Is Mistletoe Poisonous to Cats

Is Mistletoe Poisonous to Cats: Mistletoe has long been associated with holiday traditions, but beneath its festive appeal lies a potential danger to our feline companions.

While mistletoe adds a touch of holiday charm, it is essential for cat owners to be aware of its toxicity and the risks it poses to cats.

In this article, we will explore the dangers of mistletoe for cats and provide essential information on how to keep your furry friend safe during the holiday season.

Is Mistletoe Poisonous to Cats

What is Mistletoe?

Mistletoe is a parasitic plant that grows on the branches or trunks of various trees, such as oak, apple, and pine. It is commonly used as a decorative element during the holiday season, particularly during Christmas, and is often hung above doorways or used as a centerpiece.

However, beneath its festive appearance, certain species of mistletoe contain toxic compounds that can be harmful to both animals and humans.

Toxic Components of Mistletoe

Mistletoe contains toxic substances, with viscotoxin and lectins being the most concerning for cats.


Viscotoxin is a toxic protein found in mistletoe that can have adverse effects on the cardiovascular system and cause gastrointestinal disturbances.


Lectins are carbohydrate-binding proteins found in mistletoe that can cause cellular damage and lead to various symptoms of toxicity.

The Dangers of Mistletoe for Cats

Mistletoe poses several risks to cats due to the toxic components it contains.

Gastrointestinal Upset

Ingestion of mistletoe can lead to gastrointestinal upset in cats, resulting in symptoms such as vomiting and diarrhea.

Cardiovascular Effects

Mistletoe toxicity can affect the cardiovascular system, leading to an increased heart rate and potential cardiovascular collapse in severe cases.

Neurological Symptoms

In some instances, mistletoe poisoning can cause neurological symptoms in cats, such as weakness, tremors, and seizures.

Signs of Mistletoe Poisoning in Cats

It is crucial for cat owners to be able to recognize the signs of mistletoe poisoning to seek immediate veterinary care.

Vomiting and Diarrhea

One of the early signs of mistletoe poisoning is vomiting and diarrhea, as the cat’s body attempts to rid itself of the toxic substances.

Difficulty Breathing

In severe cases of mistletoe poisoning, cats may experience difficulty breathing and respiratory distress.

Increased Heart Rate

Toxic compounds in mistletoe can lead to an increased heart rate in affected cats.

Weakness and Collapse

In advanced stages of mistletoe poisoning, cats may become weak and collapse due to the effects on the cardiovascular system.

What to Do If Your Cat is Exposed to Mistletoe?

If you suspect or know that your cat has been exposed to mistletoe, take the following steps:

Seek Immediate Veterinary Care

If you observe any symptoms of poisoning or suspect your cat has ingested mistletoe, contact your veterinarian immediately. Time is of the essence in such situations.

Induce Vomiting (If Recommended)

In some cases, if ingestion has occurred recently, your veterinarian may recommend inducing vomiting to expel the toxic substances from the cat’s system.

Provide Supportive Care

Follow your veterinarian’s instructions for providing supportive care to your cat. Treatment may involve managing symptoms and stabilizing their condition.

Preventing Mistletoe Poisoning

Prevention is essential to protect your cat from mistletoe poisoning, especially during the holiday season.

Keep Mistletoe Out of Reach

Ensure that any mistletoe decorations are placed well out of reach of your curious feline friend.

Decorate with Artificial Mistletoe

Consider using artificial mistletoe for your holiday decorations, as these are typically non-toxic and safe for pets.

Educate Family and Friends

Educate your family and friends about the dangers of mistletoe for cats, especially if you have visitors during the holidays.

Is Mistletoe Poisonous to Cats

Safe Alternatives for Cats

It’s possible to create a cat-safe holiday environment while still enjoying the festive season.

Catnip and Cat Grass

Offer your cat catnip or cat grass to redirect their attention and provide a safe and enjoyable alternative.

Cat-Safe Decorations

Decorate your home with cat-safe ornaments and decorations, such as cat-friendly tree toys.

Cat-Safe Treats

Treat your cat to special cat-safe treats during the holidays to make them feel included in the festivities.


While mistletoe is a symbol of joy and celebration during the holiday season, it can pose a significant risk to our beloved feline companions. As responsible cat owners, it’s crucial to be aware of the potential dangers and take necessary precautions to keep our cats safe. By choosing cat-safe alternatives and creating a feline-friendly environment, you can ensure your furry friend’s well-being and happiness throughout the holiday season and beyond.


Is Mistletoe Toxic to Cats?

Yes, mistletoe is toxic to cats due to the presence of viscotoxin and lectins.

What Should I Do If My Cat Eats Mistletoe?

If your cat ingests mistletoe, contact your veterinarian immediately for guidance and support.

How Long Does It Take for Mistletoe Poisoning Symptoms to Appear in Cats?

Symptoms of mistletoe poisoning can appear within a few hours after ingestion.

Can Mistletoe Poisoning Be Fatal for Cats?

In severe cases, mistletoe poisoning can be fatal for cats if not treated promptly.

Are There Safe Alternatives to Mistletoe for Cats?

Yes, there are safe alternatives to mistletoe for cats, including catnip, cat grass, safe houseplants, and cat-safe treats.

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