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Can Guinea Pigs Eat Fennel?

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.


Guinea pig food chart and meal planner - printable pdf download in full colour

Nutrition Information

Nutrition🍃mg per 100g
Vitamin C9
Calcium20
Sugar3.3
Water92.9
Fibre1.8
Phosphorous50

Safe Vegetables

🫑 Bell PeppersRead the Bell Pepper guide ›
🥬 Bok ChoyRead the Bok Choy (Pak Choi / Chinese Leaf) guide ›
🥦 BroccoliRead the Broccoli guide ›
🥕 CarrotsRead the Carrot guide ›
🌱 CeleriacRead the Celeriac guide ›
🌱 CeleryRead the Celery guide ›
🥬 Collard GreensRead the Collard Greens guide ›
🌾 Corn on the CobRead the Corn guide ›
🥒 CucumberRead the Cucumber guide ›
🌼 DandelionRead the Dandelion guide ›
🌿 FennelRead the Fennel guide ›
🌿 French Beans (Fine Green Beans)Read the French Beans guide ›
🥬 KaleRead the Kale guide ›
🥬 LettuceRead the Lettuce guide ›
🌿 SpinachRead the Spinach guide ›
🍅 TomatoRead the Tomato guide ›
🍃 WatercressRead the Watercress guide ›

Safe Fruits

🍎 AppleRead the Apple guide ›
🍌 BananaRead the Banana guide ›
🫐 BlueberriesRead the Blueberries guide ›
🍇 GrapesRead the Grape guide ›
🍈 MelonRead the Melon guide ›
🍓 StrawberriesRead the Strawberry guide ›
🍉 WatermelonRead the Watermelon guide ›

Safe Herbs

🌿 BasilRead the Basil guide ›
🌱 Coriander (Cilantro)Read the Coriander guide ›
🌿 DillRead the Dill guide ›
🌱 MintRead the Mint guide ›
🌿 ParsleyRead the Parsley guide ›

Monique Hanford

Monique Hanford

Monique Hanford is a trusted guinea pig expert and founder of Guinea Piggles, one of the UK’s leading resources on guinea pig welfare. With nearly a decade of hands-on experience and research into guinea pig care, she provides practical, evidence-based guidance to help owners give their pets the best possible lives. Find out more...View Author posts