05/13/2026
He just needs to CALM DOWN.
Or… maybe his body is stuck in a constant state of internal stress.
The horse that paces endlessly.
The one circling the stall for hours.
The horse who never fully relaxes no matter how much turnout, training, supplements, or exercise you try…
What if the behavior isn’t just behavioral?
What if part of the problem starts in the gut?
Here’s what’s becoming harder to ignore
Horses are fermentation animals. Their hindgut microbes help regulate digestion, energy production, metabolism, and even communication with the nervous system through the gut-brain axis.
When that system becomes disrupted, often called hindgut dysbiosis, horses may experience:
ongoing digestive discomfort
inefficient fermentation
altered stress responses
reduced nutrient utilization
increased reactivity or difficulty settling
Not because they’re bad.
Not because they need more lunging.
And not because every horse simply needs a calming supplement.
Research is showing the gut and nervous system are deeply connected. Inflammation, poor fermentation, excess starch, inconsistent forage intake, or microbial imbalance can all contribute to physical stress that may show up as behavioral stress.
And a lot of horses struggling mentally are also being fed in ways that unintentionally challenge hindgut health:
high-starch meals
long periods without forage
low-fiber diets
poor forage quality
sudden feed changes
feeding programs focused only on calories, not microbial health
Then we normalize the symptoms:
He’s just hot.
He’s anxious.
That’s just his personality.
But sometimes the horse is adapting to chronic internal discomfort the only way he can.
That doesn’t mean every pacing horse has ulcers.
And it doesn’t mean behavior problems are only nutritional.
But behavior and physiology are more connected than many people realize.
A healthier nervous system often starts with:
consistent forage intake
better hindgut support
fiber-based energy
balanced minerals
reduced starch overload
management that supports natural digestive function
Maybe the goal shouldn’t always be to shut the horse down.
Maybe we should ask WHY the horse can’t settle in the first place.
