Vitamin C Deficiency in Guinea Pigs: Scurvy

— Written by Dr Duncan Houston BVSc, founder of Ask A Vet —

Introduction

Guinea pigs (Cavia porcellus) are unable to synthesize vitamin C and must obtain it through diet. A deficiency disrupts collagen formation, leading to scurvy—an often-overlooked but serious condition. In this thorough 2025 guide, we cover causes, signs, diagnosis, treatment, home care, and prevention to support your piggy’s health. 🛡️

Why Vitamin C Matters

Vitamin C (ascorbic acid) is vital for producing collagen, essential for healthy blood vessels, skin, gums, bone, cartilage, and wound healing. It also supports immunity and acts as an antioxidant :contentReference[oaicite:2]{index=2}.

Causes of Deficiency

• Poor diet: lack of fresh produce or less-than-fortified pellets.
• Degraded vitamin in old pellets or water supplements :contentReference[oaicite:3]{index=3}.
• Increased need: young, pregnant, sick, or stressed piggies require more.
• Absorption issues from dental or GI problems.

Signs & Symptoms

Early indicators may include poor coat and lethargy. If untreated, scurvy progresses to:

• Rough/dull or patchy coat :contentReference[oaicite:4]{index=4}
• Swollen, painful joints; stilted gait (“bunny-hop”) :contentReference[oaicite:5]{index=5}
• Bleeding gums, slow-to-heal wounds :contentReference[oaicite:6]{index=6}
• Weight loss, poor appetite, diarrhea (possibly bloody) :contentReference[oaicite:7]{index=7}
• Bone fractures, low bone density :contentReference[oaicite:8]{index=8}
• In severe cases: sepsis, paralysis, respiratory failure, birth defects, death :contentReference[oaicite:9]{index=9}

Diagnosis

• Medical history: diet quality, supplement age, supplies used.
• Physical exam: coat, joint pain, gum/bone examination.
• Blood test: serum ascorbic acid concentration (>22 µM considered normal) :contentReference[oaicite:10]{index=10}.
• X-rays: to detect bone changes or fractures.

Treatment Protocol

Most cases improve quickly:

• Supplementation: Adult pigs: 10 mg/kg/day (~20–25 mg/day); growing/pregnant: 30 mg/kg/day (~30–40 mg/day) :contentReference[oaicite:11]{index=11}.
• Parenteral vitamin C (injection) for severe cases; followed by diet adjustments.
• Add to water or treats—but best delivered via fresh produce or pellets and not water due to degradation :contentReference[oaicite:12]{index=12}.
• Expect improvement within a week, but full recovery may be slower; permanent damage possible in long‑term cases :contentReference[oaicite:13]{index=13}.

Home & Supportive Care

• Offer fresh vitamin C–rich veggies like bell peppers, kale, broccoli, parsley daily :contentReference[oaicite:14]{index=14}.
• Soft pellets and critical-care feeds for poor appetite or dental issues.
• Provide warm, cushioned bedding; padded floor to ease mobility.
• Use joint supplements (e.g., glucosamine) to support healing after consulting veterinarian.
• Monitor weight, coat, stool, and behavior closely.

Prognosis

---

Prevention Guidelines

• Feed high-quality pellets (manufacture within last 90 days).
• Daily fresh vegetables high in vitamin C.
• Store pelleted food cool and dark.
• Consider supplemental C during stress or illness.
• Schedule wellness exams, especially for young, old, pregnant, or sick piggies.

Ask A Vet Support Role

• 📸 Review photos of coat, joints, gums, behavior remotely.
• 📅 Provide supplementation reminders.
• 🌿 Recommend diet changes and joint care.
• 🔁 Track progress and suggest referrals for long-term treatment.

Conclusion

Vitamin C deficiency (scurvy) is preventable but serious. With timely supplementation, fresh diet, veterinary follow-up, and supportive care, most guinea pigs can fully recover and avoid permanent damage. Let Ask A Vet guide you through diet planning and early detection to keep your piggy healthy and happy. 🐾

Worried about scurvy? Consult your exotic vet, update vitamin C intake, and use the Ask A Vet app to monitor your pig’s recovery plan. 📱

— Dr Duncan Houston BVSc, Ask A Vet