04/12/2026
We're not nutritionist but here are some guidelines we use. Working directly with an equine nutritionist is highly recommended!
🔬 Understanding NSC in Hay: What Every Horse Owner, Farrier, and Veterinarian Should Know
When we talk about metabolic horses, laminitis—or what I prefer to call lamellar structural failure (LSF)—nutrition becomes just as important as mechanics.
One of the most critical values in a hay analysis is NSC (Non-Structural Carbohydrates)
👉 Typically calculated as: WSC (water-soluble carbohydrates) + starch
Why does this matter?
Because elevated NSC = increased risk for insulin dysregulation, which directly contributes to lamellar damage.
📊 Average NSC Ranking of Common Hay Types (Lowest → Highest)
🟢 Teff Grass (~7–10%)
🟢 Warm-Season Grasses (Bermuda, Bahia) (~8–11%)
🟢 Alfalfa (~9–12%)
🟡 Mixed Hay (~10–13%)
🟡 Timothy (~10–14%)
🟠 Orchardgrass / Fescue / Bluegrass (~12–16%)
🔴 Ryegrass (~15–20%+)
🔴 Small Grain Hays (Oat, Wheat, Barley) (~15–20%+)
⚠️ Here’s the part most people miss:
❗ Hay type does NOT guarantee NSC
❗ The same hay can vary dramatically between cuttings
❗ Sunlight, stress, and harvest timing all matter
👉 A “safe” hay can test high
👉 A “risky” hay can test low
Testing is everything.
🧠 Clinical Takeaways
• Warm-season grasses → typically lower NSC
• Cool-season grasses → higher NSC risk
• Alfalfa → low NSC but calorie-dense
💡 Our Rule of Thumb at Innovative Equine Podiatry
For horses that need to lose weight or are metabolically challenged:
✔ Feed ~1.2% of body weight per day (forage only)
✔ Of that total forage:
👉 25% alfalfa
👉 75% coastal bermuda
👉 This approach helps balance:
• Lower NSC intake
• Adequate protein
• Controlled caloric intake
✔ Pair with a ration balancer to meet vitamin/mineral needs:
👉 Bluebonnet Feeds Limited Ration Balancer
👉 Purina Omega Match® Ration Balancer
⚠️ Important Notes
🔎 Hay must still be tested to confirm NSC
📉 This is a starting point—not a fixed prescription
🔁 Requires constant monitoring and adjustment based on:
• Body condition
• Insulin status
• Comfort and soundness
• Hoof growth and structural response
🔗 Bottom line:
You cannot manage lamellar structural failure mechanically if you are losing the metabolic battle nutritionally.
Creative Equine Solutions Sammy Pittman Horse Science Anatomyworks