helped my dogs digestion and made their coat healthier. My only isdue is that it's expensive.

Claire · 6 days ago

Great service as always

Marina · August 19, 2026

Great product! Keeps my girl on track with her digestive system!

Carrie · May 15, 2026

Returns accepted within 30 days

Exclusions may apply. See full policy

Gussys Gut

4.8 (382)

Product description loading

This is the product description text that will appear here.

Gussys Gut

Boost™

(111)

$47.00

Exclusive offer available

Jope

Jope Hip & Joint Dog Chews - 60 Count

(678)

$62.93

Dr. Judy Morgan's Naturally Healthy Pets

Gussy's Gut | Youthful Grasses & Sprouts for Dogs & Cats

(2)

$59.00

Exclusive offer available

Dr. Harvey's

Paradigm

(120)

$59.95

Exclusive offer available

Adored Beast Apothecary

Potent-Sea Omega-3 | EPA & DHA

(111)

$39.99

Adored Beast Apothecary

4.7

(2.7K)

The Simple Food Project

Simple Food Project Food For Dogs

(1K)

$34.49

Dr. Judy Morgan's Naturally Healthy Pets

GastroElm Plus Digestive Support

(19)

$38.95

Dr. Judy Morgan's Naturally Healthy Pets

Adored Beast Apothecary | Gut Soothe

(17)

$34.99

Rigby

Beef | 6-Pack

(256)

$39.99

Exclusive offer available

AnimalBiome

Gut Restore from Raw-Fed Dogs

(13)

$195.00

Nourish Pet Co.

Gut + Immunity

(40)

$30.88

BetterWild

4.5

(5.5K)

Dr. Judy Morgan's Naturally Healthy Pets

Green Juju | Golden Blend

(4)

$13.99

Dr. Judy Morgan's Naturally Healthy Pets

Solutions Pet Products | Milk Thistle - 8oz

(6)

$45.99

Gussys Gut

Youthful Grasses & Sprouts

(75)

$59.00

Exclusive offer available

AnimalBiome

Gut Restore for Dogs

(200)

$125.00

Dr. Judy Morgan's Naturally Healthy Pets

4.8

(1.9K)

A jar labeled Dr. Judy’s Bulk PEA for Equines & Large Dogs - 84g dietary supplement with text: 50% OFF! Use code 27PEA50. Contains Palmitoylethanolamide (PEA) for inflammatory support. Product expiration date 01/2027. For equines and large dogs.

Five 16oz bottles of Crude Carnivore Bone Broth—beef, pork, chicken, lamb, and turkey in vibrant labels—are displayed as a nutritious bowl topper to support pet health.

A round silver tin of Woof Creek | Flea + Tick Defense for Dogs + Cats, an all-natural supplement with purple and white label, dog graphic on lid and side, featuring effective functional mushroom powder for pets.

A box and dropper bottle of Dr. Judy Morgan's Dental Health Formula for dogs and cats, featuring an illustrated woman in a lab coat holding a dog, with green and yellow branding emphasizing pet dental health and natural ingredients.

Exclusive offer available

Adored Beast Apothecary

Liver Tonic | Support & Detoxifier

(200)

$29.99

Dr. Judy Morgan's Naturally Healthy Pets

Green Juju Just Greens - Freeze Dried Green Vegetable Blend

(22)

$13.99

Petplanet

Sustain Supplement for Large Breed Dogs - 30 Sachets

(7)

£36.98

Exclusive offer available

Adored Beast Apothecary

Turkey Tail Mushrooms | Liquid Extract

(91)

$32.99

Dr. Judy Morgan's Naturally Healthy Pets

BioVibrant | HEART+ (Taurine Plus) - 3.5oz

(3)

$25.99

Dr. Judy Morgan's Naturally Healthy Pets

Dog Gone Pain

(12)

$39.99

Exclusive offer available

AnimalBiome

Skin Rescue

(11)

$45.00

Real Mushrooms

4.9

(4.5K)

White bottle labeled "Pet Defenders™ Organic Mushroom Blend Capsules for Pets" by Real Mushrooms, an immune support supplement for dogs and cats with 90 veterinarian-formulated capsules featuring organic mushroom extracts.

