Fennel

70 foods contain this ingredient

Herb

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About Fennel

Fennel is an aromatic plant whose seeds or bulb are sometimes added to pet foods and treats in small amounts for flavor and fiber.

Fennel is used in pet foods and treats mainly as a flavoring and source of dietary fiber, volatile oils, vitamins and minerals, with seeds and bulb contributing mild digestive-supporting compounds and antioxidants. It can help freshen breath and offer mild carminative benefits for dogs (and occasionally cats), but should be used in small amounts because concentrated essential oils or large quantities can cause gastrointestinal upset or interact with medications or pregnancy—consult your veterinarian if unsure.

Related ingredients

Fennel Seed Sweet Fennel

Derived from: fennel plant (Foeniculum vulgare) seed or bulb
Primary role: flavoring and fiber source

Why it's used

Fennel contributes a mild aromatic flavor along with dietary fiber and small amounts of vitamins and minerals, and it is sometimes used in small quantities for its traditional association with fresh breath and digestive comfort. Its role in a formula is typically minor by weight, functioning more as a flavor and fiber note than a significant nutrient source.

Common concerns

Whole fennel versus concentrated oil The ASPCA lists fennel as non-toxic to dogs, cats, and horses when consumed in small quantities as food, but distinguishes this from concentrated fennel essential oil, which it advises avoiding.
Essential oil sensitivity Concentrated essential oils generally are absorbed readily through the gastrointestinal tract, skin, and lungs, and veterinary toxicology references note that cats have reduced ability to metabolize many essential oil compounds compared with dogs.
Large quantities and digestion Feeding fennel in larger amounts than typically used for flavoring has been associated with gastrointestinal upset in some pets.

Also relevant

Owners considering any concentrated fennel oil or supplement product, rather than small culinary amounts, are generally encouraged to check with a veterinarian first.

2 sources cited

Common Questions

What category is Fennel?

Fennel is categorized as a herb ingredient in the KibbleLab database.

Is Fennel part of an allergen group?

No allergen group is linked to Fennel in the KibbleLab database.

Which foods contain Fennel?

70 foods in the KibbleLab database contain Fennel, including Farmina, Fera Pets.

Foods with Fennel

Alphabetical by brand. Scores run 0 to 10, higher is better, on published veterinary science.