How to De-Worm Your Pet with Food Grade Diatomaceous Earth

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How to De-Worm Your Pet with Food  Grade Diatomaceous Earth

Are you dealing with worms but don't want to use the chemicals to deworm your pet? And now you just don't know what else to do? Did you know that 85 to 95% of the human population also has worms which is a major contributor to disease and illness.

Are you dealing with worms but don't want to use the chemicals to deworm your pet? And now you just don't know what else to do? Did you know that 85 to 95% of the human population also has worms which is a major contributor to disease and illness. We only feed our pets what we would eat ourselves so why would we give them a chemical that we wouldn't take ourselves? That's why we feed Food Grade Diatomaceous Earth.  We give it to all our animals and we even take it ourselves.


What is Diatomaceous Earth?


Diatomaceous earth (DE) is the remains of microscopic one-celled plants (phytoplankton) called diatoms that lived in the oceans and lakes that once covered the western part of the US and other parts of the world. These deposits are mined from underwater beds or from ancient dried lake bottoms thousands of years old. This means, diatomaceous earth has an unlimited shelf life provided you keep it dry. Our diatomaceous earth is organic OMRI listed Codex Food Chemical Grade. It is a non-treated, non-calcined fresh water Diatomaceous Earth. It is mined, crushed, sifted, bagged and pure white in color. It contains less than .5% silicon. There are food grade diatomaceous earth products that are yellow or tan in color which indicates a higher iron content. Those which are gray in color contain more clay. It is very important to only obtain food grade diatomaceous earth to use in and around your household.

As we’ve mentioned this supplement in our previous post for ridding your life of fleas this is how we use it internally. When food grade diatomaceous earth is fed in adequate daily amounts, it eliminates all intestinal worms and parasites. This helps the human or animal better absorb the nutrients from the food they eat, which in turn benefits them as a whole! De actually rids the body of roundworms, whipworms, pinworms, and hookworms within 7 days of being fed daily. But to be most effective, food grade diatomaceous earth must be fed long enough to catch all newly hatching eggs or cycling of the worms through the lungs and back to the stomach as De does not kill the eggs. A minimum of 60 days is suggested for most worms, 90 days is advised for lungworms and even sometimes double the recommended dose. Just remember, DE has to come in contact with the worm or parasite to kill it within 24 to 72 hours. Once you start deworming with DE you don’t want to stop or take any breaks otherwise the infestation of dead dying worms which emit bacteria and toxins can cause a toxic overload, which can make animals or people sicker. Really, you can feed too little, but you can't feed too much! In most cases the way you can tell if your dosing is a little too high would be if there is any constipation!


The dosing chart is as follows:


Kittens - 1/2 teaspoon

Cats - 1 teaspoon

Puppies - 1/2 to 1 tsp.

Dogs under 35 lbs. - 1 teaspoon

Dogs over 35 lbs. - 1 tablespoon

Dogs over 100 lbs. - 2 tablespoons

Cattle, Dairy Cows, & Hogs - 2% of dry feed ration

Chickens - 5% in feed

Goats, Sheep, Alpacas, & Llamas - 2% in grain

Zoo animals - 2% in daily feed

*Humans - 1 - 3 heaping tablespoon daily


We recommend starting slow and increasing as desired, after you are certain you aren't having any heavy detox effects. Because DE is a safe non-toxic natural dewormer, with no chemicals to it, worms can't be immune to it!


Whether it's for you, your pets, or even your home DE has a wide variety of benefits! For one it can help to boost and build immune systems which keeps your pets happy and healthy with the added bonus of a soft and shiny coat! It’s also used to detox any heavy metals out of the blood and even things like e coli and other harmful bacterias and viruses! In humans it's used a lot to stabilize blood sugar levels and lower cholesterol and blood pressure levels! With over 15 trace minerals in its makeup DE is great for everyone!


Diatomaceous earth has so many more benefits than just deworming!

But more importantly the benefits of DE mean reduction in vet bills and disease! All in all you and your pets will have a much healthier life!

Buy Food Grade Diatomaceous Earth


  1. Suzanne Suzanne

    I have a feral/stray 5 months..he had fleas..they back again.I put topical drops frontline gold, first dose worked.second..did not. Put Seresto collar on him. Nothing! I vacuum everyday was, dry all bedding, dust..just got food grade diatomaceous and put it on him..can I feed it to him to help with flea control and this how it works? Hes 6 pounds, 1/2 tsp. If I'm reading correctly.