Real Mushrooms Turkey Tail Extract Capsules for Pets offers 90 capsules of veterinarian-formulated immune support for dogs and cats, made with organic turkey tail mushroom and rich in beta-glucans.

Container of 'Healthy Paws' pre, pro, and postbiotic gut supplement for dogs on a white background

Exclusive offer available

petconnection.ie

Healthy Paws Pre, Pro & Postbiotic Gut Supplement for Dogs | Digestive & Stool Support

$15.35

Exclusive offer available

Adored Beast Apothecary

Rebalancer

(60)

$27.99

Dr. Judy Morgan's Naturally Healthy Pets

Adored Beast Apothecary Potent-Sea | Omega-3

(12)

$39.99

Dr. Judy Morgan's Naturally Healthy Pets

Rx D3

(4)

$27.29

Dr. Harvey's

4.7

(1.6K)

Dr. Harvey's Canine Health Miracle Dog Food Pre-Mix, 5 lb white resealable bag with floral design

Dr. Harvey's Raw Vibrance grain-free raw diet dog food base mix, 3 lb bag with floral design

Dr. Harvey's Every Dog Health Whole-Grain Chicken Recipe complete dog food, 5 lb bag with a German Shorthaired Pointer

Dr. Harvey's Specialty Diets Limited Ingredient Lamb Recipe dog food bag, 5 lbs, with golden retriever illustration

Exclusive offer available

AnimalBiome

Gut Maintain for Dogs

(43)

$45.00

Exclusive offer available

Dr. Harvey's

Raw Vibrance

(240)

$58.95

Dr. Judy Morgan's Naturally Healthy Pets

Dr. Judy's Bulk PEA for Equines & Large Dogs - 84g

(22)

$119.99

Exclusive offer available

Adored Beast Apothecary

Soil & Sea | Primordial Pre & Probiotics

(56)

$55.99

Exclusive offer available

Sustenance Herbs

Pet Probiotic & Digestive Enzyme Blend – Gut Health Support for Dogs & Cats

(25)

$33.00

Exclusive offer available

Adored Beast Apothecary

The Wolf | Species Appropriate Probiotic

(51)

$59.99

AnimalBiome

4.1

(941)

Jar of S. boulardii + FOS probiotic and prebiotic powder for pets on a light background

Dr. Judy Morgan's Naturally Healthy Pets

TEEF for Life | Protektin 42+K™ - Water Additive for Dental + Kidney Care

(5)

$89.00

Fera Pets

USDA Organic Mushroom Blend for Immune Support

(62)

$34.95

Exclusive offer available

Cosmo's Superior

Cosmo's Signature Chicken Jerky - 8 oz

(71)

$26.49

Exclusive offer available

Adored Beast Apothecary

Jump for JOYnts | Joint Support

(127)

$29.99

Exclusive offer available

Adored Beast Apothecary

Easy Peesy II | Nutraceutical Powder

(11)

$32.99

Dr. Judy Morgan's Naturally Healthy Pets

Legacy Biome | Premium FMT Capsules

(2)

$199.99

Dr. Judy Morgan's Naturally Healthy Pets

Adored Beast Apothecary | Pawsitive Immunity - 40g

(2)

$39.99

Gussys Gut

Fiber & Fortifier™

(5)

$46.00

Cat enrichment essentials

Valerian toys, lickables, and puzzle feeders.

Exclusive offer available

Adored Beast Apothecary

Canine Gut Soothe

(381)

$34.99

Dr. Dobias International

FeelGood Omega®

(43)

$41.99

Exclusive offer available

BioPower Pet

BioPower Pet Shield Tag

(52)

$69.00$79.00

The Dog Nutritionist

Gut Health

(17)

$36.00

Goodness Gracious

Gently Cooked Rabbit Recipe for Dogs

(52)

$67.96

Dr. Judy Morgan's Naturally Healthy Pets

WOOF Green Lipped Mussel Treats

(36)

$13.99

Four Leaf Rover

4.6

(3.2K)

