10 Best Digestive Supplements & Probiotics for Horses 2026: According to Reviews | Chewy

The 10 Best Digestive Supplements & Probiotics for Horses

How we created this digestive supplements & probiotic list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best digestive supplements & probiotics for horse.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best digestive supplements & probiotics for horses.

Key digestive supplements & probiotic considerations

Digestive Enzymes

Prebiotics

Probiotic Strains

Quality Ingredients

Our Top Picks

1
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count
Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count

Probios Equine Probiotic Apple Flavor Soft Chew Horse Supplement, 60 count

Rated 4.7 out of 5 stars
672
$15.44 Chewy Price
($0.26/serving)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.5/5
Great

Prebiotics

4.5/5
Great

Probiotic Strains

4.7/5
Excellent

Quality Ingredients

4.6/5
Excellent

Is this digestive supplements & probiotic right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Oat Flour, Cane Molasses, Barley Flour, Brewers Dried Yeast, Glycerin

Food Flavor

Apple, Fruits & Vegetables

Farm Animal Type

Horse
2
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe
Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe

Ulcergard Omeprazole Paste Horse Treatment, 1 syringe, .22-oz syringe

Rated 4.9 out of 5 stars
325
$45.99 Chewy Price
($209.05/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.6/5
Excellent

Prebiotics

4.7/5
Excellent

Probiotic Strains

4.4/5
Great

Quality Ingredients

4.6/5
Excellent

Is this digestive supplements & probiotic right for my pet?

Lifestage

Adult, All Lifestages

Top Ingredient

Active Ingredient: Omeprazole

Farm Animal Type

Horse

Health Feature

Digestive Health
3
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket
Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket

Farnam SandClear Natural Psyllium Fiber Crumbles Apple/Molasses Flavor Horse Supplement, 10-lb bucket

Rated 4.8 out of 5 stars
394
$83.49 Chewy Price
($2.61/serving)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.6/5
Excellent

Prebiotics

4.5/5
Great

Probiotic Strains

4.5/5
Great

Quality Ingredients

4.4/5
Great

Is this digestive supplements & probiotic right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Psyllium Seed Husk, Wheat Middlings, Natural And Artificial Flavors, Alfalfa Meal, Dehydrated

Food Flavor

Apple, Molasses, Fruits & Vegetables, Herbs & Spices

Farm Animal Type

Horse
4
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub
AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub

AniMed Professional Strength Remission Hoof Health Powder Horse Supplement, 4-lb tub

Rated 4.7 out of 5 stars
381
$32.89 Chewy Price
($0.26/serving)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.4/5
Great

Prebiotics

4.4/5
Great

Probiotic Strains

4.5/5
Great

Quality Ingredients

4.5/5
Great

Is this digestive supplements & probiotic right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Magnesium Oxide, Flaxseed Meal, Stabilized Rice Bran, Brewer's Yeast, Chromium Tripicolinate

Farm Animal Type

Horse

Food Form

Supplement
5
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag
Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag

Purina Animal Nutrition Purina RepleniMash Product Horse Electrolyte Supplement, 25-lb bag

Rated 4.9 out of 5 stars
54
$36.99 Chewy Price
($1.48/lb)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.8/5
Excellent

Prebiotics

4.8/5
Excellent

Probiotic Strains

4.8/5
Excellent

Quality Ingredients

4.8/5
Excellent

Is this digestive supplements & probiotic right for my pet?

Top Ingredients

Wheat Middlings, Dried Plain Beet Pulp, Barley, Dried Carrot, Salt

Farm Animal Type

Horse

Food Form

Supplement
6
Tribute Equine Nutrition Constant Comfort Gastric Health Horse Supplement, 15-lbs block
Tribute Equine Nutrition Constant Comfort Gastric Health Horse Supplement, 15-lbs block
Tribute Equine Nutrition Constant Comfort Gastric Health Horse Supplement, 15-lbs block
Tribute Equine Nutrition Constant Comfort Gastric Health Horse Supplement, 15-lbs block
Tribute Equine Nutrition Constant Comfort Gastric Health Horse Supplement, 15-lbs block

Tribute Equine Nutrition Constant Comfort Gastric Health Horse Supplement, 15-lbs block

Rated 4.6 out of 5 stars
275
$16.17 Chewy Price
($0.81/serving)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.2/5
Great

Prebiotics

4.5/5
Great

Probiotic Strains

4.3/5
Great

Quality Ingredients

4.4/5
Great

Is this digestive supplements & probiotic right for my pet?

