Using Nutrition to Manage and Prevent Stomach Ulcers in Horses


Stomach ulcers are a common problem in horses, causing discomfort and potentially affecting their performance and overall well-being. While medication can help manage ulcers, nutrition is crucial in preventing and supporting treating these gastrointestinal issues in horses. In this article, we will explore various dietary strategies that can be employed to manage and avoid stomach ulcers in horses.

Understanding Stomach Ulcers in Horses

Before we delve into the nutritional aspects, it is essential to understand the causes and symptoms of stomach ulcers in horses. Stomach ulcers, also known as equine gastric ulcers, occur when the stomach’s protective lining erodes, exposing sensitive tissues to stomach acid. This erosion can happen due to various factors, including stress, high-starch diets, infrequent feeding, and intense exercise.

Common symptoms of stomach ulcers in horses include decreased appetite, weight loss, dull coat, decreased performance, behavioral changes, and sensitivity in the girth area.

Feeding Strategies for Stomach Ulcers

1. Provide Adequate Forage: One of the most crucial aspects of managing and preventing stomach ulcers in horses is ensuring a constant supply of high-quality forage. Horses continuously produce stomach acid; forage acts as a natural buffer, reducing acidity and preventing ulcers. Aim for at least 1.5% to 2% of a horse’s body weight in forage per day.

2. Frequent Feeding: Horses have evolved to graze and regularly eat small amounts of food. Mimicking this natural behavior by offering frequent small meals can help prevent the development of ulcers. Aim for at least three to four meals per day.

3. Reduce Grain/Starch Intake: High-starch diets can increase the risk of stomach ulcers. Limiting the intake of grains and other concentrated feeds can help reduce acid production and prevent ulcer formation. Could you ensure that most of the horse’s diet consists of forage?

4. Use Digestive Supplements: Certain digestive supplements, such as probiotics and prebiotics, can help maintain a healthy gut microbial population. A balanced gut flora can aid feed digestion and promote overall gut health, reducing the risk of ulcers.

5. Consider Alfalfa: Alfalfa hay or pellets can be beneficial to a horse’s diet when managing or preventing stomach ulcers. Alfalfa contains natural buffering properties that help neutralize stomach acid and relieve ulcer-prone horses.

Feeding Management for Horses with Stomach Ulcers

While implementing appropriate feeding strategies, it is also essential to consider specific management techniques for horses diagnosed with stomach ulcers. These additional measures can aid in the healing process and minimize discomfort:

1. Feed Before Exercise: Offering a small meal or allowing access to hay before exercise can help buffer stomach acid and reduce the potential for exercise-induced ulcers.

2. Provide Turnout and Social Interaction: Horses are social animals, and reduced turnout or isolation can contribute to stress and increase the risk of ulcers. Could you ensure horses have ample turnout time and opportunities for social interaction with other horses?

3. Consider Slow Feeding Methods: Slow feeding methods like hay nets or slow feeders can help mimic grazing behavior and promote a more natural feeding pattern. This approach can reduce stress levels and minimize the risk of ulcers.

Supplementing with Minerals and Nutrients

In addition to proper feeding strategies, specific minerals and nutrients can support the management and prevention of stomach ulcers in horses:

1. Vitamin E and Selenium: These antioxidants are crucial in maintaining a healthy digestive system. Adequate levels of vitamin E and selenium can support the healing of ulcers and reduce inflammation.

2. Omega-3 Fatty Acids: These essential fatty acids have anti-inflammatory properties and can help reduce inflammation in the stomach. Including a source of omega-3 fatty acids, such as flaxseed or fish oil, in the horse’s diet can be beneficial.

3. Zinc and Copper: These trace minerals are essential for maintaining a healthy gut lining. Adequate levels can support the healing process of existing ulcers and prevent the development of new ones.


Preventing and managing stomach ulcers in horses requires a comprehensive approach that includes proper nutrition, feeding strategies, and management techniques. By providing a constant supply of high-quality forage, reducing grain intake, and considering the use of supplements, horse owners can significantly reduce the risk of ulcers. Additionally, implementing feeding management techniques and evaluating slow feeding methods can aid in healing horses already diagnosed with ulcers. Remember to consult a veterinarian or equine nutritionist for personalized advice tailored to your horse’s needs.

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