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SmartGut® Ultra Pellets

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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
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Only SmartPaks on AutoShip make you eligible to apply for the FREE ColiCare Program. Colicare is a free program that provides up to $15,000 in colic surgery reimbursement
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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 Great Product! I’ve been ordering these supplements for the last two months and I’m nothing but happy with this product and how it’s helped my horse! He had a severe case of ulcers and after I got rid of them I immediately put him on the smart gut supplements. However, they just weren’t doing a well enough job in my opinion, so I ordered these, and the price is definitely worth the difference. My horse seems more forward, less sensitive, and his poops are now solid. Best product!
Date published: 2023-10-27
Rated 5 out of 5 by from Great product, my horse is actually gaining weight
Date published: 2023-03-23
Rated 5 out of 5 by from Working great to prevent ulcers My mini horse is prone to colics caused by ulcers. Prior to this, he was having multiple episodes per year and needing prescription medication. He’s an extremely picky eater so getting him to eat any supplements is a challenge. He LOVES his daily “treat” of SmartGut Ultra. Because of his size, he only gets a little but he will hunt down any pellets that get dropped. He has been on it for 6 months with zero colic issues, which is a record for him.
Date published: 2022-12-24
Rated 5 out of 5 by from Big Improvement I got this at the recommendation of my vet for my OTTB. She is much more comfortable and relaxed. Highly recommend.
Date published: 2022-03-22
Rated 5 out of 5 by from Ulcers show already in healing! This was my very first time buying smartpaks, and I had bought this product for my OTTB as we suspected he had some Gastric Ulcers, and I wanted to give him as much relief as possible before his Scoping. About a week into feeding the supplement I had certainly noticed major changes in his behavior, less nippy, and he had dropped his cribbing habit, those results were certainly enough to convince me. The time to scope him came around and we were extremely shocked to find that the Ulcers were already in the healing process, our vets only explanation is SmartGut Ultra, a good diet, and lots of pasture. Thanks to SmartPak my boy is looking to make a much faster recovery, with Ulcer Guard and SmartGut Ultra, we will most certainly be keeping him on SmartGut Ultra for a very long time!
Date published: 2021-12-04
Rated 5 out of 5 by from I got my horse back! I have had my horse on this for 28 days and what a difference. I would encourage you to listen to your horse and when something changes, look for the reason. I suspected ulcers when my lazy and "all whoa, barely any go" horse suddenly did NOT want to even walk forward. I took the saddle off. I asked people to see if he was lame. It didn't matter how animated I was with kicking or my dressage whip, he did not want to move forward. I had to have someone chase me around with a lunge whip to get him going. This happened 2 days in a row and I knew something was wrong. He also became spooky when a bought him ( a few months prior to suspecting ulcers) and he really didn't go back to the quiet, laid back and calm horse I bought. Most everyone at my barn blamed his attitude for the issues and thankfully, I didn't listen to them. They basically said that he didn't have enough symptoms to have ulcers and I said that I didn't want to wait until he was bucking and rearing at girthing before I did something about it. I researched and decided on smartgut Ultra and put him on ulcer guard for a week while I waited for the supplement to arrive. He also got a week off because I knew he was hurting. 10 days later, I had a different horse. A month later and my horse hasn't spooked in the last 2 weeks (he's had plenty of reasons, too!). He's not irritated. He's willing. He's willing to trot and walk when asked. Sometimes horses are subtle and if you suspect something has changed, trust your gut! This supplement is fantastic and I will be keeping him on it. I also give him Purina Outlast treats a few days a week as well. I believe that works by making their stomachs less acidic.
Date published: 2021-10-22
Rated 4 out of 5 by from Great featured Upon recommendation of my trainer, my mare is on her second month of this product. Based on the excellent assistance of a SmartPak representative, review of the product and my trainer's endorsement; hopefully it will be another of my mare's supplementsls.
Date published: 2021-09-16
Rated 5 out of 5 by from Veterinarian recommended My horse is doing well on SmartGut Ultra pellets. My Veterinarians had recommended this product after diagnosis of ulcers. After our initial medication treatments, SmartGut Ultra has helped my horse feel his best. I am happy with SmartPak products.
Date published: 2021-09-09
Rated 5 out of 5 by from Great support for my ulcer prone horse I had my mare on SmartGut for prevention after she had some pyloric ulcers a year and a half ago. She still gets ulcery with changes such as the new arena being put in (trucks coming and going next to the paddocks), herd changes, etc. I wanted to see if switching to SmartGut Ultra would improve her tummy issues. She has been so much more relaxed with the switch. The trucks have been coming and going again, bringing new footing in and she doesn't even look. Part of her herd left for a show and it's not a big deal this time. She still has the same energy and curiosity, just not the typical signs of an upset GI that she normally might get with these changes.
Date published: 2021-07-18
Rated 5 out of 5 by from Happy Mare! My mare has always been a little nervous. We have been showing ARHA quite a bit this past two summers and she was showing beginning signs of gastric distress. (Not eating well at home and on the road, grouchy, etc.) This product has helped her tummy chill out, she is eating great at home and on the road, and back to her wonderful sweet self. Thanks SP for making a easy to use, effective, and palatable product!
Date published: 2021-07-03
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