The Hidden Battle: Understanding Hindgut Disease in Horses

Ben Nedas

Chief Commercial Officer

The Hidden Battle: Understanding Hindgut Disease in Horses



The health of a horse's digestive system is critical in the broad field of equestrian care. Although it is not visible, the hindgut is an important part of this system and can have a major impact on a horse's performance, attitude, and general health when it is ill. Maintaining the balance of the gut microbiome is essential for hindgut health. This article will discuss the causes, signs, and effects of hindgut disease as well as the importance of the microbiome to a horse's general health.


Causes of Hindgut Disease

Hindgut diseases in horses can be attributed to various factors, with diet being a significant contributor. Rapid changes in diet, high-starch feeds, and inadequate forage intake can disturb the delicate balance of the gut microbiome, leading to hindgut acidosis. Overuse of non-steroidal anti-inflammatory drugs (NSAIDs) and antibiotics can also disrupt the microbial balance, making the horse susceptible to diseases like colitis and laminitis.


Symptoms, Subtle Signs, and Impact on Performance

Horses suffering from hindgut disease may exhibit a range of noticeable and non-visible symptoms that have a substantial impact on the physical health and behaviour of the animal. Recognising these signs is critical for early detection and intervention, ensuring the horse's continued health and happiness.

1. Observable Symptoms:

The most immediate signs of hindgut disease include loose droppings, bloating, and abdominal discomfort. These are indicative of internal discomfort and imbalances disrupting the horse’s digestive function. Loose droppings result from an imbalance in the gut flora, affecting water absorption in the colon, and along with bloating, can lead to severe discomfort and colic.

2. Mood and Behavior:

Beyond physical symptoms, a horse suffering from hindgut disease may exhibit mood swings, irritability, and a decrease in appetite. The discomfort and pain can make the horse restless, unwilling to work, and prone to aggressive or withdrawn behaviour.

3. Performance in Work:

The disease compromises a horse’s energy levels, leading to a decline in performance. Horses may exhibit lethargy, weight loss, and decreased muscle tone, impacting their ability to train and compete effectively.

4. Subtle Signs of Discomfort:

  • Unwillingness or Irritability Lifting Up Rear Legs: This can indicate underlying abdominal pain or discomfort originating from the hindgut.
  • Issues with Canter: Horses may exhibit difficulty transitioning into or maintaining a canter, displaying irregularities in gait or a lack of impulsion.
  • Girthiness or Irritability When Being Groomed: This hints at internal distress, particularly around the abdominal area.
  • Tucked Up, Uncomfortable Movement: A tucked-up appearance and stiff movements signal discomfort in the hindgut region.
  • Spookiness and Hyper Sensitivity to Stimulus: Increased spookiness or hyper-reactivity can be indicative of a horse attempting to cope with internal distress.


Being Proactive for Equine Well-being

Recognising both the apparent and subtle indications of hindgut discomfort is the first step towards addressing potential hindgut issues. EquiNectar is dedicated to promoting awareness and providing solutions to support optimal digestive health. By being vigilant and proactive, we can help our equine companions thrive and enjoy a life of health and happiness.


The Gut Microbiome: A Balancing Act

The gut microbiome, consisting of trillions of bacteria, fungi, and viruses, plays a crucial role in a horse’s digestive health. These microorganisms aid in breaking down food, absorbing nutrients, and protecting against pathogens. An imbalance in this microbiome—known as dysbiosis—can lead to a cascade of health issues, including hindgut diseases.

1. Role in Digestion:

The gut microbiome is instrumental in fermenting fibrous components of the horse’s diet, producing volatile fatty acids (VFAs) essential for energy. A disrupted microbiome impairs this process, affecting nutrient absorption and energy availability.

2. Protection Against Pathogens:

A balanced microbiome serves as a line of defence against harmful pathogens. When disrupted, it provides an opportunity for harmful bacteria to flourish, leading to inflammation and disease.

3. Impact on Immunity and Overall Health:

The gut microbiome influences the horse’s immune system and overall health. A balanced microbiome contributes to a robust immune response, whereas dysbiosis can result in increased susceptibility to infections and diseases.


Could EquiNectar be beneficial for your horse?

Navigating the path to equine health doesn’t always require grand gestures. Sometimes, a gentle companion like EquiNectar can make a significant difference. While EquiNectar isn’t a medicine and doesn’t claim to treat or prevent diseases, it’s designed to play a supporting role in your horse’s well-being. Let’s look at how it might subtly contribute to your horse’s health:

1. Assisting in Digesting Feed and Forage:

EquiNectar is here to help your horse make the most of every meal. It’s formulated to aid in the digestion of starch and fructans in grass or hay. This support means that the hindgut is supplied with ideal substrates, helping your horse maintain its energy and vitality.

2. Balancing the Hindgut Microbiome:

Think of a well-balanced gut microbiome as a well-tuned orchestra, with each member playing its part in maintaining harmony. EquiNectar aims to be a gentle conductor, promoting balance within the hindgut. By encouraging a harmonious environment, it helps beneficial microbes thrive, contributing to a stable digestive ecosystem.

In essence, EquiNectar aspires to be a reliable companion, gently supporting the digestive well-being of your horse. It’s about embracing nature’s wisdom and allowing the natural balance to unfold, setting the stage for your horse’s health and harmony. So, could EquiNectar be the gentle nudge that helps your horse stride confidently on the path of well-being? The journey continues, and every step counts.



Addressing and preventing hindgut disease is essential for maintaining a horse’s health, mood, and performance. The gut microbiome is a cornerstone of digestive health, and its balance is vital in protecting against hindgut diseases. The team at EquiNectar is committed to educating and providing solutions for maintaining optimal digestive health in horses, ensuring they lead happy, healthy, and high-performing lives. By understanding the signs and causes of hindgut disease, we can better safeguard our equine companions against these hidden battles within.




EquiNectar® is a natural feed supplement, that is scientifically proven to:

  • Re-balance your horse’s gut bacteria
  • Help your horse maximise benefits from its feed
  • Improve your horse’s condition


More information

EquiNectar® is produced by Tharos Ltd in the UK. It is a natural source of digestive enzymes and contains only the following ingredients:

  • Our patented enzyme rich malt extract
  • Medium chain triglycerides (from coconut oil)
  • Potassium sorbate

For more details of the enzymes within EquiNectar® take a look at the ingredients and enzymes page.


How to feed

Simply add EquiNectar® to your horse's daily feed, using the Feeding Rate chart to determine the correct amount.

For detailed instructions about how to introduce EquiNectar, please read the comprehensive Feeding Guide page.