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Equine Gut Health Supplement: 1 Natural Alternative to Omeprazole
Finding the right equine gut health supplement can be overwhelming, especially when you are trying to manage Equine Gastric Ulcer Syndrome (EGUS). If you have a performance horse, you have probably dealt with the stress of hauling, the physical demands of training, and the toll it takes on your horse’s stomach. In fact, research shows that up to 90% of active racehorses and nearly 70% of competition horses suffer from some form of gastric ulceration .
For decades, the veterinary and equine management standard has been straightforward: if a horse has ulcers, put them on a Proton Pump Inhibitor (PPI) like omeprazole. The mechanism makes sense on the surface—ulcers are aggravated by stomach acid, so if you stop the parietal cells from producing acid, the ulcers can heal.
But as equine nutritionists and horse owners, we have to ask the next logical question: What happens to a forage-eating animal when you turn off their stomach acid?
At NutriSana EQ, we are forage-first, always. We believe performance starts long before the alleyway, and it starts with how a horse digests their feed. Recent peer-reviewed research is shedding light on the hidden costs of acid suppression, which is exactly why we developed Axis, an advanced equine gut health supplement designed to protect the stomach without shutting down digestion.
Promoting Gut Health in Horses with NutriSana EQ
NutriSana EQ was built the way real horse programs are built: not in a boardroom, but in the barn. We started with a simple frustration. Too many products on the market claiming to be the ultimate equine gut health supplement are either under-dosed, over-hyped, or built like a mystery novel with proprietary blends that hide the true ingredient amounts.
Performance horses do not break down from one bad day. They get worn down from a thousand small misses: inconsistent nutrition, hidden inflammation, gut stress, and programs that look good on labels but do not hold up in real life. We knew there had to be a better way to support the horse from the inside out.
When it comes to gastric health, the stakes are incredibly high. A compromised gut leads to poor nutrient absorption, behavioral issues, weight loss, and a significant drop in performance. Choosing the right equine gut health supplement is not just about making the horse feel better today; it is about building sustainable performance season after season.
Promoting gut health in horses with NutriSana EQ,
The Problem with Altering Gastric pH
Horses are trickle feeders. They are designed to constantly graze, and therefore, their stomachs constantly produce acid. That acid isn’t a mistake of nature; it serves two critical purposes:
1.It initiates the breakdown of complex carbohydrates and proteins in forage.
2.It acts as a biological firewall, killing harmful bacteria and pathogens before they can reach the delicate microbiome of the hindgut.
When we use PPIs to raise the pH of the stomach (making it less acidic), we compromise both of these functions. A 2020 study highlighted that omeprazole administration significantly alters the microbiota of the gastric glandular mucosa in horses . In human and canine studies, these microbiome shifts can be profound, sometimes mirroring the bacterial profiles seen in severe gastrointestinal distress.
Furthermore, there is the issue of rebound hyperacidity. When the stomach’s pH is artificially raised by medication, the horse’s body recognizes the lack of acid and ramps up the production of a hormone called gastrin. Gastrin’s job is to tell the stomach to make more acid. While the horse is on the medication, the acid pumps are blocked, so nothing happens. But the moment you discontinue the omeprazole, those high gastrin levels cause the stomach to instantly flood with hydrochloric acid . This aggressive rebound often undoes the healing you just spent 30 days trying to achieve.
The Hidden Cost of Acid Suppression: Mineral Depletion
Beyond microbiome disruption and acid rebound, long-term use of acid-suppressing medications carries another significant risk for performance horses: mineral depletion.
A critical 2020 study conducted by Kentucky Equine Research evaluated the effects of omeprazole on calcium digestibility in thoroughbred horses. The researchers found that omeprazole had a profound effect, reducing apparent calcium digestibility by up to 20% .
For a performance horse undergoing rigorous training, calcium is essential not just for bone density and skeletal strength, but for proper muscle contraction and nerve function. When an owner reaches for a traditional ulcer medication instead of a natural equine gut health supplement, they may unknowingly be compromising the horse’s structural integrity. This is why a forage-first, natural approach to gut health is so vital for the long-term soundness of the equine athlete.
Squamous vs. Glandular Ulcers: Why the Difference Matters
To truly understand how an equine gut health supplement should work, we have to look at the anatomy of the horse’s stomach. The equine stomach is divided into two distinct regions: the squamous (upper) region and the glandular (lower) region.
The squamous region has no natural protection against stomach acid. In a natural grazing environment, a mat of chewed forage sits on top of the stomach fluid, preventing the acid from splashing up into the squamous region. However, when horses are exercised on an empty stomach, that acid splashes upward, causing Equine Squamous Gastric Disease (ESGD).
The glandular region, on the other hand, is where the acid is actually produced. It has a thick, protective mucosal layer designed to withstand a highly acidic environment. When ulcers form here—known as Equine Glandular Gastric Disease (EGGD)—it is usually not a problem of excess acid, but rather a breakdown of that protective mucosal barrier. This breakdown is often linked to physiological stress, intense training, and the use of Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) like phenylbutazone (bute) or flunixin meglumine (Banamine).
