Why Your Horse’s Gut Health is the Foundation for Success
Feb 26
Expert Advice from Equell, Official Supplements Partner to British Eventing
Eventing asks extraordinary things of
horses: Precision in the dressage. Power and boldness across country. Accuracy
and carefulness on the final day. All of this under intense atmosphere and
pressure for both horse and rider! The margins between top placings are often
small and yet one of the most powerful performance influencers is often
overlooked. The gut.
Your horse’s digestive system is both complex & sensitive. For competition horses the cumulative effect of regular stressors including travel and intensive training can be high. The hindgut houses billions of microbial colonies responsible for fermenting fibre and producing volatile fatty acids, a key source of slow-release energy. These microbes also play an important role in immune resilience, nutrient absorption and the gut–brain axis which influences behaviour.
When that environment is stable, horses tend to feel consistent in energy, behaviour and condition but when it is disrupted, we may see loose droppings, tension, reactivity, fluctuating energy, loss of topline or reduced recovery between phases.
“Prebiotics provide the ‘food’ for good bacteria in the gut to thrive, it is particularly important to supplement these bacteria during times of stress such as when competing or during reduced turnout through winter.” Charlotte Radley MRCVS
Sustainable Energy
Fibre fermentation in a healthy hindgut produces steady, usable energy, supporting stamina without the sharp peaks and troughs associated with starch-heavy feeding. That matters not just for endurance, but for rideability and ultimately performance.
An event horse must remain adjustable and focused from entering the white boards to jumping the final fence, so supporting a healthy gut environment helps underpin that consistency and provide sustainable power without unnecessary fizz. Event horses train hard and need to recover quickly between phases. Digestive health influences nutrient absorption, immune resilience and importantly recovery from stress, making a well-fed, resilient gut foundation essential for long-term comfort and optimal performance across the season.
Your horse’s digestive system is both complex & sensitive. For competition horses the cumulative effect of regular stressors including travel and intensive training can be high. The hindgut houses billions of microbial colonies responsible for fermenting fibre and producing volatile fatty acids, a key source of slow-release energy. These microbes also play an important role in immune resilience, nutrient absorption and the gut–brain axis which influences behaviour.
When that environment is stable, horses tend to feel consistent in energy, behaviour and condition but when it is disrupted, we may see loose droppings, tension, reactivity, fluctuating energy, loss of topline or reduced recovery between phases.
“Prebiotics provide the ‘food’ for good bacteria in the gut to thrive, it is particularly important to supplement these bacteria during times of stress such as when competing or during reduced turnout through winter.” Charlotte Radley MRCVS
Sustainable Energy
Fibre fermentation in a healthy hindgut produces steady, usable energy, supporting stamina without the sharp peaks and troughs associated with starch-heavy feeding. That matters not just for endurance, but for rideability and ultimately performance.
An event horse must remain adjustable and focused from entering the white boards to jumping the final fence, so supporting a healthy gut environment helps underpin that consistency and provide sustainable power without unnecessary fizz. Event horses train hard and need to recover quickly between phases. Digestive health influences nutrient absorption, immune resilience and importantly recovery from stress, making a well-fed, resilient gut foundation essential for long-term comfort and optimal performance across the season.
5 Signs Your Horse’s Gut May Need
Support:
1. Inconsistent Droppings Loose, watery or fluctuating droppings when travelling or competing can indicate the hindgut microbiome is under stress.
2. Energy Highs and Lows Sharp one day, flat the next? Digestive stability plays a key role in sustainable, fibre-derived energy production.
3. Tension or Reactivity The gut–brain axis is real and changes in microbial balance can influence behavioural consistency and stress responses.
4. Loss of Topline or Slow Recovery Compromised nutrient absorption may affect muscle maintenance and post-exercise recovery.
5. Dull Coat or Poor Condition Maintaining gut lining integrity is essential for overall health as the gut lining is responsible for absorbing the nutrients that support coat shine, weight stability and overall vitality.
