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SmartGut® Ultra Pellets

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Product Overview

Which horses benefit from comprehensive gastric support?

Your horse was designed to consume small amounts of forage throughout the day, so his stomach produces acid 24/7. In a natural grazing situation, where a horse is chewing and swallowing consistently, his gastric acid is buffered by forage and saliva. This buffering action helps keep excess acidity from damaging the sensitive stomach lining. Unfortunately, many common elements of modern horse keeping – such as training, travel, increased stall time, and feeding practices, like large grain meals – are often at odds with how horses were designed to live and eat, which can lead to gastric upset. A stressed stomach can negatively impact your horse’s health, attitude, and performance, which is why providing a selection of ingredients that support gastric health is a smart way to help him look and feel his best.  

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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

Supercharge Your Supplements

  • SmartGut Ultra backed by Clinical Research
    Did you know that over 60% of performance horses experience occasional gastric stress? The good news is there is a now a gastric health supplement that is clinically shown to work. In fact, in a university-led research study, SmartGut Ultra was shown to maintain stomach health in horses under stress, as well as those given GastroGuard for gastric issues. Don't wait! Get your horse the ultimate in gastric support, SmartGut Ultra. Go to to learn more.
  • Simplify with SmartPaks | Consistent, Custom, Convenient
    Simplify your life with SmartPaks: custom-made, pre-measured daily doses of your horse's supplements.


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.

