Guinea Pig Scurvy (Vitamin C Deficiency): Signs, Treatment & Diet Requirements
Published: 2026-05-31 · Updated: 2026-05-31
Guinea pigs, like humans and other primates, CANNOT synthesize their own Vitamin C — they lack the enzyme L-gulonolactone oxidase. This means 100% of their Vitamin C must come from their diet. The daily requirement is 10-30 mg/kg (higher for pregnant, nursing, growing, or...
Behavior Profile
| Behavior Type | Nutritional Deficiency Disease |
|---|---|
| Common Triggers | Guinea pig pellet-only diet (vitamin C degrades rapidly in stored pellets), no fresh vegetables, incorrect diet formulation, increased metabolic demand during pregnancy/growth/illness, competition in multi-pig households (dominant pig eating all the vegetables) |
| Associated Emotions | Diet education, Preventative commitment, Supplement diligence |
Guinea pigs, like humans and other primates, CANNOT synthesize their own Vitamin C — they lack the enzyme L-gulonolactone oxidase. This means 100% of their Vitamin C must come from their diet. The daily requirement is 10-30 mg/kg (higher for pregnant, nursing, growing, or sick guinea pigs). Scurvy develops within 2-4 weeks of Vitamin C deficiency and can be fatal if uncorrected.
Signs of Vitamin C Deficiency (Scurvy)
- Rough hair coat, poor condition, weight loss
- Lethargy, reluctance to move, hiding
- Painful/swollen joints — may appear to be limping or reluctant to walk
- Difficulty eating/drooling — teeth appear normal but gums are inflamed and bleed easily (collagen synthesis failure)
- Delayed wound healing, bruising easily
- Diarrhea or GI stasis (secondary to pain and anorexia)
- Increased susceptibility to respiratory and skin infections (impaired immune function)
- Death in severe prolonged deficiency
Vitamin C Sources (Ranked by Bioavailability)
- Fresh bell peppers (especially red/yellow): 80-190 mg/100g — the SINGLE BEST daily source. 1/8 of a bell pepper provides the daily requirement for most adult guinea pigs. Low in calcium (safe for bladder-stone-prone pigs).
- Kale, parsley, broccoli, dandelion greens: Good sources but higher calcium — moderate for stone-prone pigs
- Oxbow Natural Science Vitamin C tablets (or equivalent): Reliable supplement — 25-50 mg/tablet. Most guinea pigs eat them willingly as 'cookies'
- DO NOT rely on pellets for Vitamin C: Vitamin C degrades by 50% within 90 days of milling even in properly stored pellets. Water-dropper Vitamin C drops are unreliable — light and heat rapidly degrade dissolved Vitamin C.
Emergency Treatment
Veterinary Vitamin C injection for severe deficiency: $30-80. Oral supplementation at home: 50-100 mg/kg/day until signs resolve, then maintenance dose. Improvement is typically seen within 1-2 weeks with adequate supplementation. Exotic vet visit for scurvy evaluation: $100-250.
Related Topics
References & Further Reading
- ASPCA. Common Dog & Cat Behavior Issues. aspca.org/pet-care
- American Animal Hospital Association (AAHA). Pet Behavior Resources. aaha.org
- Journal of Veterinary Behavior (Elsevier). Clinical Applications and Research. sciencedirect.com
- American Veterinary Society of Animal Behavior (AVSAB). Position Statements & Resources. avsab.org
Citations are provided for educational reference. Content is reviewed periodically but does not replace professional veterinary advice. If your pet shows signs of illness, contact a licensed veterinarian immediately.