Top Ingredients

Dehydrated Alfalfa Meal, Salt, Wheat Middlings, Seaweed Derived Calcium, Cane Molasses

Farm Animal Type

Horse

Food Form

Feeders / Blocks, Supplement

Health Feature

Digestive Health
7
Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle
Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle
Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle
Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle

Finish Line U-7 Gastric Aid Liquid Horse Supplement, 128-fl oz bottle

Rated 4.9 out of 5 stars
105
$78.95 Chewy Price
($0.62/serving)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.8/5
Excellent

Prebiotics

4.7/5
Excellent

Probiotic Strains

4.5/5
Great

Quality Ingredients

4.7/5
Excellent

Is this digestive supplements & probiotic right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Active Ingredients: Ascorbic Acid, MSM, Apple Pectin, Brewer's Yeast, Grape Seed Extract

Special Diet

Flax-Free, No Corn No Wheat No Soy

Farm Animal Type

Horse
8
Kentucky Equine Research EquiShure Time-Released Hindgut Buffer Powder Horse Supplement, 2.75-lb bag
Kentucky Equine Research EquiShure Time-Released Hindgut Buffer Powder Horse Supplement, 2.75-lb bag
Kentucky Equine Research EquiShure Time-Released Hindgut Buffer Powder Horse Supplement, 2.75-lb bag

Kentucky Equine Research EquiShure Time-Released Hindgut Buffer Powder Horse Supplement, 2.75-lb bag

Rated 4.8 out of 5 stars
68
$55.05 Chewy Price
($2.63/serving)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.4/5
Great

Prebiotics

4.2/5
Great

Probiotic Strains

4.2/5
Great

Quality Ingredients

4.5/5
Great

Is this digestive supplements & probiotic right for my pet?

Lifestage

All Lifestages, Adult

Top Ingredients

Monoglycerides, sodium bicarbonate, hydrogenated vegetable oil., Active Ingredients: Sodium bicarbonate

Special Diet

Molasses-Free, Low Glycemic, Low NSC, Low Starch...

Food Flavor

Unflavored
9
Buckeye Nutrition Foal Starter Milk-Based Pelleted Foal Creep Feed, 50-lb bag
Buckeye Nutrition Foal Starter Milk-Based Pelleted Foal Creep Feed, 50-lb bag
Buckeye Nutrition Foal Starter Milk-Based Pelleted Foal Creep Feed, 50-lb bag
Buckeye Nutrition Foal Starter Milk-Based Pelleted Foal Creep Feed, 50-lb bag

Buckeye Nutrition Foal Starter Milk-Based Pelleted Foal Creep Feed, 50-lb bag

Rated 4.6 out of 5 stars
135
$45.49 Chewy Price
($0.91/lb)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.6/5
Excellent

Prebiotics

4.6/5
Excellent

Probiotic Strains

4.6/5
Excellent

Quality Ingredients

4.7/5
Excellent

Is this digestive supplements & probiotic right for my pet?

Top Ingredients

Steam Rolled Oats, Soybean Meal, Dried Whey, Wheat Middlings, Dried Beet Pulp. Calcium Carbonate

Special Diet

Molasses-Free

Food Flavor

Fruits & Vegetables

Farm Animal Type

Horse
10
Miracle Salt Collective Natural Himalayan Salt Lick, 10-lb block
Miracle Salt Collective Natural Himalayan Salt Lick, 10-lb block
Miracle Salt Collective Natural Himalayan Salt Lick, 10-lb block
Miracle Salt Collective Natural Himalayan Salt Lick, 10-lb block
Miracle Salt Collective Natural Himalayan Salt Lick, 10-lb block

Miracle Salt Collective Natural Himalayan Salt Lick, 10-lb block

Rated 4.9 out of 5 stars
167
$21.99 Chewy Price
($2.20/lb)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Digestive Enzymes

4.1/5
Great

Prebiotics

4.7/5
Excellent

Probiotic Strains

4.7/5
Excellent

Quality Ingredients

4.7/5
Excellent

Is this digestive supplements & probiotic right for my pet?

Top Ingredient

Pure Himalayan Pink Salt

Material

Stone

Farm Animal Type

Livestock, Horse

Food Form

Feeders / Blocks