This week, we are revisiting the topics of insulin resistance and equine metabolic syndrome (EMS).

Those issues have been on my mind recently due to the many questions I have received, and because I am currently working on a project with an insulin-resistant mare that is struggling to make any progress at the facility I manage.

Join me as I share my insights on how these recoveries typically unfold.

Act Early and Monitor Progress

Recognize any changes in your horse before they become serious problems. Prevention is always the key, as long-term, unmanaged insulin resistance can lead to laminitis and permanent damage. 

The Danger of Repeated Relapses

Each time a horse swings between recovery and relapse, it becomes harder to reverse insulin resistance. Aim for consistent recovery, with no symptoms and healthy blood work. After that, you will need to maintain those results through controlled management.

Safe Grass Reintroduction

Horses benefit from a natural herd life and grazing, but returning to pasture should be gradual. Monitor the horse closely for swelling, fat pads, or any early sign of regression, and adjust its turnout times accordingly.

Key Physical Signs

Fat pads behind the shoulders or on the tail dock, and a crested neck, are usually indicators of insulin resistance, even before blood work confirms it. Unexpected weight gain or puffiness can also signal trouble.

Behavioral Clues

Food aggression and irritability can result from poor satiety-hormone regulation and blood sugar swings. That is often mistaken for personality, but improving the metabolic balance usually reduces that behavior.

Thirst and Urination Changes

Increased thirst and urination may indicate that the horse's body is working hard to flush out excess sugar. That often tends to occur in spring or when grass intake increases.

Edema and Fluid Retention

Swelling in the sheath, udder, legs, or above the eyes often links to high sugar intake and reduced movement. Increasing the horse's daily activity can quickly improve that.

Laminitis Risks

High insulin can damage hoof tissues, and reduced movement worsens the problem. Support hoof comfort, but keep the horse moving to break the inflammation–insulin cycle.

General Inflammation and Soreness

Insulin resistance can cause full-body soreness, joint stiffness, and mobility issues, which can sometimes be mistaken for aging. Addressing diet and movement can often reverse those symptoms, even in older horses.

Consistent Management

Recovery is not always linear. Track the symptoms over 30, 60, and 90 days, and adapt your management, if necessary, for any setbacks caused by weather, limited movement, or dietary slips.

Final Thoughts

Insulin resistance and equine metabolic syndrome require early recognition, consistent management, and ongoing monitoring. Watching for key physical and behavioral signs, addressing issues before there are any changes in the blood work, and maintaining a steady diet and movement routine will allow you to break the cycle of relapse and protect the long-term health of your horse.

Links and resources:

Connect with Elisha Edwards on her website 

Join my email list to be notified about new podcast releases and upcoming webinars.

Free Webinar Masterclass: Four Steps to Solving Equine Metabolic Syndrome Naturally

Register for my self-paced course, Resolving Equine Metabolic Syndrome Naturally.

Today, we are focusing on how much a horse should eat.

Horses should not eat continuously, but determining the right amount of food and finding the right balance between enough and too much can be complicated, particularly for horses with insulin resistance or metabolic issues.

Metabolic and Insulin-Resistant Horses

Feeding horses with metabolic issues and insulin-resistance the correct amount can often be the missing piece once their exercise and nutrition are optimized. Some horses can self-regulate easily, while others need careful management to avoid overeating.

Feeding the Right Amount of Hay

A widely accepted guideline is to feed horses between 1.5% and 3% of their body weight in hay per day. That is not a hard and fast rule, however, as hard keepers and some thoroughbreds may require more, while easy keepers and metabolic horses may need less. The key is to adjust the quantity according to the individual needs of each horse.

Finding the Right Balance 

Horses can usually cope with three to four hours without food, but extended gaps should be avoided, especially within a 12-hour window. Feeding them too much can increase weight gain and metabolic issues, while over restricting can slow their metabolic rate, raise their stress levels, compromise their immunity, delay healing, and increase the risk of ulcers. 

Factors That Matter

The needs of horses vary according to their breed, body condition, health status, and even past experiences with food scarcity or starvation. Herd dynamics can also influence intake, as dominant horses often consume more than their share, leaving others with less. Noticing which horse controls access to the hay and how it interacts with its herd mates can reveal any hidden imbalances in feeding.

Managing Intake 

Slowing their eating tends to be more effective than feeding horses less. Using small-hole slow-feed nets, providing smaller portions often, and placing hay in different locations can help owners control their food intake. Owners should also encourage their horses to move by using track systems, ponying them, or taking short walks, as that supports their metabolism, increases satiety, and reduces the urge to graze constantly. The increased muscle mass will also increase the metabolic rate of a horse, helping to manage its weight more effectively.

