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Probios® Powder

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Feeding Chart

Daily Serving

Feeding Chart
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Inactive Dog - Less than 30 minutes of vigorous exercise daily
Active Dog - At least 30 minutes of vigorous exercise daily
Working Dog - More than two hours of vigorous exercise daily
This is only a guide. Please consult your veterinarian to determine the perfect feeding amount for your dog.
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Product Overview

Economical Probiotic Formula

Probios Powder is a probiotic supplement for horses and dogs that contains guaranteed levels of Lactobacillus plantarum, Enterococcus faecium, Lactobacillus casei, and Lactobacillus acidophilus. Probios is the world's most widely recognized, researched, and used brand of DFM (direct-fed microbial). When fed with a balanced diet, Probios Powder may aid in supporting a healthy gut during deworming, travel, antibiotic therapy, and showing. 

Ideal for use during:

  • Trailering and traveling
  • At shows and competitions
  • During changes in environment
  • During changes in weather

Manufactured in the USA. All Probios® products are manufactured in an SQF Level 3 Edition 7.2 certified facility.

What are Probiotics?

  • Lactobacillus plantarum, Enterococcus faecium, Lactobacillus casei & Lactobacillus acidophilus
  • The world's most widely recognized, researched & used brand of DFM (direct-fed microbial)

Learn More

Key Ingredients


Supplement Facts

Ingredient Name Amount Per Serving
Ingredient Name Amount Per Pound

Ingredient Details


Weight Recommended Amount Loading Amount

How the Ingredients Work


Supporting Success

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The reviews provided on this website represent the experience of the individual posting the review. We do not adopt, edit, or endorse any of the submissions posted within the reviews section. Rather, the reviews are part of an online community of animal owners that desire to share their particular experience with other individuals. These reviews are not a substitute for discussing the health of your animal with a veterinarian.

SmartPak customers are some of the most conscientious animal owners around. We encourage you to share your experience with the products we sell to help fellow customers to make informed choices for their animals. We do not edit these reviews in any way - they are direct customer-to-customer communication. We do monitor reviews for positive and negative feedback, and use this feedback to improve our selection as well as sharing feedback with product manufacturers to help them improve their products. Please note that we recommend consulting your vet with serious health issues.

Probios® Powder is rated 4.8 out of 5 by 270.
Rated 5 out of 5 by from Must have in my feed room! Probios® Powder is a staple supplement that I keep around my barn at all times. I use this product any time my horses are traveling, working hard, or during times of added stress. My vet also recommends I add this product to my horse's diet whenever I am using antibiotics. I am convinced that the guaranteed levels of probiotics in this formula help support gut health. Best of all, the volume of powder in each serving is relatively small and seems to be very palatable. Probios® Powder is a must in my barn!
Date published: 2023-03-09
Rated 5 out of 5 by from Worked like a charm in one day! Got a new 8 yr old miniature stallion, he was stressed and running all over calling my miniature mare, he had the runs from his travel over here and a new home. I gave him 3/4 of the little scooper the container comes with, with his feed and the next morning I saw solid poop on the ground no more runny poop. I this product for my miniature horses. I have used this in the past and will always use it coz it works!
Date published: 2022-12-17
Rated 5 out of 5 by from Really works I started feeding the treats last year and decided to start using the powder with our other SmartPaks in the morning and give a treat in evening because Toby picks them out to eat. He hasn’t had a belly ache since using Probios
Date published: 2022-12-06
Rated 5 out of 5 by from So far, so good! I started my mare and foal on Probios to help support them through the weaning process, and continue use it as my foal transitions. I love a good guy support!
Date published: 2022-08-20
Rated 5 out of 5 by from Great product and cost effective! Love this product, it works, it doesn't cost an arm and a leg and the small dosage is great for picky eaters. I using this in general and when why pocket book is hurting and cant afford the expensive stuff for my needy older horse it does the trick. If it was for ulcers he would just be on this. Must have in the feed room.
Date published: 2022-01-19
Rated 5 out of 5 by from seems to help regulate my older grey TB My horse has been on probiotics before . And I recently put him on Probios and it seems to have helped his loose stool to be more formed and he is eating well.
Date published: 2021-07-07
Rated 5 out of 5 by from Solving a gut problem Got this just to see if it might help an older horse with ongoing Fecal Water Syndrome--pretty much a Hail Mary, nothing else had helped! But while the problem is not completely gone, it is hugely improved, and the horse is much more comfortable. Has to be the Probios--nothing else has changed.
Date published: 2021-05-15
Rated 5 out of 5 by from Probios Used for our horses and goats...this is good stuff!
Date published: 2021-05-07
Rated 5 out of 5 by from Great for Tummies My horse rescue had gained most of his weight back over the past couple of months, but I noticed he would be a little girthy or funny about his tummy area. Due to not knowing his medical history, I decided that this powder would be a good supplement to help his stomach get back on track. It's helped a lot these past couple of months!
Date published: 2021-05-04
Rated 5 out of 5 by from Great My horse gets diarrhea when the weather fluctuates a lot (like it has for the past 4 months), so I use this on him. It helps him be a lot more comfortable and I notice an improvement after only two doses. He eats it fine, but he eats absolutely anything so I can't attest to palatability for picky eaters.
Date published: 2021-03-20
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