Jar of Turkey Tail Mushrooms powder, 1.8 ounces

Jar of Seven 'Shrooms natural immune support, 2.8 ounces

Jar of Hip & Joint, made with green lipped mussels and ESM® eggshell membrane powder, 2.9 ounces

Exclusive offer available

Shepherd Boy Farms

Beef Hearts

(12)

$15.70

Doggy Biome GMP Gut Maintenance Plus for Dogs 60-count - Dog Digestive & Probiotics Supplements 1

Exclusive offer available

HardyPaw

Doggy Biome GMP Gut Maintenance Plus for Dogs, 60-count

$45.00

Exclusive offer available

Adored Beast Apothecary

Colloidal SilverSol | *MRET Activated

(50)

$24.99

Exclusive offer available

Adored Beast Apothecary

Felix's Flora | Feline Species Specific Probiotic

(69)

$39.99

Dr. Judy Morgan's Naturally Healthy Pets

Rx Zyme

$38.29

Exclusive offer available

Shepherd Boy Farms

Beef Liver

(12)

$15.70

Gussys Gut

Boost™

(21)

$47.00

A 3oz sample pouch of Gussy's Gut Daily Boost Food Topper for dogs, featuring images of vegetables, a red tractor, and product details on the front.

Dr. Judy Morgan's Naturally Healthy Pets

Gussy's Gut | Daily Boost Food Topper - 3oz Sample

(1)

$47.00

Exclusive offer available

Dr. Harvey's

Canine Health

(312)

$52.00

Rainy day gear

Mats, towel hooks, and odor control.

Woof Creek Pet Wellness

Gut Health Support | All-Natural Health Supplement for Dogs

(18)

$38.00

The Organic Dog Shop

Healthy Gut | Digestive Health + Microbiome Support

$23.99

Allprovide

Raw Goats Milk Half Gallon(64oz)

(1)

$23.00

Dr. Judy Morgan's Naturally Healthy Pets

Adored Beast Apothecary Love Bugs Pre & Probiotic

(32)

$31.99

Dr. Judy Morgan's Naturally Healthy Pets

Carna4 Flora4 GREENS PLUS Ground Sprouted Seeds Food Topper

(11)

$28.99

Woof Creek Pet Wellness

Omega-3 Ocean Fish Oil | 16floz Glass Bottle for Dogs + Cats

(27)

$48.99

Healthy Paws

Pre, Pro & Postbiotic (Gut Supplement)

£16.99

King Lou Pets

4.9

(17.5K)

whole chicken feet pouch- 10 count - King Lou Pets

Dr. Judy Morgan's Naturally Healthy Pets

Adored Beast Apothecary Liver Tonic Support & Detoxifier

(13)

$29.99

Dr. Judy Morgan's Naturally Healthy Pets

Rx Clay

$30.49

Dr. Dobias International

JointPowder

(5)

$79.99

Exclusive offer available

Adored Beast Apothecary

Healthy Gut | Digestive Enzyme / Pre & Probiotic

(301)

$34.99

Dr. Dobias International

GutSense®

(39)

$64.99

Exclusive offer available

Adored Beast Apothecary

Fido's Flora | Canine Species Specific Probiotic

(189)

$55.99

Exclusive offer available

Dr. Harvey's

Holistix

(74)

$35.95

Petplanet

Sustain Supplement for Small and Medium Breed Dogs - 30 Sachets

(4)

£29.78

Exclusive offer available

Adored Beast Apothecary

Phyto Synergy | Super Antioxidant

(139)

$61.99

Comforting picks for pups

Crate covers, lick mats, and calming aids.

A beige 10oz bag of Gussy’s Gut | Fiber & Fortifier for Dogs features illustrations of a cat, dog, tractor, vegetables, and a farm scene. The packaging highlights its whole-food fiber blend and describes its benefits as a natural fiber supplement supporting optimal gut health in dogs.