  2. -Louise's - -Louise's -

    Hi Christine,
    Diatomaceous Earth is meant to be fed daily. The recommended dosing is 2% mixed into their feed (approx 1 cup per horse per day). The easiest way to ensure they are getting the correct amount is to mix it either into some feed or some kind of a treat once per day. You can also try to put it on the grass or hay and see if they eat it that way.

  3. Christine Robinson Christine Robinson

    I’d like some advice on the quantity of DE for worming my horse’s. They are at grass and don’t need daily feeding. Can a monthly or two monthly amount be given or does it need to be daily? Amount per body weight would be of use. Many thanks.

  4. -Louise's - -Louise's -

    Hi Artemis
    Feeding DE will not hurt them at all so just to make sure they do not have worms I would go ahead and feed it. Since they go outside I would make that a normal part of their diet. You just have to mix 1-2 teaspoons in their wet food once per day. Yes, worms can make them hungry but if you are only doing a small (3oz can) and only sometimes kibble in the morning then you may not be feeding them enough food. Cats will sleep most of the day that is normal, most cats sleep 12 - 16 hours per day. I have attached a couple of links to help you out.

  5. -Louise's - -Louise's -

    Hi Nicki,
    1 Tbsp is too much for a cat, you only need 1-2 teaspoons. Please refer to the blog for proper dosing. I have also attached another link for feeding DE

  6. Artemis Artemis

    My cat is about 5 yes old and approx 7 lbs,the other one is about 8 yes and a little over 10 lbs . Lately the have both been constantly hungry they each get a full small can of wet food at night sometimes kibbles in morning . Or when they seem hungry .enough to eat it . I suspect they have worms is that a very common symptom . They go to bathroom outside so I cannot check their stool. They both sleep ALOT , but it is extremely warm climate here . I often find them laying on bathroom floor to get cool . I honestly just do not have the money to take to vet . I surely would if I could . I am struggling to make ends meet as it is .
    Thank you for your time

  7. Nicki Bernardo Nicki Bernardo

    So my cat has tapeworms, and ive been giving my cat DE for 1 days but he seems to be almost sick! Is that normal! I have him only 1 tbsp

  8. Haley Haley

    Hello! Does anyone know where I can find some research studies on the science of how this works?

    I recently found out about diatomaceous earth and I am just very interested and fascinated by it

  9. -Louise's - -Louise's -

    Hi Star,
    Depending on the situation you would use it until the problem is gone. The DE will dry out the skin so we recommend to add some oils to there diet to help combat the dryness and once you are done using the DE it should get better. For mange there are more effective solutions that we recommend so just give us a call and we would be happy to help. 407-688-1026

  10. Star Star

    How long should you apply for external parasites possible mange? I noticed his hair has a lot of flakes? Thanks

  11. -Louise's - -Louise's -

    Hi Kristina,
    Sorry for the delay in answering your question, somehow we missed it. Yes, definitely keep feeding it because it is working. We usually feed it for a good 6 months on new kittens just to give them a good start. Also, if there is an infestation (source of worms) like fleas then you have to feed it until the source is gone because they are going to continue to get re infested.
    Here are the links to internal and external application.

  12. -Louise's - -Louise's -

    Hi Jackie,
    I would follow the guideline for chickens which is 5% mixed into their feed. As long as they are getting the adequate amount that should take care of the worms.
    Here is the link for internal consumption

  13. Jackie Greenough Jackie Greenough

    I see nothing here on Pigeons. I have been adding diatomaceous earth mixed in their feed on a daily basis. Will this be enough to not have to use a de-wormer? I have not noticed any worms, but so many fanciers worm on a regular basis. I have a loft with about 40 birds and have never wormed them.

  14. -Louise's - -Louise's -

    Hello Laura,
    Yes you can add DE to wet food to eliminate intestinal parasites.
    Please refer to the link below for the feeding guidelines.

  15. Laura Laura

    Hi I’ve read that DE has to be dry in order to be effective. Can I add DE to wet dog food to eliminate intestinal parasites?

