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. 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.

  2. 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

  3. 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

  4. -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.

  5. -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.

  6. -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.

  7. 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

  8. -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

  9. -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

  10. 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!!

  11. 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?

  12. 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.

  13. 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!

  14. Kelsey Kelsey

    Hi, I raise Maine Coons and I'm having trouble with soft to very runny pools of poop. We have done test and one came back as Guardia and we have done the medication 3 times and a 2nd different kind and she still has bloated tummy and pools of I wouldn't even call poop more like slop. We have tried changing her food and we thought yes it's working then it's right can to slop again. Will this De earth help her over come her issue? And she is about 14lbs as she is a breeder, is this safe to give also to pregnant queens when they get the poops as well?
    Thank you,

  15. -Louise's - -Louise's -

    DE is one of the greatest detoxifiers. It eliminates unhealthy bacteria, parasites, fungi, protozoa, endotoxins, pesticides, drug residues, heavy metals and more. Its Molecular and porous structure has the ability to attract and trap heavy metals and toxins. Here is a link with more info.

  16. -Louise's - -Louise's -

    Hi Michael,
    We definitely have something that we do for Coccidia that is all natural and works great. Please give us a call because it would be much easier to go over everything with you that way. 407-688-1026

  17. Michael Michael

    Hi, We just had our 55 Lb English Goldendoodle Bred, and she came home with coccidia, and very runny stools. We have the runny stools corrected, and we took a sample to our vet confirmed coccidia, and they recommended Albon, which has sulfanilamides in it and from my research can cause birth defects, especially clef pallets in pregnant dogs. I explained, again, that she was just bred and that from what I see Albon could cause birth defect in pregnant dogs. So, our vet will be doing an ultra sound to determine if and how pregnant she it. I still do not want to give her anything that may cause issues with her pregnancy. We have 3 female dogs, one nursing puppies, this one who has coccidia, and another female. We have been keeping our just bred female (who has coccidia) away from our other dogs, and clean up after all our dogs, when they poop to prevent spreading this parasite. I started giving all our females 1 TblS of Food Grade D earth and in researching I just ran across your web site. Louiise's, Do you have any advice anything that you can recommend for us.
    Also, we love your site, as we have bookmarked it.

  18. -Louise's - -Louise's -

    Hi Anne,
    You do not need to take a break with DE. You can feed it as long as you want/need to. I would feed it a minimum of 6 months. We also use Vibactra plus and Paxxin from Amber Naturalz for Giardia. I have attached the links for you to look at it but if you want us to ship it to you give us a call (407- 688-1026 ) because our website isn’t set up yet for ordering outside of our immediate area.

  19. Anne Anne

    Hello! We started using DE for our dog that has Giardia--after trying so many other things, and the DE seems to be working so far. His poo is still a bit greenish but we've seen it improve significantly. We are now coming up to 30 days of use. Is it safe to continue for a bit longer or should we stop at the 30 days?

  20. -Louise's - -Louise's -

    Hi Julie,
    Tapeworms look like rice and they can also get them from small rodents/animals like mice, opossums etc. If they ingest contaminated feces or water. Just make sure you are feeding enough so you continue to kill the worms as you go. You can tell if you are feeding too much DE if they get constipated. Please feel free to call us if you need to. Good Luck!

  21. Julie Baldridge Julie Baldridge

    I lost my previous post, so I’m not sure what happened. Thank you for the information. I live in Montana, where flea infestations can happen that are very uncommon. I’ve had dogs and cats for nine years here, and I’ve never seen a single flee. I come from Tennessee, where fleas are abundant, so I am familiar what they look like. I’m surprised that I haven’t seen any fleas. So I’m scratching my head a little here. :-)

    I will do as you suggest and begin mixing more DE into Haley‘s food each day. And I will start giving it to my other cat again.

    Thank you again for the information and for the links. If you have any further information, I am open to suggestions.


