Compare supplements · Dog Digestive
Best dog probiotics and digestive supplements, compared with canine research
245 products listed · Listings only — label data not yet collected for this category
Every dog digestive supplement we track on Amazon: what each one lists, how popular it is relative to the others, and how strong the canine evidence is for its main ingredients.
- 11 rated supportive · 206 mixed · 22 insufficient · 6 not yet rated
- Most common: Probiotic, prebiotic and enzyme blends, in 75 products (3 of the 20 most popular)
Read the analysis: best sellers vs the evidence →What matters when choosing
Popular questions: Kaolin, smectite or bentonite clay for dog diarrhea: the evidence · Probiotics for acute diarrhea in dogs · Pumpkin for dogs with diarrhea
Evidence picks by need
Picks for this category are on hold while our reviewer checks how the Supportive-rated products should be presented. See what matters when choosing for how to compare labels.
Showing 30 of 245 products
| Product | Ingredients / form | Popularity | Evidence | Amazon |
|---|---|---|---|---|
| Purina Pro Plan Veterinary Supplements FortiFlora Dog Probiotic SupplementPro Plan Veterinary Diets · B001650NNW · Listing only | Enterococcus faecium POWDER | Rank #1 of 209 | MixedProbiotics only | Check price on Amazon |
| Nutramax Proviable Probiotics + Prebiotics, for Dogs & Cats, Capsules, 80ctNutramax · B001O3UE9E · Listing only | Lactobacillus acidophilus; Lactobacillus; Bifidobacterium; Enterococcus faecium; FOS CAPSULE | Rank #2 of 209 | MixedSynbiotics (probiotic + prebiotic) | Check price on Amazon |
| Nutramax Proviable Probiotics for Dogs & Cats, Sprinkle Capsules, 30ctNutramax · B0050JM626 · Listing only | Lactobacillus acidophilus; Lactobacillus; Bifidobacterium; Enterococcus faecium; FOS CAPSULE | Rank #3 of 209 | MixedSynbiotics (probiotic + prebiotic) | Check price on Amazon |
| Vetnique Glandex for Dogs Anal Gland Chews 60ct Pumpkin + Digestive EnzymesVetnique · B00ZJ5BJ74 · Listing only | Lactobacillus acidophilus; Lactobacillus; Bromelain; Pumpkin; Pectin; Cellulose CHEW | Rank #4 of 209 | MixedPumpkin, Probiotic and enzyme blends | Check price on Amazon |
| Vetnique Glandex for Dogs Anal Gland Chews 30ct, Pumpkin, Digestive EnzymesVetnique · B01L2K1R76 · Listing only | Lactobacillus acidophilus; Lactobacillus; Bromelain; Pumpkin; Pectin; Cellulose CHEW | Rank #5 of 209 | MixedPumpkin, Probiotic and enzyme blends | Check price on Amazon |
| Zesty Paws Probiotics for Dogs - Gut Health Soft Chews, Pumpkin, 90 CtZesty Paws · B01N17VJF7 · Listing only | Probiotics; Pumpkin; Flaxseed CHEW | Rank #6 of 209 | MixedPumpkin, Probiotics only | Check price on Amazon |
| PetLab Co. Probiotic Chews for Dogs, 30 Soft Chews, PorkPetLab Co. · B089XVJHFK · Listing only | Lactobacillus; Bifidobacterium; Bacillus coagulans; FOS; Inulin; Pumpkin CHEW | Rank #7 of 209 | MixedPumpkin, Synbiotics (probiotic + prebiotic) | Check price on Amazon |
| Nutri-Vet Pre & Probiotics for Dogs, Dog Probiotics, 120 Soft ChewsNutri-Vet · B01IUYFBPQ · Listing only | Lactobacillus acidophilus; Lactobacillus; Bifidobacterium CHEW | Rank #8 of 209 | MixedProbiotic and enzyme blends | Check price on Amazon |
