Feeding Horses with Cushing’s Disease

Caring for a horse with Cushing’s disease often requires owners to think more carefully about nutrition, weight management, and overall metabolic health.

Many horses with Cushing’s disease, also known as PPID, continue living active and comfortable lives with thoughtful management. Forage selection frequently becomes one of the most important components of that long-term care.

Because every horse responds differently, individualized feeding programs are essential.

Understanding Cushing’s Disease

Pituitary Pars Intermedia Dysfunction, commonly abbreviated PPID, is a hormonal condition most commonly seen in older horses.

Affected horses may experience:

• changes in metabolism,

• altered body condition,

• muscle loss,

• abnormal hair coats,

• increased drinking and urination,

• and increased laminitis risk.

Not every horse shows identical symptoms.

Some horses primarily struggle with weight management, while others remain relatively stable for years with careful monitoring.

Why Forage Matters

Hay represents the largest portion of most horses’ diets.

For horses with PPID, forage quality can influence:

• calorie intake,

• digestive health,

• metabolic stability,

• and body condition management.

Many owners focus on selecting:

• consistent forage,

• moderate calorie density,

• clean hay,

• and appropriate sugar levels.

Because some horses with PPID are more metabolically sensitive, NSC management may become important.

Understanding NSC

NSC stands for non-structural carbohydrates, which primarily include sugars and starches.

Some horses with PPID also experience insulin dysregulation, making them more sensitive to elevated sugar intake.

This is why owners often seek forage with moderate or lower NSC levels.

However, nutritional needs still vary significantly between horses.

Some horses maintain weight easily and require calorie control.

Others struggle to hold body condition and may require more digestible forage.

Weight Management Challenges

PPID horses can sometimes become difficult to manage nutritionally because they may experience either:

• unwanted weight gain,

• or gradual muscle and condition loss.

This makes individualized feeding especially important.

Owners often benefit from monitoring:

• body condition,

• topline changes,

• appetite,

• and seasonal fluctuations.

Regular evaluation allows feeding programs to adjust gradually rather than react after significant condition changes occur.

Digestibility Matters for Older Horses

Many horses with PPID are seniors.

As horses age, chewing efficiency and digestive function may gradually decline.

Softer, more digestible forage may become helpful for:

• horses with dental wear,

• reduced appetite,

• or difficulty maintaining weight.

At the same time, excessively rich forage may complicate metabolic management in easy keepers.

Balance becomes extremely important.

Consistency Supports Stability

Frequent forage changes can make metabolic management more difficult.

Consistent hay quality allows owners to:

• monitor weight trends more accurately,

• maintain stable feeding routines,

• and reduce digestive disruption.

Gradual transitions are generally preferred whenever forage changes become necessary.

Many horses with PPID benefit from predictable feeding schedules and steady nutritional programs.

Clean Forage Is Important

Respiratory sensitivity and immune challenges may increase as horses age.

Dusty or moldy hay may contribute to:

• coughing,

• respiratory irritation,

• or reduced forage intake.

Clean, properly stored forage supports both palatability and overall health.

Feeding the Individual Horse

No single hay works perfectly for every horse with PPID.

Factors influencing forage selection include:

• insulin sensitivity,

• age,

• body condition,

• dental health,

• workload,

• and digestive function.

Thoughtful forage management helps owners create more stable, sustainable feeding programs over time.

The best feeding plans are rarely the most extreme.

They are usually the most consistent and individualized.

FAQ

What is PPID in horses?

PPID, commonly called Cushing’s disease, is a hormonal disorder most often affecting older horses.

Should horses with PPID eat low-sugar hay?

Some horses with PPID benefit from careful NSC management, especially if insulin dysregulation is present.

Why do older horses need softer hay?

Dental wear and reduced chewing efficiency may make softer forage easier to consume.

Does forage consistency matter for PPID horses?

Yes. Stable feeding programs often make body condition and digestive management easier.

Is Soaking Hay Helpful for Metabolic Horses?