  16. Kristina Beck Kristina Beck

    I just adopted a kitten and the kitten had diarrhea and a bloated round belly. I have been giving him DE for 9 days now. His bloating went down and diarrhea is gone however last night I seen a worm on his tail it was still alive. Should I keep giving my cats and us humans DE? I know its helping with my digestive system since I am having regular bowel movement's and its definitely helping the kitten. I just want to be sure all worms are gone.

  17. -Louise's - -Louise's -

    Hi Kathryn
    You can feed Food Grade Diatomaceous Earth continually with no breaks. Feeding it to her will not help with her biting her tail unless it is anal gland related. Give us a call and we can go over a few things with you. Please refer to the link below for the feeding guidelines.

  18. Kathryn Kathryn

    I have a 5 month old yorkie who weighs 3 lbs. 12 oz. She has been biting her tail since I got her. Would it hurt to give her food grade DE everyday for the rest of her life? How much should I give this size of puppy?

  19. -Louise's - -Louise's -

    Hi Marg,
    You can mix it in their dry and most of it will adhere to the food just fine. If you actually have a problem going on then I wouldn’t do it that way because you want to make sure that they are getting the correct amount. We personally like to add it into there food daily because then you know that they are getting the correct amount.

  20. Marg Marg

    I saw somewhere to add it dry and mix it in with the bulk dry kibble for cats and dogs. Is this ok and will it work?

  21. -Louise's - -Louise's -

    Hi Arifa,
    It doesn’t matter how you feed it, you just want to make sure you are feeding enough. It does not have to be on an empty stomach, I just add it to their food once per day. The problem you are having is it sounds like he is getting re infested with tapeworms. Tapeworms usually come from fleas so he will continue to have tapeworms until you get rid of the fleas. You are killing the tapeworms from him he just keeps getting more by ingesting more fleas. Since there is an infestation I would up him to two tablespoons per day in one feeding just to make sure you are getting them. Also, once you know the fleas are gone I would feed it for another 30 days just to ensure they are all gone.

  22. Arifa Arifa

    Hi Louise,
    I fed human food grade DE to my pup with tapeworms for over a month with no effect. I was giving him a tablespoon in his food every day (He's a 50 lb Aussie). Then I read somewhere that it's best on an empty stomach, so I mixed it with water and a dehydrated turkey bone broth (yum) before his meals. Even that had no effect. Now I'm wondering if it's supposed to be given dry. I've been careful to mix it with water because I don't want my pup to inhale the powder while he is eating. What would you suggest?

  23. -Louise's - -Louise's -

    Hi Andy,
    Feeding DE will not dry out their skin but using it topically will because it is a drying agent. Give us a call and we can go over a few things with you. 407-688-1026

  24. -Louise's - -Louise's -

    Hi Cyn,
    Yes, DE does help. We also use Amber Naturalz Vibactra plus and Amber Naturalz Kitty DT for Giardia. Here are the links

  25. -Louise's - -Louise's -

    Hi Andrea,
    For internal, you can stop immediately. You do not need to ween off. You can also continue to feed DE to them with no breaks, it has many health benefits.

  26. -Louise's - -Louise's -

    Hi Emily,
    Give us a call and we can go over a few things with you. It would be a lot easier. Thank you 407-688-1026

  27. Andy Andy

    Hi:) I have given my dog DE and I notice her skin starts to get dry and flaky. Is this normal? What should I do for it?

  28. Cyn Cyn

    Help! I have about 40 rescued cats all ages and one tested positive for GIARDIA. Can DE help? Thank you!

  29. Andrea Andrea

    Louise’s, re: “ Thank you again for the great info. For my dogs, Upon nearing the 60 day (to catch the hatched eggs...) do we taper off or can we stop clean?”
    This is for internal parasites. Sorry, I didn’t mention that. My dogs are currently taking DE w/their morning food. I see it’s suggested a minimum of 30 days, 60 days is better & 90 will ensure all cycles will be destroyed. So, when it’s time to end, does one ween off or can we stop the DE immediately?

  30. Emily Emily

    Hi! My little kitten has been struggling with Giardia for 2 months and I'm desperate to clear it for him. He has an operation coming up to be neutered - do you think I should hold off starting on the DE until after that? Could it cause any complications because of the release of toxins as parasites die? I am worried about that and if it might make him more unwell for a while.

  31. -Louise's - -Louise's -

    Hi Andrea,
    When dealing with fleas in your home, you can have multiple egg cycles and hatchings so there is not a set time frame. We always say when you are not finding any more fleas and you think they are all gone put more down just to be sure because if you miss one cycle you will end up starting all over.