Special Considerations 

Horses with insulin resistance or other metabolic issues tend to become hungry more often, as blood sugar fluctuations affect their satiety hormones. Owners should provide those horses with a low-glycemic forage and high-quality nutrition. They should also ensure they exercise regularly, using track systems, ponying them, or taking short walks to support their metabolism, increase satiety, and reduce the urge to graze constantly. As their nutrition improves, those horses may even naturally reduce their eating to play and interact with other horses.

Practical Feeding Adjustments

When horses have free access to food, it can be challenging to know exactly how much they eat, so observing their behavior is often the best way to gauge their intake. It is also essential to consider pasture consumption, especially when the grass is abundant, to prevent calorie overload. Proper storage and presentation of hay will reduce waste, which sometimes means holding off on topping up until the horse has finished eating.

Planning Strategically 

Horses train their humans to feed them on cue, so when owners become strategic about their feeding times, it helps to maintain a healthy balance between satisfaction and overfeeding.

Links and resources:

Connect with Elisha Edwards on her website 

Join my email list to be notified about new podcast releases and upcoming webinars.

Free Webinar Masterclass: Four Steps to Solving Equine Metabolic Syndrome Naturally

Register for my self-paced course, Resolving Equine Metabolic Syndrome Naturally.

This week, we are focusing on dosing.

In this episode, I explain the concept of the minimum effective dose, which is the smallest dosage required for the body to respond to or benefit from. The same principle applies to horses when adjusting their nutrition or adding supplements. The aim is to provide just enough to see a positive response, without going so far that it causes unwanted or harmful effects.

Dosing Principles 

In pharmacology, the ideal dosing range lies between the minimum effective dose and the maximum tolerated dose. That principle also applies to nutritional supplementation in horses, where exceeding the minimum effective dose could lead to side effects or adverse reactions. The goal is always to use the smallest amount that elicits a benefit, minimizing waste and risk.

Why Less Is More

Once a supplement starts to work, increasing it will not necessarily improve the results. It will likely reduce the effectiveness and strain the body. So, always start with just enough to be effective.

Individual Tolerance and Sensitivity

Every horse responds differently to supplements. Factors like breed, health history, and immune strength all play a role. One horse may tolerate pasture or a supplement easily, while another may react badly to the same thing. Sensitivity varies widely, so dosing should be based on the individual horse rather than generalized standards.

Understanding the Modern Horse

Today, horses are often nutrient-deficient due to poor food quality, high toxicity levels, and chronic stress. Those factors increase sensitivity and reduce nutrient absorption, leading to horses with leaky gut, immune disorders, or genetic diseases that require a more individualized approach to their supplementation.

Start Low 

Many people tend to overdo supplementation, thinking more is better. That mindset could be harmful for sensitive animals like horses. When starting with a low dosage, you allow room to adjust upward if necessary and can avoid overloading the body. High doses can cause intolerance and side effects that could be mistaken for a problem with the supplement itself.

Special Considerations 

The form and bioavailability of nutrients are the keys to determining whether or not a horse can absorb and benefit from them. For horses with inflammation, metabolic issues, or digestive stress, gentle and minimal intervention is always better. By avoiding multivitamins and using single, targeted nutrients instead, horse owners can support more precise and effective recovery. 

Form Matters

Nutrient forms differ in their bioavailability. For example, magnesium oxide is less bioavailable than magnesium citrate or magnesium glycinate. When absorption is poor, you may need higher doses to see results, which can push the dose closer to the maximum tolerated limit without any real benefit. Choosing well-absorbed, high-quality forms helps ensure the horse benefits without adding stress to the body.  

Watch for Absorption Issues

Stress and chronic health conditions can impair nutrient absorption. Even the best supplement will not help if the horse cannot digest or utilize it. Bloodwork is helpful, but if levels do not improve with supplementation, the issue may be poor absorption rather than insufficient dosing.

Over-Supplementing and Nutrient Competition

Supplements with too many ingredients can cause nutrients to compete for absorption, reducing their effectiveness. For example, copper and zinc interfere with each other when given together. Complex formulas can overwhelm the body, adding to its load. In many cases, simplifying the diet is more effective than increasing supplementation.

Reset and Rebuild

In cases of toxicity or poor liver function, the best course may be to remove all supplements, leaving the horse on only hay and water. That helps the body reset, reduces inflammation, and reveals whether or not a supplement is causing harm. Recovery should always begin with the basics. Only add nutrients and supplements once the horse can handle them.

Quotes:

"Always start low with dosage."

"Over-supplementing creates more problems than it solves."

"Watch the horse, not the label."

"Use high-quality nutrients with proven bioavailability.”

"If you are not seeing improvement, pull back and reassess."

"Sometimes the best thing to do is nothing but hay and water."

"Do not assume more is better."

"Form matters more than quantity."

Links and resources:

Connect with Elisha Edwards on her website 

Join my email list to be notified about new podcast releases and upcoming webinars.

Free Webinar Masterclass: Four Steps to Solving Equine Metabolic Syndrome Naturally

Register for my self-paced course, Resolving Equine Metabolic Syndrome Naturally.