03/08/2026
Every veterinarian has them. The cases that don't respond to standard protocols. The horse where bloodwork is normal, imaging is clean, and the owner is sitting across from you saying, "But something is still wrong."
Functional nutrition provides a framework for approaching these cases. It evaluates six foundational systems, each of which must function properly before downstream health can stabilize.
Digestion. Is the horse actually absorbing the nutrients it's consuming? Compromised stomach acid production, inadequate enzyme secretion, and disrupted microbiome communities can render even perfectly formulated diets ineffective.
Blood sugar regulation. Chronic insulin cycling depletes B vitamins, elevates cortisol, promotes systemic inflammation, and shifts the body into a catabolic state. This affects every horse consuming significant starch loads, not only those presenting with metabolic syndrome.
Hydration. Mild chronic dehydration impairs gut motility, reduces blood volume, concentrates waste products, and diminishes nutrient transport. Access to water and adequate intake are not equivalent measures.
Mineral balance. Minerals function in ratios and competitive relationships. Correcting one deficiency without attending to these relationships creates new imbalances. Iron overload, for example, simultaneously interferes with copper, zinc, and manganese utilization.
Fatty acid balance. The shift from omega-3 dominant ancestral forages to omega-6 dominant commercial feeds fundamentally alters inflammatory tone at the cellular level.
Nutrient density. Guaranteed analysis values do not distinguish between nutrient sources. Bioavailability, form, and the presence of anti-nutritive factors determine actual nutritional value.
If you're encountering cases that don't fit the textbook, I'd welcome the conversation.
stephaniecarterntp.com