| Purina Pro Plan Supplements FortiFlora Dog Probiotic Tablets, 45 CountPurina Pro Plan · B083XLYRYH · Listing only | Enterococcus faecium; Cellulose TABLET | Rank #9 of 209 | MixedProbiotics only | Check price on Amazon |
| Nutramax Proviable Probiotics + Prebiotics for DogsNutramax Laboratories · B001O490JI · Listing only | Lactobacillus acidophilus; Lactobacillus; Bifidobacterium; Enterococcus faecium; FOS; Pectin; Kaolin CAPSULE | Rank #10 of 209 | MixedClay / adsorbent anti-diarrhea formulas | Check price on Amazon |
| Nutramax Proviable Probiotics + Prebiotics for Dogs, Chewable Tablets, 60ctNutramax Laboratories · B08BW6HPCM · Listing only | Lactobacillus acidophilus; Lactobacillus; Bifidobacterium; Enterococcus faecium; Cellulose TABLET | Rank #11 of 209 | MixedSynbiotics (probiotic + prebiotic) | Check price on Amazon |
| Fera Pets Organic Probiotics for Dogs & Cats with Prebiotics, 60 ScoopsFera Pets · B078955BY2 · Listing only | Listing mentions: Probiotics; FOS POWDER | Rank #12 of 209 | MixedSynbiotics (probiotic + prebiotic) | Check price on Amazon |
| Fruitables Pumpkin Digestive Supplement, Fiber Supplement for Dogs, 15ozFruitables · B001E0L6Z8 · Listing only | Pumpkin; Ginger LIQUID | Rank #13 of 209 | InsufficientPumpkin | Check price on Amazon |
| Purina Pro Plan Vet Supplements FortiFlora Dog Probiotic Tablets, 90 ctPro Plan Veterinary Diets · B083XD2V4C · Listing only | Enterococcus faecium; Cellulose TABLET | Rank #14 of 209 | MixedProbiotics only | Check price on Amazon |
| Bernie's Perfect Poop 4-in-1 Dog Digestion Supplement, Cheese, 12.8 ozBernie's · B07L6QC3TW · Listing only | Bacillus coagulans; Bacillus subtilis; Inulin; Protease; Amylase; Lipase; Cellulase; Bromelain POWDER | Rank #15 of 209 | MixedProbiotic, prebiotic and enzyme blends | Check price on Amazon |
| Zesty Paws Probiotics for Dogs - Gut Health for Dogs, Chicken, 90 CtZesty Paws · B07RY9X1XH · Listing only | Probiotics; Prebiotics; Pumpkin; Cellulose; Flaxseed CHEW | Rank #16 of 209 | MixedPumpkin, Probiotic, prebiotic and enzyme blends | Check price on Amazon |
| PetLab Co. Probiotic Chews for Dogs, 30 Soft Chews, SalmonPetLab Co. · B0C345HDWR · Listing only | Bacillus coagulans; Saccharomyces; FOS CHEW | Rank #17 of 209 | MixedSynbiotics (probiotic + prebiotic) | Check price on Amazon |
| PetLab Co. Allergy & Immune Probiotic Chews, 30 Soft Chews, PorkPetLab Co. · B0C1HNMSGP · Listing only | Probiotics; FOS CHEW | Rank #18 of 209 | MixedSynbiotics (probiotic + prebiotic) | Check price on Amazon |
| Native Pet Pumpkin for Dogs - Organic Dog Food Topper Powder - Promotes Firm Stools, Supports Digestive,…Native Pet · B07PMFF7FW · Listing only | Pumpkin POWDER | Rank #19 of 209 | InsufficientPumpkin | Check price on Amazon |
| Bernie's Perfect Poop 4-in-1 Dog Digestion Supplement, Cheese, 4.2 ozBernie's · B086YL81LF · Listing only | Bacillus coagulans; Bacillus subtilis; Inulin; Protease; Amylase; Lipase; Cellulase; Bromelain POWDER | Rank #20 of 209 | MixedProbiotic, prebiotic and enzyme blends | Check price on Amazon |
