Last Updated on October 1, 2026 by admin
Quick answer: There is no natural cat dewormer or home remedy that reliably gets rid of worms. Garlic, pumpkin seeds, coconut oil, apple cider vinegar, diatomaceous earth, herbs and essential oils don’t clear roundworms, hookworms or tapeworms, and some of them (garlic and essential oils especially) can harm cats. If you see worms, rice-like segments, vomiting, diarrhea, weight loss or a potbellied kitten, call your vet for a diagnosis and a cat-safe dewormer.
Natural remedies sound gentle, but the real risk is delay. While a pantry remedy “works,” parasites keep feeding, shedding eggs into your home and, in kittens, causing anemia and poor growth. The good news is that proper treatment is usually simple, and there’s plenty you can safely do at home to support it.
Do Natural Dewormers for Cats Work?
No. None of the popular home remedies has good evidence of clearing intestinal worms in cats. Here’s how the common suggestions stack up:
| Home remedy | Does it deworm a cat? | Safety concern |
|---|---|---|
| Garlic | No | Toxic to cats: damages red blood cells (Heinz body anemia) |
| Pumpkin seeds | No reliable effect | Delays real treatment; plain pumpkin puree is only a fiber source |
| Coconut oil | No | Can cause diarrhea; rubbing it on skin does nothing for gut worms |
| Apple cider vinegar | No | Can irritate the mouth and stomach |
| Diatomaceous earth | No reliable effect | Dust can irritate airways if inhaled |
| Wormwood, black walnut, herbal “parasite cleanses” | Unproven | Potency varies; some plant compounds are harmful to cats |
| Essential oils | No | Toxic to cats through licking, skin contact or inhalation |
| Carrots, turmeric, chamomile, parsley water, milk | No | Delays treatment; milk often causes diarrhea in adult cats |
| Homeopathic drops | No | No active effect on parasites |
Garlic Is Not a Dewormer
Garlic deserves its own warning because it shows up on almost every old home-remedy list for worms and fleas. The ASPCA lists garlic as toxic to cats, and the Merck Veterinary Manual explains that garlic and other Allium plants (onions, leeks, chives) damage red blood cells and can cause Heinz body hemolytic anemia. Cats are more sensitive than dogs.
Don’t give garlic powder, garlic oil, cooked garlic, capsules, or treats and broths that contain it for worms, fleas, “immunity” or appetite. If your cat has already eaten garlic, keep the label or recipe and call your vet. More detail is in our guide on why cats should not eat garlic.
Why Essential Oils and Herbal Dewormers Are Risky
Never use essential oils in shampoo, on the skin, on bedding, or in food or water to deworm a cat. Cats groom constantly, so anything on the coat or paws gets swallowed, and oils can also be inhaled or absorbed through the skin. Cats lack some of the liver enzymes needed to break down many of these compounds.
Branded “natural” dewormers that claim to dehydrate or flush out worms aren’t proven to kill the parasite your cat has, to reach the right part of the gut, or to be safe for kittens and sick cats. If your cat has been exposed to an oil product and is drooling, wobbly, trembling, weak or breathing hard, call your vet or a poison hotline right away: ASPCA Animal Poison Control (888) 426-4435 or Pet Poison Helpline (855) 764-7661 (fees may apply).
Signs Your Cat May Have Worms
Some cats with worms look completely normal. Others show:
- Rice-like tapeworm segments near the tail, in bedding or in the litter box
- Visible worms in vomit or stool
- Vomiting or diarrhea
- Weight loss, or poor growth in kittens
- A bloated or potbellied look, especially in kittens
- Dull coat or poor body condition
- Scooting or licking under the tail
- Pale gums, weakness or black, tarry stool, which can point to hookworms and blood loss
Because these signs overlap with many other problems, from diet changes to infections, it’s worth confirming the cause rather than guessing.
Why a Fecal Test Matters
Roundworms, hookworms, tapeworms, Giardia and coccidia don’t all respond to the same medicine. The Cornell Feline Health Center notes that intestinal parasites often cause vague signs, and diagnosis usually depends on a stool test or identifying the segments you’ve found. Your vet may ask for a fresh sample, sometimes more than one, because some parasites shed eggs or cysts on and off.
Testing tells your vet which drug to use, whether a repeat dose is needed, and whether your other pets should be checked too.
What Vets Use to Deworm Cats
Treatment is chosen by parasite type and your cat’s age, weight and health. Common options include praziquantel for tapeworms, pyrantel for roundworms and hookworms, and fenbendazole for certain other parasites. Many monthly topical products also cover some intestinal worms. These are examples, not a dosing guide: your vet picks the product and dose.
Some products are sold over the counter, but they may not cover the parasite your cat has, and dog or livestock dewormers can be dangerous for cats. Never use a dog parasite product on a cat unless your vet confirms that exact product is cat-safe. For what to expect afterwards, see cat diarrhea after deworming.
Tapeworms Mean Flea Control Too
Cats most often get the common tapeworm by swallowing infected fleas while grooming. Treating the tapeworm without treating the fleas means the worms come back. A tapeworm plan usually pairs a tapeworm medication with reliable, cat-safe flea prevention for every pet in the home. Read more in our cat tapeworm treatment guide.
Safe Home Remedies That Actually Help
Home care can’t kill an active infection, but it does reduce reinfection and protect your household:
- Scoop the litter box daily and wash your hands afterward.
- Wash the litter box regularly, and don’t let it get overcrowded in multi-cat homes.
- Wash bedding and vacuum the places your cat rests.
- Bag and remove stool from the home or yard promptly.
- Keep every pet on vet-recommended flea prevention.
- Limit hunting and avoid feeding raw meat where you can.
- Follow the full deworming schedule, including any repeat dose.
- Collect a fresh stool sample or take clear photos of any worms for your vet.
For a room-by-room approach, use our cat worms cleanup guide.
Can Cat Worms Affect People?
Some feline parasites, including roundworms and hookworms, can infect people, usually through contact with contaminated feces or soil. Children, pregnant people, older adults and anyone with a weakened immune system are at higher risk. Good litter hygiene, handwashing, prompt stool cleanup and routine parasite prevention lower that risk. If a family member has health concerns after exposure, contact a doctor as well as your vet.
When to Call the Vet Urgently
Call promptly if your cat is a kitten, pregnant, elderly or already unwell, or if you notice repeated vomiting, bloody diarrhea, black stool, weakness, dehydration, breathing problems or pale gums. Heavy hookworm or roundworm burdens can make young kittens seriously ill quickly. Heartworm is a separate disease that home remedies neither treat nor prevent; ask your vet about prevention, and see our article on heartworm risk in cats.
Frequently Asked Questions
Can garlic deworm cats?
No. Garlic is toxic to cats and should never be used as a dewormer, flea remedy or supplement.
Do pumpkin seeds, coconut oil or apple cider vinegar kill worms in cats?
Don’t rely on them. None is a dependable treatment for feline parasites, and using them can delay effective care.
Can I put diatomaceous earth in my cat’s food for worms?
No, not unless your vet specifically directs it. It isn’t a substitute for parasite-specific medication, and the dust can irritate your cat’s airways.
Can I buy cat dewormer without a vet?
Some products are available over the counter, but they may not match your cat’s parasite, age, weight or health. Check with your vet first, especially for kittens, pregnant or sick cats, or symptoms that keep coming back.
How can I prevent worms in my cat naturally?
The most effective “natural” plan is prevention: flea control, keeping cats indoors or limiting hunting, clean litter habits and routine fecal checks. When worms are found, use the medication your vet recommends.