Strategies to Protect and Promote Equine Gut Health
1. Inconsistent Droppings Loose, watery or fluctuating droppings when travelling or competing can indicate the hindgut microbiome is under stress.
2. Energy Highs and Lows Sharp one day, flat the next? Digestive stability plays a key role in sustainable, fibre-derived energy production.
3. Tension or Reactivity The gut–brain axis is real and changes in microbial balance can influence behavioural consistency and stress responses.
4. Loss of Topline or Slow Recovery Compromised nutrient absorption may affect muscle maintenance and post-exercise recovery.
5. Dull Coat or Poor Condition Maintaining gut lining integrity is essential for overall health as the gut lining is responsible for absorbing the nutrients that support coat shine, weight stability and overall vitality.
Strategies to Protect and Promote Equine Gut Health
- Prioritise Forage First - Forage is the foundation of equine digestion. Long-stem hay, fibre-rich feeds and slow-feeding solutions keep the hindgut continuously supplied with fermentable substrate, promoting microbial diversity and digestive stability.
- Manage Meal Size and Frequency - Smaller, more frequent feeding helps prevent large swings in gut pH and supports consistent fermentation throughout the day. Minimising prolonged gaps between feeds reduces periods where the hindgut microbiota may suffer.
- Limit High-Starch Diets - Diets high in starch reduce fibre-degrading bacteria and can encourage lactic acid bacteria that disrupt gut balance. A fibre-first approach reduces this risk and supports a broader microbial ecosystem. Remember though, that horses do not eat percentages, so pay more attention to the grams per day/feed of starch rather than simply the % on the bag, as that could lead to making incorrect feeding choices. “By avoiding a feed or supplement simply because of sugar and starch percentage and not the actual intake amounts, you could eliminate a perfectly suitable option for your horse. In the case of supplements, the daily feeding rates are typically very low so their contribution to total dietary sugar and starch is usually minimal.” Jennifer Little, consultant equine nutritionist BSc Hons, RNutr, PgCert
- Introduce Dietary Variety Strategically - While the core diet should remain consistent, incorporating different fibre sources (where appropriate) can help nourish a wider range of microbial species. Research shows that changes in forage type can influence the microbial community structure in the hindgut.
- Support During Management Stress - Travel, competition, stabling and abrupt dietary changes all impact the hindgut microbiome. Supporting horses with gradual introduction of feeds, consistent forage access and digestion-friendly strategies such as feeding forage before exercise or travel can help maintain diversity during these stressors.
- Consider Prebiotic Support - Prebiotics - dietary fibres that feed beneficial gut bacteria - may help stabilise the microbiome during times of nutritional change or stress. Studies suggest that supplementation can shift microbial composition in ways that positively support resilience. (Meta-analysis of equine gastro-intestinal microbiome research and evaluation of the impact of fructooligosaccharide supplementation on the gastro-intestinal microbiome of thoroughbred youngstock during nutritional stress - Meier, S. V. (Author). 25 Jan 2022)
Changing the Conversation
Supplementation is often reactive, with riders reaching for help when triggers such as stiffness or behavioural changes occur. At Equell, we take a different approach.
Because the gut influences energy metabolism, behaviour, immune resilience, nutrient absorption and overall condition, strengthening that system first supports the horse as a whole. Proactively not reactively.
The top riders don’t achieve their results by accident, they are carefully planned. Whether you are a leisure rider or are focusing on important seasonal goals such as Badminton, gut health & stability is essential to success and your horse’s wellbeing. That’s why our ethos across our product range is Gut First. Always.
Supplementation is often reactive, with riders reaching for help when triggers such as stiffness or behavioural changes occur. At Equell, we take a different approach.
Because the gut influences energy metabolism, behaviour, immune resilience, nutrient absorption and overall condition, strengthening that system first supports the horse as a whole. Proactively not reactively.
The top riders don’t achieve their results by accident, they are carefully planned. Whether you are a leisure rider or are focusing on important seasonal goals such as Badminton, gut health & stability is essential to success and your horse’s wellbeing. That’s why our ethos across our product range is Gut First. Always.
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