| Vetoquinol Pro-Pectalin Chewable Probiotic for Pets, 60 CountVetoquinol · B0DPJHDJ6G · Listing only | Enterococcus faecium; Pectin; Cellulose; Kaolin TABLET | Rank #21 of 209 | MixedClay / adsorbent anti-diarrhea formulas | Check price on Amazon |
| PetLab Co. Probiotic Chews for Dogs, 30 Soft Chews, 2-PackPetLab Co. · B0BZ8TFF47 · Listing only | Lactobacillus; Bifidobacterium; Bacillus coagulans; FOS; Inulin; Pumpkin CHEW | Rank #22 of 209 | MixedPumpkin, Synbiotics (probiotic + prebiotic) | Check price on Amazon |
| Pet Honesty Dog Probiotics Chews for Gut & Digestive Health, 90ct, PumpkinPet Honesty · B08175BFCX · Listing only | Lactobacillus acidophilus; Lactobacillus; Bifidobacterium; Enterococcus faecium; Bacillus subtilis; Inulin; Chicory; Pumpkin CHEW | Rank #23 of 209 | MixedPumpkin, Probiotic, prebiotic and enzyme blends | Check price on Amazon |
| Zesty Paws Probiotics for Dogs, Digestive Enzymes Gut Flora, Digestive HealthZesty Paws · B0C6FQ4QXV · Listing only | Lactobacillus acidophilus; Lactobacillus; Bacillus subtilis CHEW | Rank #24 of 209 | MixedProbiotic and enzyme blends | Check price on Amazon |
| Amazon Brand - Wag Probiotic Supplement Chews for Dogs, Supports Digestive Health and Gut Flora, Natural Duck…WAG · B085TWQN4G · Listing only | Bacillus coagulans; FOS; Pectin CHEW | Rank #25 of 209 | MixedSynbiotics (probiotic + prebiotic) | Check price on Amazon |
| Native Pet Probiotics for Dogs – Dog Probiotic Powder for Gut & Digestive Health, 6B CFUs Dog-Specific…Native Pet · B08JD12FLY · Listing only | Bifidobacterium; Enterococcus faecium; Bacillus coagulans; Inulin; Pumpkin POWDER | Rank #26 of 209 | MixedPumpkin, Synbiotics (probiotic + prebiotic) | Check price on Amazon |
| Vetnique Glandex for Dogs Anal Gland Chews 60ct Pumpkin + Digestive EnzymesVetnique · B08157SBLM · Listing only | Lactobacillus acidophilus; Lactobacillus; Bromelain; Pumpkin; Pectin; Cellulose CHEW | Rank #27 of 209 | MixedPumpkin, Probiotic and enzyme blends | Check price on Amazon |
| Vetnique Glandex for Dogs Anal Gland Chews 30ct Pumpkin + Digestive EnzymesVetnique · B08157ZGBF · Listing only | Lactobacillus acidophilus; Lactobacillus; Bromelain; Pumpkin; Pectin CHEW | Rank #28 of 209 | MixedPumpkin, Probiotic and enzyme blends | Check price on Amazon |
| Native Pet Probiotics for Dogs – Dog Probiotic Powder for Gut & Digestive Health, 6B CFUs Dog-Specific…Native Pet · B0BS4SVVCK · Listing only | Bifidobacterium; Enterococcus faecium; Bacillus coagulans; Inulin; Pumpkin POWDER | Rank #29 of 209 | MixedPumpkin, Synbiotics (probiotic + prebiotic) | Check price on Amazon |
| Bernie's Perfect Poop 4-in-1 Dog Digestion Supplement, Chicken, 12.8 ozBernie's · B07TM54XJD · Listing only | Bacillus coagulans; Bacillus subtilis; FOS; Inulin; Protease; Amylase; Lipase; Cellulase POWDER | Rank #30 of 209 | MixedProbiotic, prebiotic and enzyme blends | Check price on Amazon |
Where this data comes from
- Listing data (name, ingredients, form) is shown as it appeared on Amazon, collected in September 2026. It has not been checked against product labels.
