Guinea Pig Nutrition Guide 2026
Like humans, guinea pigs cannot make their own Vitamin C. This makes their diet unique among pets. Without fresh Vitamin C daily, they can develop scurvy. Otherwise, they are fiber-loving grazers similar to rabbits.
Quick Answer
A balanced guinea pig diet needs the right mix of protein, fats, vitamins, and minerals. Browse our diet guides below for life-stage and condition-specific advice.
Nutritional Needs Overview
Guinea pigs need a diet high in fiber (hay) and daily fresh vegetables rich in Vitamin C. Pellets should be a supplement, not the main meal.
⚡ Essential Nutrients
🚫 Foods to Avoid
Diet Types & Guides
Compare feeding options and find what works for your Guinea Pig.
Vitamin C Loading
Preventing scurvy with proper veggies.
Pros
- Prevents disease
- Fresh food gives joy
Cons
- Must be fresh daily
💡Pro Feeding Tips
Unlimited Timothy hay at all times
Bell peppers (green/yellow/red) are the best daily source of Vitamin C
Do not put Vitamin C drops in water (they degrade and change taste)
Remove uneaten fresh food after a few hours
Frequently Asked Questions
Do I need a Vitamin C supplement?▼
Explore More
Trusted sources: AAFCO, AVMA Nutrition
Not Sure What to Feed?
Ask our AI assistant for a personalized diet plan based on your Guinea Pig's specific needs, age, and health conditions.