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Is Grapefruit toxic to cats?

YES (TOXIC)
Unfortunately, Grapefruit is toxic and potentially harmful to cats. We recommend you keep your feline friends away from this plant. See the table below for more information.
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Scientific Name:Citrus paradisii
Family:Rutaceae
Toxic Principles:Essential oils and psoralens
Clinical Signs:Vomiting, diarrhea, depression; potential dermatitis. Fruit is edible, skins and plant material can cause problems.
If you think your cat may have ingested a poisonous substance, call 888 426 4435 or your local vet
Detailed Write-up
Author:
Alec
Last Updated:
7/13/25

Is Grapefruit Toxic to Cats?

Introduction

Grapefruit happens to be one of the favorite fruits for people across the globe. It is packed with vitamins and nutrients that help your body in numerous ways. As delicious as it may be, it is always important for us to keep in mind the health of our pets. Cats, in particular, are known to be more sensitive to certain foods than dogs or other pets, which is why we may need to limit what we feed them. One of the many fruits we need to be extra cautious while feeding our feline friends is grapefruit. This leads us to an important question that we'll be discussing in this article: Is grapefruit toxic to cats?

The Toxicity of Grapefruit

To start with, it is imperative to understand that grapefruit, in general, is not toxic to cats but, on the other hand, is not recommended. In fact, it should be avoided if possible. The reason for this is that grapefruit has a tendency to interfere with a cat's metabolic function and can lead to health complications. While a small portion of grapefruit generally doesn't pose much of a threat, the possibility of negative effects, especially when consumed in large quantities, is significantly elevated.

The Health Ailments Grapefruit Can Cause in Cats

As mentioned earlier, grapefruit can lead to several health complications in cats/cats. Below, we have listed a few of its side effects that cats can suffer from:

1. Gastrointestinal Problems

Cats have a sensitive digestive system, which might not be able to breakdown and digest grapefruit properly. This may lead to stomach issues like vomiting, diarrhea, and general gastrointestinal distress.

2. Slow Metabolic Functioning

Orange, grapefruit, and other citric fruits have been found to slow a cat's metabolic functioning. This could lead to various health complications like weight gain, increased lethargy, and sluggishness.

3. Depression and Lethargy

Due to the slow metabolic functioning, a cat may experience lethargy, leading to depression and a general lack of enthusiasm for play or exercise.

4. Liver Damage

Grapefruit can lead to significant liver damage in cats, which could lead to permanent damage or even death.

What to Do If Your Cat Eats Grapefruit

In hindsight, it may be best to keep grapefruit out of reach from your cat. However, if your cat consumes grapefruit by accident, the first thing you should do is contact your veterinarian immediately. They will discuss your cat's symptoms and determine what action should be taken. In cases of mild toxicity, there is a chance to manage the symptoms at home. However, if your veterinarian recommends it, they may want to carry out further tests and treatment.

Conclusion

In conclusion, grapefruit is not toxic to cats but should be avoided. Despite the many benefits it has for humans, cats, on the other hand, are at risk of suffering from several ailments if they consume it. As pet owners, it's important for us to keep our pets safe and healthy, and one of the ways of doing that is by keeping track of what we're feeding them. While it may be tempting to share our food with our pets, we must keep in mind that their dietary needs are different from ours. In the end, a balanced diet specifically catered to a feline friend is essential. So, the next time you're snacking on grapefruit, ensure that your kitty isn't around and has adequate food for themself.
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