Dr. Judy Morgan's Naturally Healthy Pets

Gussy's Gut | Fiber & Fortifier for Dogs - 10oz

$46.00

Dr. Judy Morgan's Naturally Healthy Pets

Dr. Judy Morgan's Wellness Formula

(8)

$39.99

Fera Pets

Dental Support

(55)

$29.95

Grub Club Pets

Top Dog Gut

£24.99

Exclusive offer available

Adored Beast Apothecary

Pawsitive Immunity | Colostrum Alternative

(13)

$39.99

Dr. Judy Morgan's Naturally Healthy Pets

inClover | BioBrilliant Dental Health Powder

(12)

$22.99

Jope

4.7

(698)

JOPE Synbiotic GB-01 with prebiotics and best probiotic for dogs and cats.

WS 01 weight support supplement package on a pink background with product features highlighted.

Fera Pets

Collagen Plus

(20)

$39.95

Sustain™

Highlights

Description

Specifications

Reviews5.0(26)

Delivery & Returns

Gussys Gut

You might also like

Boost™

Jope Hip & Joint Dog Chews - 60 Count

Gussy's Gut | Youthful Grasses & Sprouts for Dogs & Cats

Paradigm

Potent-Sea Omega-3 | EPA & DHA

Adored Beast Apothecary

Simple Food Project Food For Dogs

GastroElm Plus Digestive Support

Adored Beast Apothecary | Gut Soothe

Beef | 6-Pack

Gut Restore from Raw-Fed Dogs

Gut + Immunity

BetterWild

Green Juju | Golden Blend

Solutions Pet Products | Milk Thistle - 8oz

Youthful Grasses & Sprouts

Gut Restore for Dogs

Dr. Judy Morgan's Naturally Healthy Pets

Liver Tonic | Support & Detoxifier

Green Juju Just Greens - Freeze Dried Green Vegetable Blend

Sustain Supplement for Large Breed Dogs - 30 Sachets

Turkey Tail Mushrooms | Liquid Extract

BioVibrant | HEART+ (Taurine Plus) - 3.5oz

Dog Gone Pain

Skin Rescue

Real Mushrooms

Healthy Paws Pre, Pro & Postbiotic Gut Supplement for Dogs | Digestive & Stool Support

Rebalancer

Adored Beast Apothecary Potent-Sea | Omega-3

Rx D3

Dr. Harvey's

Gut Maintain for Dogs

Raw Vibrance

Dr. Judy's Bulk PEA for Equines & Large Dogs - 84g

Soil & Sea | Primordial Pre & Probiotics

Pet Probiotic & Digestive Enzyme Blend – Gut Health Support for Dogs & Cats

The Wolf | Species Appropriate Probiotic

AnimalBiome

TEEF for Life | Protektin 42+K™ - Water Additive for Dental + Kidney Care

USDA Organic Mushroom Blend for Immune Support

Cosmo's Signature Chicken Jerky - 8 oz

Jump for JOYnts | Joint Support

Easy Peesy II | Nutraceutical Powder

Legacy Biome | Premium FMT Capsules

Adored Beast Apothecary | Pawsitive Immunity - 40g

Fiber & Fortifier™

Canine Gut Soothe

FeelGood Omega®

BioPower Pet Shield Tag

Gut Health

Gently Cooked Rabbit Recipe for Dogs

WOOF Green Lipped Mussel Treats

Four Leaf Rover

Beef Hearts

Doggy Biome GMP Gut Maintenance Plus for Dogs, 60-count

Colloidal SilverSol | *MRET Activated

Felix's Flora | Feline Species Specific Probiotic

Rx Zyme

Beef Liver

Boost™

Gussy's Gut | Daily Boost Food Topper - 3oz Sample

Canine Health

Gut Health Support | All-Natural Health Supplement for Dogs

Healthy Gut | Digestive Health + Microbiome Support

Raw Goats Milk Half Gallon(64oz)

Adored Beast Apothecary Love Bugs Pre & Probiotic

Carna4 Flora4 GREENS PLUS Ground Sprouted Seeds Food Topper

Omega-3 Ocean Fish Oil | 16floz Glass Bottle for Dogs + Cats

Pre, Pro & Postbiotic (Gut Supplement)

King Lou Pets

Adored Beast Apothecary Liver Tonic Support & Detoxifier

Rx Clay