PetAg Bene-Bac Powder FOS & Probiotics for Dogs, Cats, Exotic & Wildlife Mammals, 16-oz jar

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At a Glance

  • Digestive Health
  • Immune Support
  • All Lifestages
  • All Breeds

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About This Item

Details

  • Bene-Bac is a nutritional supplement that provides digestive support to pups, kitties, exotic animals, and wildlife mammals for changing conditions such as birth, breeding, post-surgery, antibiotic therapy, weaning, worming, showing, boarding, and travel.
  • This powder contains concentrated FOS and live, naturally occurring microorganisms found in the intestinal tract of small mammals.
  • This supplement is recommended as part of the management for animals subjected to adverse conditions, and it may be used for regular maintenance in some situations.
  • Give once weekly to dogs and cats as part of a healthy diet program, every third day to orphaned infants until weaning, or daily for animals on antibiotics. Probiotics aid in digestion while modulating the immune system as well as inhibiting the growth and activity of harmful bacteria, such as E. coli, Salmonella, and Clostridium perfringens, all while helping to prevent urinary tract infections, reducing allergic reactions and controlling inflammation.
  • This supplement is not for human consumption, and it’s best to consult your veterinarian before adding to your buddy’s diet.

Ingredient Information

Instructions

FAQ

Learn More About PetAg From Our Team of Experts

A Healthy Gut Means a Happy Pet

Digestion and gut health are vital to a pet’s health, and Bene-Bac powder supports GI health with seven strains of healthy bacteria. Backed by science and formulated with probiotics and prebiotics, it’s trusted quality from PetAg. 

Quality Supplements for the Best Care

At PetAg, we strive to empower pet owners to proactively enhance the lives of their pets. Our science-based nutritional supplements are formulated with high-quality ingredients  to help pets stay healthy, happy, and by your side for years to come.

About PetAg

At PetAg, we believe in empowering pet owners to proactively enhance the lives of their pets. Delivering trusted quality since 1930, PetAg offers milk replacers, health supplements, and grooming solutions to help provide more healthy years together. 

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Questions & Answers

17 Customer Questions

if I gave the recommended dose to a rat daily or ever other day how long would it last?

Answer by Chewy • Nov 11, 2019
This 4.5 ounce (127 grams) container will contain approximately 47 teaspoon servings, since 1 level teaspoon equals approximately 2.7 grams of powder. If only giving 1/4 teaspoon each time, it would last 188 doses.

Would this help with diarrhea?

Answer by Chewy • Nov 07, 2018
The concentrated live cultures in this product aid digestion and modulate the immune system for your pet. The probiotics included may help prevent urinary tract infections, and can even reduce allergic reactions by decreasing intestinal permeability and controlling inflammation.

Hello, I'm wondering how long this product is shelf stable? There does not seem to be an expiration date on my bottle. Thank you.

Answer by ARRR • Jul 01, 2025
The exp date should be on the bottom of the bottle. Generally, shelf life is 1.5 years.

What does the FOS stand for in this product?

Answer by Chewy • Nov 27, 2018
The FOS in this supplement is Fructooligosaccharides. It aids in helping increase a healthy amount of bacteria.
Reviews
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4.6
Rated 4.6 out of 5 stars
174 Ratings
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Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Effectiveness

93% Positive

Form and Administration

92% Positive

Ingredients

93% Positive

Nutritional Value

90% Positive

77 Customer Reviews

Rated 2 out of 5 stars
By Jasmine on Jan 3, 2026

Eh

I used BB powder before when my ferrets had ECE and it seemed to help above anything else. Maybe it is problem-based but I have had no luck with it this time for

I used BB powder before when my ferrets had ECE and it seemed to help above anything else. Maybe it is problem-based but I have had no luck with it this time for either of my ferrets. The price is great. And maybe it helps with basic GI balance problems. I hate that the first ingredient is dextose. While minimal amounts are given, when it becomes a routine diet additive, sugar can be problematic. Perhaps it is needed for absorption of the ingredients but I am not sure.

Rated 5 out of 5 stars
By GEORGE on Jan 24, 2026

It worked for my cat

My cat started with loose stools in Oct, and it took 3 months, but now he’s back to normal. His issue was not urgent and he was still only pooping once a day, so

My cat started with loose stools in Oct, and it took 3 months, but now he’s back to normal. His issue was not urgent and he was still only pooping once a day, so 1/2 tsp twice a day mixed in his food did the trick.

Rated 5 out of 5 stars
By Jane on Dec 7, 2025

Effective

Use this for my 2 dogs and rescue kitty. Cat had loose stool with bad odor and this product helped digestion, stool became normal and foods no longer irritated her

Use this for my 2 dogs and rescue kitty. Cat had loose stool with bad odor and this product helped digestion, stool became normal and foods no longer irritated her gut. Also FYI everyone this is NOT FOR BIRDS (Avians) it is for mammals only. Benebac used to make a similar probiotic for avians but discontinued it. This is fantastic product for mammals but not birds. I wish Benebac would bring back the avian/ reptile probiotic, was also very good.

Rated 5 out of 5 stars
By Marisol on Jan 23, 2026

Perfect for a large herd of Guinea pigs

I have a lot of Guinea pigs and would go through the syringe paste way too fast. This powder makes more sense when you have a large herd of Guinea pigs.

I have a lot of Guinea pigs and would go through the syringe paste way too fast. This powder makes more sense when you have a large herd of Guinea pigs.

Rated 5 out of 5 stars
By Elaine on Nov 17, 2025

Great ProBiotic

I Foster Kittens for a non profit organization. With Fostering I want to be sure the kittens I foster are healthy when they get adopted. My new fosters are Curly,

I Foster Kittens for a non profit organization. With Fostering I want to be sure the kittens I foster are healthy when they get adopted. My new fosters are Curly, Larry and Moe.

Rated 3 out of 5 stars
By C on Dec 25, 2025

Dog ate her food with the product sprinkled over it

We saw no difference in her bowel movements, which was the primary reason for purchasing this product.

We saw no difference in her bowel movements, which was the primary reason for purchasing this product.

Rated 5 out of 5 stars
By Jennifer on Dec 9, 2025

helpful at controlling loose stools

I have bunnies that are prone to loose stools and this gets sprinkled on top of the pellets.

I have bunnies that are prone to loose stools and this gets sprinkled on top of the pellets.

Rated 5 out of 5 stars
By Helen on Jul 30, 2025

Stopped tummy upset for indoor diabetic cat!

My diabetic cat Nacho was having bouts of vomiting despite his BG being normal. He has IBS and takes Famotidine but these probiotics are wonderful in easing these

My diabetic cat Nacho was having bouts of vomiting despite his BG being normal. He has IBS and takes Famotidine but these probiotics are wonderful in easing these bouts of indigestion or irritable stomach. They have truly helped him. He’s on a low carb diet for his diabetes and loves his food but he often gulps his food leading to vomiting of food besides his IBS.

Rated 5 out of 5 stars
By Jo-Ann on Jan 25, 2026

This product really works.

We run a cat rescue and this product is a must have.

We run a cat rescue and this product is a must have.

Rated 5 out of 5 stars
By Vals on Jul 4, 2025

Works for soft stools

I usually buy the Benebac gel in the tube and it works great for a cat with diarrhea or soft stools. But, it gets expensive to use the tubes on my big dogs. This

I usually buy the Benebac gel in the tube and it works great for a cat with diarrhea or soft stools. But, it gets expensive to use the tubes on my big dogs. This works as good as the gel and easy to put in the dog’s food. A must have for those emergencies where the dirt and grass that my dogs eat upsets their digestive track.