Grapefruit
1 food contains this ingredient
This is an alphabetical list, not a ranking. Add KL+ to rank foods for your pet in the Food Finder.
About Grapefruit
Grapefruit is a citrus fruit that shows up rarely in pet food, usually in small amounts for flavor or as a fiber and vitamin C source.
Grapefruit is not a common pet food ingredient but may occasionally be used for flavor, moisture or as a source of soluble fiber and vitamin C. Dogs and cats normally synthesize vitamin C and do not need it from their diet, and grapefruit’s acidity, essential oils and furanocoumarins can cause gastrointestinal upset and may interfere with drug metabolism or be toxic in concentrated forms (peel, seeds, oils), so it should be avoided or used only under veterinary guidance.
- Derived from
- citrus fruit pulp or juice (Citrus paradisi)
- Primary role
- flavoring, moisture, soluble fiber
Why it's used
When included at all, grapefruit contributes tartness, moisture, and pectin-type soluble fiber to a recipe. It is not a nutrient dogs or cats require, since both species make their own vitamin C internally.
Common concerns
- Essential oils and psoralens The ASPCA lists grapefruit as toxic to dogs, cats, and horses, identifying essential oils and psoralens in the peel and plant material as the toxic principles, with vomiting, diarrhea, depression, and dermatitis reported as clinical signs.
- Furanocoumarins and drug metabolism Furanocoumarin compounds in grapefruit are documented inhibitors of the CYP3A4 enzyme that many medications rely on for metabolism, an interaction described extensively in human pharmacology literature; dogs and cats carry related CYP3A-family enzymes, so effects on drug metabolism depend on the specific animal enzyme and drug and are worth raising with a veterinarian.
- Peel, pith, seeds, and concentrated oils Documented concern centers on the rind, white pith, and seeds rather than small amounts of plain flesh, since these parts carry the concentrated essential oils and psoralens.
Also relevant
Dogs and cats synthesize their own vitamin C, so grapefruit is not a needed dietary source of it for either species.
3 sources cited
- Grapefruit is classified as toxic to dogs, cats, and horses; toxic principles are essential oils and psoralens; clinical signs include vomiting, diarrhea, depression, and dermatitis
- Furanocoumarins in grapefruit are competitive and mechanism-based inhibitors of CYP3A4
- Vitamin C (ascorbic acid) context in companion animals, including species-specific nutrient needs
Common Questions
What category is Grapefruit?
Grapefruit is categorized as a fruit ingredient in the KibbleLab database.
Is Grapefruit part of an allergen group?
No allergen group is linked to Grapefruit in the KibbleLab database.
Which foods contain Grapefruit?
1 food in the KibbleLab database contain Grapefruit, including Earth Animal.
Foods with Grapefruit
Alphabetical by brand. Scores run 0 to 10, higher is better, on published veterinary science.
Find the right food for your pet
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