SmartGut® Ultra Pellets is rated 4.6 out of 5 by 274.
Rated 5 out of 5 by from SmartGut® Ultra Pellets works great I started our young horse on SmartGut® Ultra Pellets to protect his gut while starting his training. I notice he stays calm and seems more focused. I love this supplement and will keep him on it forever. I think gut issues happen a lot in horses that act up and owners don't realize it. I highly recommend this product!
Date published: 2021-04-03
Rated 5 out of 5 by from Works! My 4yo ottb was scoped by my vet and diagnosed with grade 1 ulcers after suddenly becoming quite difficult (and that's putting it nicely) in training and just being grumpy in general which is not typical for his personality. I treated with omeprazole and stated him in one Smartgut Ultra. Wow! He's now so comfortable, willing, and back to his sweet self!! I always want to make sure all my horses have the support they need and Smartpaks is where I turn for effective supplements.
Date published: 2021-02-21
Rated 5 out of 5 by from Does what it says it's supposed to do My very pron ulcer barrel horse has been on these for about a month now. I see a huge difference with her. I'll know even more once she goes back to full competition. As of right now they do what it says it's supposed to do... protect the lining of the stomach from creating ulcers. She seems so happy and energetic, so I feel they are doing the job. I'm also an equine vet tech and all the vets I work with (5) recommend this product to help protect.
Date published: 2021-02-20
Rated 1 out of 5 by from Didn’t work I’ve been using for 2 months and my gelding has another bout of colic. I don’t feel it worked at all.
Date published: 2021-01-18
Rated 5 out of 5 by from Passed the taste test!! My horse is happy to eat the Ultra pellets! And his tummy is happy!
Date published: 2021-01-11
Rated 5 out of 5 by from Miracle worker for suspected ulcers I have a 5 y/o dressage horse and noticed he was increasingly girthy and irritable after moving him across the US and living through the PNW wildfires, including evacuation from his farm! I was 100% sure this induced ulcers so I put him on this for a month and after 2 weeks he was back to his plucky self. He eats anything in front of him (including hoof picks, gloves, plastic, etc) so I can't say much on palatability, but this was 100% worth the money.
Date published: 2020-12-30
Rated 5 out of 5 by from Great product! Starting using it for my mini for diarrhea. Tried a bunch of different stuff my vet suggested but nothing worked until this...
Date published: 2020-12-23
Rated 5 out of 5 by from Helps Keep stomachs happy I started my gelding in this as he was being treated for ulcers. He eats it with no issues and it seems to be working by keeping his stomach happy!
Date published: 2020-11-20
Rated 5 out of 5 by from Makes my best friend feel herself again I've had a ulcer so I know how it feels to feel bad when the acid in my stomach gets angry if dinner is 2 hours late. Savanna worries about food and sometimes the small things she shouldn't worry about anymore. I've got her back now. Life will always be good. I hope Smartgut Ultra would let her belly calm down and eventually over time maybe switch to the regular Smartgut. She loves her special pellets of Smartgut Ultra. A Smartpak customer service person called and left a awesome voicemail today. She wanted to make sure the Smartpaks were going good for Savanna and to let us know we can call anytime with help. She even closed the call with she sends her love to Savanna. Thank you all so much!
Date published: 2020-10-26
Rated 5 out of 5 by from Definately works ! Been using foe a month now ans my horses chronic diarrhea has disappeared!
Date published: 2020-10-22
Rated 3 out of 5 by from Too early to evaluate effectiveness Convenient to use. Too early to measure effectiveness.
Date published: 2020-09-18
Rated 5 out of 5 by from My horse eats it and his ulcer symptoms are gone. My horse had an ulcer and was treated with success. I added SmartGut Ultra to his treatment and now as a maintenance. He looks great and is holding his weight. My horse eats it out of my hand with a little grain mixed in.
Date published: 2020-09-07
Rated 5 out of 5 by from Finally! My horse was scoped and found to have both squamous and glandular ulcers. Many thousands of dollars in medications plus 2 more scopes and his ulcers are almost gone but not totally. I do not use supplements that have no solid research behind them. Finally, a product that has some research and that helps prevent ulcers. We haul to many states to trail ride; I truly feel this supplement has helped with my horse's gastric issues. So far, so good. Thanks.
Date published: 2020-09-06
Rated 5 out of 5 by from Love this product! My horse has been on this for two months and I am loving the difference it has made! He also loves eating it!
Date published: 2020-08-20
Rated 5 out of 5 by from So far, so good My OTTB mare suffered from terrible ulcers. After a month of her Rx, I started using SmartGut Ultra for maintenance. She has continued to have a happy tummy!!
Date published: 2020-07-13
Rated 5 out of 5 by from my happy horse seems this horse is more comfy thank you..we will be using all the time
Date published: 2020-06-26
Rated 5 out of 5 by from This product really seems to have worked! I called when I found out my horse had gastric ulcers. The prescription meds were going to be cost prohibitive for extended use. So I used the prescription meds for 5 days and then added this supplement. After about 1 month, most of her symptoms are gone and she is much more comfortable. One disappointing issue is that the same mare has been on Smartflex senior for a few years and the representative did not mention the devils claw in that. She even asked me if I wanted to add this new supplement to my next order of smartflex. My vet has instructed me to stop that immediately and advised me that it may be what caused the ulcers. I wish I had thought of that earlier, but this mare is very quiet and is basically retired and on pasture, so I didn’t think she would ever be at risk for ulcers.
Date published: 2020-06-23
Rated 5 out of 5 by from All around 5 stars My gelding feels better with this supplement. I’m giving liquid aloe and just saw aloe comes in smart packs as well. I’ll be trying those soon. Customer service , expedient shipping all equal 5 stars.
Date published: 2020-06-09
Rated 3 out of 5 by from Worked okay I only had my horse on this supplement for a month and I think it worked okay. But it's so expensive and to not see any drastic or immediate changes is discouraging.
Date published: 2020-04-30
Rated 4 out of 5 by from Seems to help Helped my horse be less stomach sensitive. Has a lot of good ingredients and has best results for an ulcer supplement I’ve seen.
Date published: 2020-04-10
Rated 5 out of 5 by from Good GI Protection After purchasing my horse last year we noticed that he likely had ulcers. He wasn't eating all his hay and was sensitive when tightening his girth and brushing his belly. After a treatment course of ranitidine, I started him on SmartGut Ultra. It's been a year now and he hasn't had any signs of reoccurring ulcers. No this product won't treat ulcers, but it sure seems to be doing a good job of preventing new ones. For reference I am a clinical pharmacist. I like the calcium and magnesium carbonate as well as having lactobacillus in one product. The pelleted formulation helps with palatability.
Date published: 2020-02-05
Rated 1 out of 5 by from No Difference I bought this product because of its reviews & I’ve always had good success with SmartSupplements. Unfortunately my gelding has been on this for almost a month & it appears to not be working.
Date published: 2020-01-01
Rated 5 out of 5 by from Clinically proven to work My general vet and an internist both highly recommended this product for my older Arabian after he recovered from a death- threatening illness and ulcers.It works very well and he looks and feels fabulous. When we had to evacuate to flee fires at two different places in 24 hours I put my other two horses on this product also (simultaneously with three days of gastrogard) and they sailed through the ordeal. All are on Smartgut Ultra still to be safe.
Date published: 2019-12-19
Rated 5 out of 5 by from Great results in just a few days!! My gelding has been prone to ulcers ever since I got him 2 years ago. I've been able to keep control over them with another gastric supplement for about a year but recently, it started to loose its affect. He started getting cinchy, would hump up every time I got on him (even bucked as soon as I got in the saddle sometimes), and his performance was starting to decline. He was also very nervous in his stall and while being handled. With the advise of my vet, we put him on straight alfalfa, different grain, and recommended that I try this supplement out to help maintain his stomach health. He's been getting this for about a week and I have my easy going, level headed horse back! He's relaxed, happy, and all of his symptoms have dissolved! However, I will be adding SmartGI Ultra to his SmartPaks instead so I can save money on his gut and digestive health! I'm so glad Sully is back to himself, we can't thank you enough SmartPak!
Date published: 2019-09-05
Rated 5 out of 5 by from A great supporter of gastric health Treating gastric issues is something no horse owner wants to deal with. I recently ran into this problem with one of my horses, he became incredibly bitter and touchy about his girth, he was clearly in pain, and he's a chronic cribber so that did not help matters. After going through the vet-recommended treatment, my vet directed me to put him on a gastric support supplement to help avoid any future issues. I decided on SmartGut Ultra. Since being on this supplement, his gastric health has been phenomenal. No more irritation, and although the cribbing hasn't stopped - the issues and behavior have no recurred. I can rest easy knowing that my gelding is getting the best support so he doesn't have to go through that gastric upset again.
Date published: 2019-07-12
Rated 2 out of 5 by from Didn't get good results Unfortunately, this product did not resolve the problem my horse has with loose manure
Date published: 2019-05-24
Rated 5 out of 5 by from Works! I had my horse on this product for two weeks and I see a huge difference in his behavior!
Date published: 2019-05-23
Rated 2 out of 5 by from Ineffective I put my horse on this before beginning the weaning process from Nexium. After doing a prolonged weaning from Nexium and acheiving full therapeutic benefit of this supplement his ulcer symptoms returned. After being on this product my horse was scoped and was found to have keratinization over large areas as well as a few inflammed spots. This did not prevent preulcers nor did it maintain the benefit that Nexium provided. Nexium eliminated my horse's ulcer symptoms, and this supplement did nothing to maintain it. My vet recommended Platinum Performance Gastric Support instead.
Date published: 2019-05-14
Rated 5 out of 5 by from Saw a difference right away My new boy is anxious and never stops pacing. We believe he has ulcers. Adding this to his diet has helped immediately. He is more settled
Date published: 2018-11-02
Rated 2 out of 5 by from I'm on the 2nd month of the SmartGut and I have not seen any change in my horse yet. I'm going to give it one more month and if I still don't see any improvement I will cancel my order.
Date published: 2018-09-27
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