Best Horse Digestive Aids of 2025

"I feed one scoop per mule daily, and it keeps their systems in check for any sand they might ingest while feeding. Good quality, no issues."

"Living in a sandy area with two horses, I decided to purchase the 20lbs bag. It's much cheaper this way!"

"After our horse colicked last winter, our vet recommended this supplement. We set up a monthly purchase, and the service is always timely and well-packaged. Highly recommend it!"

"I bought this product for my little highland bull who had chronic scours. In just a few days, his scours cleared up, and within two months, he transformed completely. However, when I stop the supplement, the scours return in two days. I really hope he’ll be okay this winter."

"As someone who has a picky gelding, I was pleasantly surprised that he enjoyed the taste of Formula 707. The price is fair, and I appreciate the easy-open, waterproof container. When I contacted customer service, I was impressed with their professionalism and quick response. They are truly committed to their product."

"Living in Arizona, my horses struggle with flies. Since incorporating this product, we’ve seen a significant drop in flies. It’s now a staple in their diet, and I recommend it to all horse owners. Plus, it’s more affordable here than at the local feed store!"

"This product makes my horse poop quickly. I love using it to avoid colic."

"I give this daily to my horse with a sensitive gut. Just 3 teaspoons in his morning feed, and he eats it right up. This tub lasts for months!"

"As a dog breeder, I've relied on this for years. I use it in powdered form to help wean my pups and keep adults stable during stress or diet changes. I'd rate it 5 stars if they hadn't tripled the price recently!"

"I found the price to be fantastic, especially since the quality is usually consistent."

"After my first order was lost, I contacted Prime, and they sent a replacement that arrived on time. I used it to sand clear horses, and I will definitely order again!"

"I have set this as an auto delivery because I consider it a must-have for every horse owner, and this is the best price I've found!"

"I had a mare with colic, and this product worked well and very quickly!"

"I’ve used this on two different mustang mares, and their condition improved within 15 minutes. My neighbor loves it too!"

"I didn’t want to write a review because I hoped I’d never have to use it. But when I did, it acted fast, and she pooped within 20 minutes. I’ll always keep this on hand now!"

"My mare has tried various stomach and GI supplements before, but I switched to this one as a more affordable option. After 6 weeks, she's eating it well and seems happy. Given her history of ulcers and colic, I believe it's really working for her!"

"I've been using GUT for years now. While I can't definitively say it helps with ulcers, I have noticed significant weight gain and improved nutrient absorption. Plus, it's much more affordable than Succeed and doesn't plateau."

"I have a mini pony that struggled with chronic diarrhea. After trying multiple solutions, I found GUT, which contains Saccharomyces Boulardii. By day two of adding it to his feed, his diarrhea was gone!"

"I have a horse prone to chronic colic, and this is the only product that keeps me from long nights of worry. All five of my horses love the flavor and eat this psyllium without hesitation. The monthly cleanse routine is a lifesaver, especially living in the sandy Sonoran desert!"

"This product has saved me from spending a $3,000 vet bill due to my horse's impaction colic. Since I started using it, I've had no issues at all. It’s been a lifesaver, curing my horse within just a couple of hours!"

"After using Sand Clear for years, I switched to this product. It's significantly cheaper and works just as effectively. My horse has had no colic issues since I started using it 1.5 years ago, and he eats the pellets without any fuss."

"A friend suggested this for my dog's weak stomach. I borrowed some to try, and wow, this product has no fillers, no sugar, and a more complete list of probiotics than any I've found. Although it's for horses, my dogs love it, and no more runny poop or vomit since using it. My dog had a weak stomach for a long time, but now she has firm poops and no vomit. I'm sticking with this!"

"My horse occasionally has loose stools with new Timothy hay. This product clears up the issues in just one day. I highly recommend it!"

"I've tried many pricey products for my horse's sensitive gut, but nothing is as effective as this. It stops fecal water syndrome quickly and completely. I ran out for three days, and the symptoms returned, but they went back to normal as soon as I resumed. It's miraculous and very palatable!"

"I give 2 scoops to my horse daily! It works great!!"

"I was recommended this by a dog breeder for my Golden. After trying other probiotics, including one from my vet, my dog finally loves this one! It effectively improved his stool consistency; in just the first 10 days, he only had one soft stool. He weighs 90 pounds, and a single scoop daily lasts about two months."

"My pony has severe allergies and even reacts to pasture grass! Alongside his allergy shots, he has been getting the pre/prebiotic powder twice daily, and he seeks it out eagerly every morning. It's so easy to incorporate into his feed."

"This stuff is amazing for my horse's belly aches. I use it with a syringe during stressful times, and the horses don't complain at all."

"I found this product to be a great buffer for my horse's GERD while riding. It provides temporary relief when needed."

"I was really hopeful about this product, but unfortunately, my horse wouldn't eat it. It's a constant struggle to give it orally, and I'm not sure if it's helping since she gets stressed not wanting to take it."