Because these two types of ulcers have different causes, they require different management strategies. While shutting down acid production might provide temporary relief for squamous ulcers, it does little to address the root cause of glandular ulcers. This is why an equine gut health supplement must focus on rebuilding and reinforcing the mucosal barrier throughout the entire gastrointestinal tract.
The Impact of NSAIDs on Equine Gut Health
It is no secret that performance horses often require NSAIDs to manage pain and inflammation from rigorous competition schedules. However, these medications come with a steep cost to the gastrointestinal system.
NSAIDs work by inhibiting cyclooxygenase (COX) enzymes, which are responsible for producing prostaglandins. While blocking prostaglandins reduces pain and inflammation in a sore joint, it also reduces the production of the protective mucus layer in the stomach and decreases mucosal blood flow. This leaves the stomach lining incredibly vulnerable to damage.
Many horses find themselves in a vicious cycle: they receive NSAIDs for soreness, which causes gastric ulcers, which leads to poor performance, which leads to more stress and more medication. Breaking this cycle requires a targeted equine gut health supplement that can provide the mucosal protection the horse is losing, without interfering with their natural digestive processes.
Why Your Horse Needs an Equine Gut Health Supplement That Maintains Acid
We knew there had to be a way to protect the mucosal lining of the stomach without shutting down the digestive fire.
In October 2025, researchers at Louisiana State University (LSU) published a groundbreaking study in Equine Veterinary Education. Led by Dr. Frank Andrews, the study evaluated stall-confined Thoroughbreds suffering from gastric ulcers. Instead of acid suppressants, the horses were given a targeted polysaccharide blend of Hyaluronan (HA) and Schizophyllan Beta-Glucan .
The results were exactly what the performance horse industry needed to see. The HA and Beta-Glucan protocol significantly lowered ulcer scores and healed lesions. But the most important finding? The gastric fluid pH was not altered.
The horses healed, gained weight, and maintained the acidic environment required to properly digest their hay. This proves that an effective equine gut health supplement does not need to suppress acid to do its job.
The Science of Hyaluronan (HA) in Gut Healing
Hyaluronan, or hyaluronic acid, is widely known for its benefits in joint health and skincare, but its role in gastrointestinal healing is equally profound.
During the inflammatory phase of healing, HA accumulates in the wound bed and acts as a master regulator of inflammation. Research has demonstrated that HA treatment accelerates intestinal mucosal healing by promoting epithelial regeneration . It essentially acts as a biological scaffolding, allowing new, healthy cells to migrate across the damaged stomach lining and repair the ulcerated tissue.
When included in a high-quality equine gut health supplement, HA provides a soothing, protective coating over the stomach lesions, offering immediate comfort while facilitating long-term tissue repair.
The Immune-Modulating Power of Beta-Glucan
The second half of this powerful equation is Schizophyllan Beta-Glucan. While HA provides the physical barrier and cellular scaffolding, Beta-Glucan works on an immunological level.
Beta-glucans are potent immunomodulators. When they enter the digestive tract, they interact with the immune cells located in the gut lining. This interaction helps to regulate the local immune response, reducing the chronic inflammation that prevents ulcers from healing. Furthermore, beta-glucans serve as a preferred food source for the beneficial bacteria in the horse’s hindgut, acting as a powerful prebiotic .
The combination of HA and Beta-Glucan creates a synergistic effect that addresses both the physical damage of the ulcer and the underlying inflammatory environment. This dual-action approach is what separates a truly functional equine gut health supplement from a simple antacid.
The Foundational Slovis Study
The LSU study built upon foundational research conducted in 2017 by Dr. Nathan Slovis at the Hagyard Equine Medical Institute. Dr. Slovis evaluated active adult horses with existing gastric ulcers over a 30-day period using the same polysaccharide blend of HA and Beta-Glucan .
The results were remarkable: 90% of the horses treated showed complete resolution and/or improvement in ulcerative areas. Furthermore, the horses exhibited increased appetite, weight gain, and positive behavioral changes. Dr. Slovis utilized a tiered dosing approach—a lower dose for maintenance and a higher dose for severe cases. This tiered philosophy aligns perfectly with how an equine gut health supplement should be utilized in the real world, adapting to the specific stress level and needs of the individual horse.
Introducing Axis: The Next Generation Equine Gut Health Supplement
At NutriSana EQ, we don’t build supplements in a boardroom; we build them for real horses dealing with real stress. We took the foundational science of the LSU and Hagyard studies and engineered it to fit our tiered strength philosophy.
But we didn’t stop at just including HA and Beta-Glucan. The challenge with feeding oral Hyaluronan is ensuring it survives the initial digestive process long enough to coat and protect the stomach and GI tract.
To solve this, Axis utilizes a proprietary chia seed mucilage encapsulation.