- Popularity is a relative rank within this comparison, built from recent purchases (45%), review volume (35%) and star rating (20%). It is not Amazon's Best Sellers Rank and not a measure of quality or effectiveness.
- Evidence ratings are our own review of canine research on each product's main listed ingredients, re-checked against the published studies on 2026-09-29 using the rules in our methodology. They describe the ingredients, not the exact product.
- Amazon links are not affiliate links. We earn nothing when you click them. No prices are shown on this site; check the current price on Amazon. Table last updated 2026-09-29; next scheduled refresh December 2026. Report an error.
Frequently asked questions
What is the best supplement for a dog's digestion?
There is no single best digestive supplement. The evidence belongs to the exact product tested for a specific problem, and for sudden diarrhea reviews do not find a consistent, clinically important benefit from probiotics overall. Persistent or severe digestive signs need a veterinarian.
Do probiotics help dogs with diarrhea?
Some specific products shortened diarrhea in individual trials, but reviews do not find a consistent, clinically important benefit. A 2024 ENOVAT meta-analysis found no clinically significant shortening of diarrhea overall, and its guideline makes no recommendation for or against probiotics.
Do healthy dogs need digestive enzymes?
Current evidence says no for routine use. In a controlled study of 14 healthy adult Beagles on a commercial diet, neither a plant- nor an animal-origin enzyme supplement improved protein, fat or energy digestibility.
Guides for dog digestive
Best sellers vs the evidenceWhich ingredients the most popular products rely on, and how well they are supported.What matters when choosingHow to read the columns in this table before you compare products.Clay for Dogs With Diarrhea: Kaolin, Smectite and Bentonite ComparedClay products for dog diarrhea compared: what kaolin, smectite (montmorillonite) and bentonite are, which has dog trials, and when to call the vet.Do Healthy Dogs Need Digestive Enzyme Supplements?Digestive enzyme supplements are sold for healthy dogs, but a controlled study found no digestibility benefit. Enzyme evidence applies to diagnosed EPI.FortiFlora vs Proviable: what each label gives your dog, and what trials testedFortiFlora is one strain (SF68); Proviable is seven strains plus prebiotics, and its kit adds a kaolin paste. Label CFU and dog trials compared. No paid ranking.How to Read a Probiotic Label for Dogs: Strain, CFU and Formula ContextHow to read a dog probiotic label: why the strain name matters, what CFU per serving means, and how to match a product to the strains that were studied.Pancreatic Enzymes for Dogs With EPI: Why This Evidence Does Not Apply to Routine Digestive-Enzyme SupplementsPancreatic enzyme supplements for dogs are standard care in diagnosed EPI. That evidence does not support routine digestive enzymes for healthy dogs.Do Probiotics Help Acute Diarrhea in Dogs?Some probiotic formulas may shorten acute diarrhea in dogs, but results are inconsistent and formula-specific. See what trials and current guidelines show.Is a Probiotic or a Prebiotic Better for Dogs?A probiotic adds live microbes; a prebiotic only feeds bacteria already in the gut. We found no head-to-head dog trial of the two.Pumpkin for Dogs With Diarrhea: Does It Work, and How Much Is Enough?Pumpkin is a popular home remedy for loose dog stool, but no dog trial has tested it and a tablespoon has under half a gram of fiber. What the evidence shows.Synbiotics for Dogs: Do Probiotic + Prebiotic Combinations Matter?Synbiotics combine probiotics and prebiotics. What controlled dog trials found, why results belong to the exact formula tested, and how to read the label.