Many owners of metabolic horses eventually hear about soaking hay as a strategy for reducing sugar intake.

For some horses, soaking forage may help lower certain water-soluble carbohydrates. However, soaking is not a perfect solution, and understanding both its benefits and limitations is important.

Like most aspects of forage management, the best approach depends on the individual horse.

Why Owners Soak Hay

Metabolic horses often require careful management of non-structural carbohydrates, commonly called NSC.

NSC includes sugars and starches that may influence:

• insulin response,

• weight management,

• and laminitis risk in susceptible horses.

Some sugars within hay are water-soluble.

When hay is soaked, a portion of those sugars may leach into the water.

This has led many owners to use soaking as part of metabolic feeding programs.

Results Can Vary Considerably

One important thing owners should understand is that soaking does not produce identical results every time.

The amount of sugar reduction depends on:

• hay type,

• forage maturity,

• soaking duration,

• water temperature,

• and starting sugar levels.

Some hays may experience meaningful sugar reduction, while others change less dramatically.

Because of this variability, soaking should not replace careful forage selection whenever possible.

Soaking Also Removes Other Nutrients

Soaking affects more than just sugars.

Water may also remove:

• minerals,

• electrolytes,

• and some soluble nutrients.

For some horses, this may not create major concerns.

For others, especially performance horses or animals with additional nutritional needs, supplementation adjustments may become necessary.

This is one reason veterinary and nutritional guidance can be valuable when feeding medically sensitive horses.

Hygiene and Storage Matter

Wet hay spoils more quickly than dry forage.

Especially during warm weather, soaked hay should not sit for extended periods before feeding.

Owners should also clean soaking containers regularly to reduce:

• mold growth,

• bacterial contamination,

• and unpleasant odors.

Proper handling remains important for maintaining forage quality.

Soaking Does Not Fix Poor Hay

Some owners attempt to compensate for low-quality forage by soaking it.

However, soaking cannot correct issues such as:

• mold,

• dust contamination,

• excessive maturity,

• or poor digestibility.

Forage quality still matters tremendously.

The best feeding programs typically begin with clean, consistent hay appropriate for the individual horse.

Digestive and Behavioral Considerations

Some horses readily accept soaked hay.

Others strongly dislike the texture change.

Palatability matters because horses still require adequate fiber intake for:

• digestive health,

• hindgut function,

• and chewing behavior.

If horses refuse soaked forage, owners may need to explore alternative forage strategies.

Consistency Still Matters Most

For many metabolic horses, consistent forage management remains more important than any single feeding technique.

Helpful practices often include:

• stable feeding routines,

• gradual forage transitions,

• controlled portion sizes,

• body condition monitoring,

• and selecting appropriate hay.

Soaking may serve as one useful tool within a broader nutritional management plan.

Individualized Feeding Is Key

Some horses benefit significantly from soaked hay.

Others maintain excellent metabolic stability through careful forage selection alone.

The best approach depends on:

• metabolic sensitivity,

• body condition,

• workload,

• digestive health,

• and overall management.

No single feeding strategy works universally for every horse.

Thoughtful, individualized forage programs generally provide the most sustainable long-term results.

FAQ

Does soaking hay reduce sugar?

Soaking may reduce some water-soluble carbohydrates, though results vary.

How long should hay be soaked?

Soaking practices vary considerably depending on management goals and veterinary recommendations.

Can soaked hay spoil?

Yes. Wet hay can spoil quickly, especially in warm weather.

Does soaking improve poor-quality hay?

No. Soaking cannot fix mold, excessive dust, or poor digestibility.

Common Feeding Mistakes with Laminitic Horses

Managing a horse with laminitis can feel overwhelming, especially for owners trying to balance nutrition, weight control, digestive health, and overall comfort at the same time.

Many owners work incredibly hard to help their horses recover, yet small feeding mistakes can sometimes make long-term management much more difficult.

