Yes, guinea pigs can eat fennel bulbs safely as part of their daily vegetable portion. Fennel has a crunchy texture similar to celery and a mild aniseed flavour that some guinea pigs enjoy. Feed in moderation alongside other fresh vegetables.
Benefits of Fennel for Guinea Pigs
- Crunchy and enjoyable — Many guinea pigs like the texture, and it provides variety in their diet.
- Moderate vitamin C — Contains 9mg per 100g, supporting guinea pigs’ vitamin C needs as they cannot produce this vitamin themselves.
- Good source of fibre — Supports healthy digestion and gut function.
- Distinctive flavour — The mild aniseed taste adds variety to your guinea pig’s daily vegetable portion.
How to Safely Feed Fennel to Guinea Pigs
- Frequency: Occasionally or in small quantities
- Quantity: A small slice per piggy per serving
- Edible Parts: Bulb and leaves (fronds)
- Preparation: Wash thoroughly before feeding
💡 Tip: Mix fennel with other greens and vegetables that are high in vitamin C and fibre to create a balanced daily portion for your guinea pigs.

Nutrition Information
| Nutrition🍃 | mg per 100g |
|---|---|
| Vitamin C | 9 |
| Calcium | 20 |
| Sugar | 3.3 |
| Water | 92.9 |
| Fibre | 1.8 |
| Phosphorous | 50 |
Safe Vegetables
🫑 Bell Peppers → Read the Bell Pepper guide ›
🥬 Bok Choy → Read the Bok Choy (Pak Choi / Chinese Leaf) guide ›
🥦 Broccoli → Read the Broccoli guide ›
🥕 Carrots → Read the Carrot guide ›
🌱 Celeriac→ Read the Celeriac guide ›
🌱 Celery → Read the Celery guide ›
🥬 Collard Greens → Read the Collard Greens guide ›
🌾 Corn on the Cob → Read the Corn guide ›
🥒 Cucumber → Read the Cucumber guide ›
🌼 Dandelion → Read the Dandelion guide ›
🌿 Fennel → Read the Fennel guide ›
🌿 French Beans (Fine Green Beans) → Read the French Beans guide ›
🥬 Kale → Read the Kale guide ›
🥬 Lettuce → Read the Lettuce guide ›
🌿 Spinach → Read the Spinach guide ›
🍅 Tomato→ Read the Tomato guide ›
🍃 Watercress→ Read the Watercress guide ›
Safe Fruits
🍎 Apple →Read the Apple guide ›
🍌 Banana →Read the Banana guide ›
🫐 Blueberries →Read the Blueberries guide ›
🍇 Grapes →Read the Grape guide ›
🍈 Melon →Read the Melon guide ›
🍓 Strawberries →Read the Strawberry guide ›
🍉 Watermelon →Read the Watermelon guide ›
Safe Herbs
🌿 Basil → Read the Basil guide ›
🌱 Coriander (Cilantro) → Read the Coriander guide ›
🌿 Dill → Read the Dill guide ›
🌱 Mint → Read the Mint guide ›
🌿 Parsley → Read the Parsley guide ›