  32. Macy Macy

    Is this a daily dose? My dog is around 135 pounds so would you say 2 tablespoons once daily.

  33. Andrea Andrea

    Thank you again for the great info. For my dogs, Upon nearing the 60 day (to catch the hatched eggs...) do we taper off or can we stop clean?

  34. -Louise's - -Louise's -

    Hi Diane
    I would feed her a heaping teaspoon. DE will take care of most worms and parasites in 7 to14 days but I would feed it longer since she is outside. I personally would feed it to her continually with no breaks since she is a stray and will probably have reoccurring contact.

  35. Andrea Andrea

    Just following up on my question re: feeding DE for parasites daily dose, since my pets eat twice a day. Can the "Daily Dose" be split b/t the meals or is the daily dose given 100% at one feeding, the other feeding w/none? Thank you in advance.

  36. Andrea Andrea

    Great info, thank you. One question. There seems to be no mention of whether the daily dosage can be split at each feeding or must be all at once, skipping 2md feeding. Please advise

  37. Diane Diane

    The stray cat I feed was gone the whole winter came back very skinny. My question is how much would I feed it I think it is about 7-9 lbs and how long I have read that 60 days is long enough?I was feeding it last year 1/2 teaspoon once a day in wet food but it had more weight. I just do not want to give it to much because I will not know if it is constipated or not...How long how much? Please reply

  38. -Louise's - -Louise's -

    Hi Camelia,
    Yes, it would be fine for bunnies. I would feed her 1/2 to 1 teaspoons per day (one feeding). I always want to make sure I’m giving enough when I know I have a problem so I usually try to double the normal recommended dose and watch for constipation which is the only main side effect of giving too much. If she does get constipated just back down a little.

  39. -Louise's - -Louise's -

    Hi Chris,
    I would feed it to the mom and the puppies will get it through her milk. Once the puppies are starting to eat on their own mix it in their food. They only need the daily recommended dose once per day. I have attached a link with the dosage chart.

  40. -Louise's - -Louise's -

    Hi Dexter
    The best way for you to do it is to just mix it in their food daily. I would try to put as much as I could where they will all still eat , that way hopefully they are getting enough. An average cat only needs 1 to 2 teaspoons per day so it’s not a lot.

  41. jamie jamie

    Dexter what is wrong with you why would you feed and care for feral cats that kill a huge number of native birds and other small animals

  42. -Louise's - -Louise's -

    Hi Noreen,
    Since she is a feral, she will probably always have issues with worms and fleas so I would feed her the DE continually with no breaks and that will take care of any worms she may get. You can also use the DE externally to get rid of fleas in the area. I would also recommend Flea Free which is a supplement/preventative that you add to her food to prevent fleas from feeding on her. Here are some links

  43. -Louise's - -Louise's -

    Hi Kelsey,
    The DE definitely wouldn’t hurt, it would only help her and yes it is safe for ones that are pregnant and for babies. We have a couple of other products that I would also recommend for her, just give us a call and we can go over it. 407-688-1026

  44. Camelia Camelia

    Hi Louise,

    can the Food Grade Diatomaceous Earth be used to take care of internal parasites in pet bunnies?
    Her tests came negative but her cat-brothers have parasites. So I am afraid that she has them too, which explains her digestive problems. She is a "free" bunny so she shares the house with the cats (she is the boss).
    I'll treat the cats with DE too.
    Finally, if it can be used in bunnies, what would be the dosage for a 6 lb bun?
    Thank you very much for sharing your knowledge!!

  45. Chris Chris

    I have a litter of 2 week old puppies that have worms. Would it be safe to mix DE in raw goats milk and bottle feed the puppies? If so, how many times a day?

  46. Dexter Dexter

    My wife and I care for a large group of feral cats. We aren’t able to catch them all but most will come to eat at dinner time. Is there anyway I can mix DE in large amounts with their food and it be effective? We don’t ration how much each cat gets. They just come and go when they’re hungry.

  47. Noreen Noreen

    Hi! I have an outdoor feral that I’ve started caring for, and she eats CONSTANTLY. There’s no way to get her to a vet, so I started giving her DE in her food. I’m reading here though that she’ll keep having issues with worms if she’s not treated for fleas- should I treat her for fleas too?
    Thank you!

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