Why Do Horses Need Vitamin C and How Does It Affect Their Bodies?

Vitamin C (ascorbic acid) is an essential nutrient that plays a key role in many biological processes—not only in humans but also in horses. While healthy horses are able to produce this vitamin on their own, there are certain situations where their natural production may not be sufficient, making it beneficial to supplement with a high-quality nutritional product.

Vitamin C is a powerful antioxidant that protects cells from oxidative stress and supports the production of collagen, carnitine, and tissue regeneration. In horses, it strengthens the immune system, speeds up healing, improves liver function, supports a healthy gut microbiome, and helps with respiratory issues. In stressful situations, it helps counteract the negative effects of cortisol.

💡 When to supplement Vitamin C?

• After infection, injury, or surgery

• During transport, competitions, or environmental changes

• In older horses

• During winter or periods of increased infection risk

• In cases of chronic respiratory issues

• During high performance or stress

💡 Recommended dosage:

• Prevention / immune support: 5–10 g per day

• Stress, illness, recovery: 15–20 g per day (consult with a veterinarian)

Administer in 2–4 week cycles, ideally with the morning feed.

Supplementing vitamin C is safe and effective—especially during periods of increased physical or environmental demands on the horse's body.

Why do we recommend Vitamin C 100% from Greenfield Equine?

🌿 100% pure vitamin C with no additives or preservatives
🌿 Powder form – easy to dose and mix into feed
🌿 High absorption and effectiveness
🌿 Suitable for sport, leisure, and senior horses
🌿 Developed and produced in Slovakia with a focus on quality and equine health