Yes—guinea pigs can safely eat courgettes, also known as zucchini. These mild, low-calorie vegetables are a hydrating and nutritious addition to their diet when offered in moderation. While not a replacement for hay (the cornerstone of guinea pig nutrition), courgettes can be an excellent supplementary treat packed with fiber, vitamins, and water.

🥒 Nutritional Benefits of Courgettes (per 100g):
- Vitamin C: 17.9 mg – Vital to prevent scurvy, a common disease in guinea pigs due to their inability to synthesize their own vitamin C.
- Fiber: 1.0 g – Aids in digestive health and regular bowel movements.
- Water: 95% – Excellent for keeping guinea pigs hydrated, especially in warm months.
- Low Calories: 17 kcal – Helps maintain a healthy weight and prevent obesity.
- Vitamin A: 200 IU – Supports vision, skin, and immune health.
✅ Benefits of Feeding Courgettes to Guinea Pigs
- Great for hydration, especially during summer or dry environments.
- Low in sugar, which makes it safer than fruit and some sweeter vegetables.
- Gentle on the digestive system and unlikely to cause gas or bloat when served properly.
- Offers variety in texture and taste, which helps keep your guinea pig interested in their meals.
⚠️ Precautions
- Overfeeding courgettes can cause diarrhea, bloating, or loss of appetite due to their high water content.
- Courgettes may have pesticide residue, so it’s essential to wash them well or choose organic when possible.
- Never cook courgettes for guinea pigs—they should always be served raw and fresh.
🥗 How to Feed Courgettes
- Wash thoroughly to remove any pesticides or dirt.
- Slice into small, bite-sized pieces.
- Serve 1–2 thin slices, 1–2 times per week as part of a veggie mix.
- Introduce slowly and monitor for any signs of digestive upset.
👶 Can Baby Guinea Pigs Eat Courgettes?
Yes, but only in very small amounts and after 4–6 months of age, once their digestive system has matured. Always start with a tiny piece and observe for 24 hours.
🥬 Best Veggie Pairings
Pair courgettes with:
- Bell peppers – high in vitamin C.
- Carrots – in moderation, due to sugar.
- Cucumbers – hydrating and crunchy.
- Leafy greens like romaine or cilantro – provide fiber and variety.

🐹 Conclusion
Courgettes are a safe and healthy treat for guinea pigs if given in moderation. They offer a hydrating boost and gentle fiber, but they should never replace hay, which must always be the main part of a guinea pig’s diet. Use courgettes to add variety and nutrients while keeping their digestive system happy and balanced.