Fortunately, most forage-related mistakes are correctable once owners better understand how nutrition influences metabolic stability.

Restricting Forage Too Aggressively

One of the most common mistakes owners make is drastically reducing hay intake in an attempt to control weight.

While calorie management matters, horses still require consistent fiber intake for:

• digestive health,

• hindgut stability,

• chewing behavior,

• and emotional well-being.

Severe forage restriction may increase:

• stress,

• ulcer risk,

• boredom,

• and undesirable feeding behaviors.

The goal is usually not eliminating forage.

The goal is selecting more appropriate forage and managing intake carefully.

Assuming All Grass Hay Is Safe

Many owners assume any grass hay automatically qualifies as “safe” for metabolic horses.

In reality, forage sugars can vary tremendously depending on:

• harvest timing,

• sunlight exposure,

• plant maturity,

• weather,

• and growing conditions.

Two grass hays may appear similar while containing very different nutritional profiles.

For horses with significant metabolic sensitivity, forage testing often provides much more reliable information than visual evaluation alone.

Changing Hay Too Frequently

Frequent forage changes can create digestive instability and make weight management more difficult.

Some owners purchase hay opportunistically from multiple sources without realizing how dramatically nutritional characteristics may vary.

Consistency helps owners:

• monitor body condition more accurately,

• maintain stable feeding routines,

• and reduce digestive stress.

When forage changes are necessary, gradual transitions are generally preferred.

Overlooking Portion Size

Even appropriate hay can contribute to weight gain if portions are excessive.

Easy keepers often require fewer calories than expected.

Estimating flakes visually may lead to unintentional overfeeding because bale density varies significantly.

Many owners benefit from weighing forage rather than relying on appearance alone.

This creates more consistent intake and allows for gradual, controlled adjustments.

Ignoring Body Condition Changes

Weight gain often occurs slowly over time.

Owners who see their horses daily may not immediately notice subtle changes in:

• fat deposits,

• neck crest development,

• or overall body condition.

Regular monitoring helps owners respond earlier before metabolic problems become more severe.

Helpful practices include:

• body condition scoring,

• periodic photographs,

• and consistent weight tracking when possible.

Feeding Too Many Extras

Treats, supplements, and concentrates can add up quickly.

Owners sometimes focus heavily on hay while overlooking calories coming from:

• commercial treats,

• sweet feeds,

• multiple supplements,

• or excessive grain.

For many metabolic horses, simplifying the feeding program can improve consistency and reduce unnecessary calorie intake.

Forgetting About Digestive Health

Laminitic horses still require healthy digestive function.

Overly coarse or poor-quality forage may create additional problems for:

• senior horses,

• ulcer-prone horses,

• or animals with dental issues.

The best forage programs balance:

• appropriate calorie management,

• digestibility,

• chewing comfort,

• and consistency.

Lower-calorie forage should still support healthy fiber intake.

Neglecting Exercise and Overall Management

Nutrition is only one piece of metabolic management.

Whenever medically appropriate and veterinarian-approved, movement and exercise may help support:

• weight control,

• insulin sensitivity,

• and overall health.

Sleep, stress, pasture access, medications, and overall management also influence metabolic stability.

Individual Horses Require Individual Plans

Perhaps the biggest mistake of all is assuming one feeding program works for every horse.

Some horses require stricter NSC control.

Others struggle more with portion management or obesity.

Thoughtful forage selection, consistency, and individualized management often provide the best long-term results.

Managing laminitis is rarely about finding one perfect solution.

It is usually about combining many small, consistent management decisions over time.

FAQ

Should laminitic horses have constant access to hay?

Many horses benefit from consistent forage access, though calorie intake still requires management.

Why should hay be weighed?

Flake size varies significantly, making visual estimates unreliable.

Is all grass hay safe for founder-prone horses?

No. Sugar levels vary widely depending on growing and harvest conditions.

Can rapid hay changes affect digestion?

Yes. Sudden forage changes may contribute to digestive stress in sensitive horses.