Feeding the Horse with Cushings Disease

When managing a horse with Cushings Disease, it is crucial to manage their diet. A Cushings horse is predisposed to laminitis and a compromised immune system. A proper feeding program can help reduce the chance of laminitis, and at the same time provide a diet that is high in antioxidants, such as selenium, vitamin E, and vitamin C, which aids the immune system. While some horses with Cushings require medication, most can be managed with nutrition and exercise.

Feeding a Cushings Horsehairy bay cushings horse

Since a Cushing horse is predisposed to laminitis it is very important to limit his NSC (non-structural carbohydrates) to 10-20% of his total diet. Hay and other fibrous feedstuffs should make up the majority of the horse's diet. The typical horse eats between 1% to 2% of his body weight in forage. So, the average 1,000-pound horse should be fed 15 to 20 pounds of hay per day. If your horse needs more energy to maintain a good body condition you should feed high-fat feeds or beet pulp. Avoid grains and feeds with molasses, which are high in NSC.

Choosing the Best Hay for Your Cushings Horse

When considering hay for your horse, it is important to recognize that some hays may contain high levels of NSC, depending on the species of grass and when and how it was harvested. In general, young plants are higher in sugar, whereas mid-bloom to mature grasses tend to be lower in sugar. Very mature plants typically have large amounts of indigestible fiber which can be hard for older horses with dentition problems to chew. Grass hays average between 7 and 18% NSC. Warm-season grasses, such as teff hay or Bermuda grass, tend to be lower in NSC. While cool-season grasses, such as orchard grass or timothy, are typically higher in NSC. Alfalfa averages 10-15% NSC, and oat hay is very high, averaging 22%. Alfalfa can be a good option for a horse with Cushings if they are a hard time holding their weight because it is more calorie-dense than grass hay. However, if your horse with Cushings is on the heavier side, it is best to steer away from alfalfa hay because of the excess protein can be converted into sugar in the liver.

cushing horse noseIf your Horse Needs More Calories than Just Hay

Some Cushings horses are more prone to being overweight, while others have a hard time holding a good body condition. If more calories are needed to maintain body condition, add feeds that are high in fat, such as flaxseed oil or extruded soybeans. Fat is very energy-dense while providing little easily digestible starch which raises insulin levels in a Cushings horse.

Providing Supplements to Optimize Immune Function

Cushings horses have suppressed immune systems and therefore are prone to reoccurring infections. So, it is very important to supplement them with a complete vitamin-mineral supplement that provides them with antioxidants. Antioxidants, such as selenium, vitamins E, C and A help combat attacks on the body. Feeding a supplement like Horse Guard, which is only fed at 2 ounces a day provides the body the needed vitamins and minerals while adding very little to the overall NSC levels of the diet. For the horse with Cushings that has a hard time maintaining weight consider supplementing with Super Weight Gain. Super Weight Gain contains a full dose of Horse Guard to help combat disease, a great prebiotic and probiotic package that helps your horse to get more out of his feed, and the base of cool energy from extruded soybeans to provide your horse energy from protein and fat. Supplementing with 100% flaxseed oil, such as FLOW, can also help your Cushings horse by reducing the insulin spikes in the bloodstream. By lowering these spikes, it helps reduce the chances of laminitis developing. Flaxseed oil also helps to reduce unwanted inflammation.


Overall nutritional plan for Your Cushings Horse

The goal is to build a diet for your horse that is low in NSC. Choose hay that best suits your horse's needs. For a horse that has a hard time maintaining weight, feed a warm-season grass/alfalfa hay mix. A heavier horse will do better on a warm-season grass hay. Choose a great vitamin-mineral supplement, like Horse Guard, that will provide them with crucial antioxidants to optimize immunity without adding a lot of NSC to the overall diet. Provide your horse an Omega-3 fatty acid supplement, like Flaxen Flow, to help with inflammation and insulin control. For the horse that won't maintain body condition on hay and a complete vitamin-mineral supplement and omega-3 supplementation alone, add concentrates that are high in fat and low in starch, such as extruded soybeans or oil, like Flaxen Glow or Flaxen Flow. While some Cushings horses need medication, many can be managed with diet alone. Be sure to consult your veterinarian when developing the best overall health program for your horse and determine if medication is necessary. Following these steps will help you to decrease the chances of your Cushings horse developing laminitis and assure your horse lives the most comfortable life possible.
Dr. Kelsey J. Nonella Ph.D., P.A.S.

Dr. Kelsey J. Nonella Ph.D., P.A.S.

2 Responses

Dr. Kelsey Nonella

Dr. Kelsey Nonella

March 05, 2021


Thank you for the question. Yes, Super Weight Gain is safe for cushings and IR horses. It is high in fat and protein and low in starch which works great for horses with these conditions.

Let me know if I can answer anymore questions.

Dr. Kelsey Nonella

Debbie Bailey

Debbie Bailey

February 24, 2021

My arabian mare has cushings and insulin resistantance.
She needs to add weight.
Can she have Horse Guard
Super Weight Gain Equine Supplement safely?

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