When chia seeds are exposed to liquid, they form a thick, gel-like mucilage. Research into food science and bioactive delivery systems shows that chia mucilage is incredibly resistant to degradation by stomach acid and digestive enzymes . By using a chia-based matrix to encapsulate the HA, we provide a natural, highly effective vehicle to deliver the active ingredients safely into the gut. This makes Axis a truly unique equine gut health supplement on the market.
How Chia Seed Encapsulation Changes the Game
The concept of encapsulation is critical when evaluating an equine gut health supplement. You can feed the most expensive, research-backed ingredients in the world, but if they are destroyed by stomach acid before they reach the target tissue, you are simply wasting your money.
Chia seed mucilage acts as a biological safe room for the Hyaluronan. As the supplement enters the highly acidic environment of the equine stomach, the chia matrix resists degradation, delaying gastric emptying and ensuring that the HA is released slowly and steadily across the mucosal lining. This sustained release mechanism means the protective barrier stays in place longer, providing extended comfort and healing time for the horse.
Furthermore, chia seeds themselves are an excellent source of omega-3 fatty acids, which have their own natural anti-inflammatory properties, adding yet another layer of support to this comprehensive equine gut health supplement.
Ideal Candidates for Axis
While every performance horse can benefit from proactive gastric support, certain profiles make an ideal candidate for a targeted equine gut health supplement like Axis:
•Horses with an active ulcer history: If your horse has previously been treated for EGUS or EGGD, Axis provides the necessary daily support to prevent recurrence without the negative side effects of long-term omeprazole use.
•Horses under high stress: Heavy hauling schedules, intense competition, and frequent changes in environment are massive triggers for gastric distress. Axis helps mitigate this stress by reinforcing the gut barrier.
•Horses on NSAIDs: If your horse requires phenylbutazone or flunixin meglumine for soundness, Axis can help protect the mucosal lining from the damaging effects of these medications.
•Horses recovering from GI disturbances: Whether bouncing back from colic, diarrhea, or a severe stress event, Axis provides the biological building blocks needed for tissue repair.
•Hard keepers: Horses that struggle to maintain weight often have underlying gut pain that prevents them from eating their full ration. By providing a soothing equine gut health supplement, you encourage better appetite and improved nutrient absorption.
Integrating Axis into a Forage-First Program
At NutriSana EQ, we always emphasize that no supplement can replace poor management. The foundation of any equine diet must be high-quality forage. An equine gut health supplement is designed to support and enhance a biologically appropriate feeding program, not act as a band-aid for bad practices.
To maximize the benefits of Axis, horse owners should ensure their horses have near-constant access to forage. Providing a flake of alfalfa hay prior to exercise is an excellent strategy, as the high calcium and protein content of alfalfa provides a natural buffering effect, while the physical mat of the hay prevents acid splash.
When you combine smart management practices with a scientifically advanced equine gut health supplement like Axis, you create an environment where the horse can truly thrive.
The Bottom Line on Gut Defense
“Just ride better” isn’t a recovery plan, and simply turning off your horse’s stomach acid isn’t a sustainable gut health plan. Your horse needs that acid to extract nutrients from their forage and keep their hindgut microbiome balanced.
With Axis, we are providing a multi-layered, science-backed equine gut health supplement that works with your horse’s biology, not against it. Because a stronger horse starts from the inside out.
By choosing a supplement that respects the natural physiology of the horse, you are investing in their long-term soundness, comfort, and competitive edge. It is time to move beyond the outdated model of acid suppression and embrace the future of equine gastrointestinal care.
Frequently Asked Questions (FAQ)
What is the best equine gut health supplement for horses with ulcers?
The best approach involves supporting the stomach lining without stopping acid production. Recent studies show that a combination of Hyaluronan (HA) and Schizophyllan Beta-Glucan can significantly lower gastric ulcer scores in horses without altering stomach pH, offering a natural alternative to acid-suppressing medications.
Why is stomach acid important for horses?
Horses are trickle feeders that constantly produce stomach acid. This acid is essential for breaking down complex carbohydrates in forage and acts as a biological firewall to kill harmful bacteria before they reach the hindgut.
Can an equine gut health supplement heal ulcers without changing stomach pH?
Yes. Peer-reviewed research from LSU demonstrated that feeding a specific blend of Hyaluronan and Beta-Glucan successfully healed gastric lesions and improved stomach health in horses without altering the natural pH of their gastric fluid.
How does chia seed mucilage help an equine gut health supplement work better?
Chia seed mucilage is highly resistant to stomach acid and digestive enzymes. When used to encapsulate active ingredients like Hyaluronan, it protects those ingredients, allowing them to safely reach and coat the targeted areas of the gastrointestinal tract for maximum healing.
Should I use an equine gut health supplement if my horse is on NSAIDs?
Yes. NSAIDs like bute can reduce the protective mucus layer in the stomach, leading to ulcers. A targeted gut health supplement can help rebuild and reinforce that mucosal barrier, protecting the stomach from medication-induced damage.