  22. -Louise's - -Louise's -

    Hi Julie,
    If she has tapeworms then they usually come from fleas. This means that she will continue to get infested with worms until the fleas are gone. You are getting rid of the worms but she is getting re infested. You have to continually feed the DE until the fleas are gone.

    I would however mix the DE separately each day into there food just to make sure they are getting the correct dosage. When I am dealing with an actual problem I usually double the dosage just to make sure you are feeding enough. You do not need to worry about taking a break with the DE just feed it until you know for sure the fleas are gone. Here are some links to help you with feeding the DE and to get rid of the fleas.

  23. Julie Julie

    Hi. I’ve been mixing food grade DE in my cat’s food since October of 2020, but they haven’t gone away! At first it seemed like maybe they were slowing down. But now they are still there. Her weight seems normal (around 10 pounds), as well as her appetite. I’ve been mixing the DE into the bag of cat food so that it absorbs into the food.

    I have another cat who doesn’t have them...I was giving him DE for most of that time too, just in case. But I recently stopped it with him to give him a break.

    She has tapeworms I believe...white worms that come out of her anus...mainly when she’s relaxed or sleeping.

    Am I just not being aggressive enough with the DE for Hayley?

    Please advise...thank you so much!!


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

    Hi Monika,
    We would be glad to help you but it would be much easier if you would give us a call at the store. 407-688-1026

  25. Monika Monika

    Hello! Could you please help me? My dog have Giardia infections every 3 months. The vets gave him antibiotics for it 6 times so this killed his gut bacteria. Now a year ago I am building his gut back and he is getting better but I think his immune system is still low. But the time between infections is getting longer slowly. It was 5 weeks when he was younger. Is DE powder kills Giardia? He is immune now for the only wormer which kills it (Panacur). Or have you got any other idea? Thank you very much. Best regards.

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

    Hi Jennifer,
    Yes DE takes care of worms in horses. The amount is 2% mixed in their feed. Here is a link with more info

  27. Jennifer Jennifer

    Hi! Does DE help with worms in horses and if so, I’m wondering what the dose is for a 900lb horse ?

  28. -Louise's - -Louise's -

    Hi Brock
    Make sure you are feeding them enough DE. If they are adult cats then I would feed two teaspoons each depending on their weight maybe two heaping. The only problem with feeding them too much is they will get constipated so if they do then just back off a little. Depending on what type of worms they have you may be getting rid of them but they are getting re infested again. If the source of the worms isn’t gone then you want to keep feeding the DE until the source is gone. You can continually feed DE with no breaks.

  29. Brock Brock

    I have been feeding my cats DE since November 27 and I still see some residue of worms in their feces and my cats stomach still looks bloated. My 30 days will be over on December 26. When will I stop seeing residue of worms in my cats feces and when will their stomach return to normal?

  30. -Louise's - -Louise's -

    Hi Chris,
    When you say a little bit every day, make sure it's enough for her body weight. Yes, if you are giving her the correct dosage it will also help with anal glands. If she is experiencing a problem with her anal glands you can also just give her some raw broccoli florets. We recommend not to express them because it's best for them to let their body do it naturally.

  31. Chris Chris

    I have an 8yr old Yorkie and have been giving her D. Earth for over a year. Just a little bit every day and have never seen any worms. Does it help with anal glands. Thanks very interesting.

  32. Stacey Stacey

    Hi, I recently recieved my Diatomaceous Earth. I originally bought it for my dogs who have been having issues because my yard is all dirt and grass doesn't grow. I have several cats most are over 5 lbs except for 2 of them and I recently notice worms. They sometimes eat from each others food dishes whether it is wet or dry food. Whats the best recommendation you have for multiple cats?

  33. Kiana Kiana

    Hi Louise,
    My 2 year old cat ran away for several months & last month she reappeared with 3 kittens in tow!! They had fleas really bad so we treated all of them with an OTC flea killer but now we've noticed that mama cat, Rizzo, has some kind of worms... not sure if it's tapeworm or pin worms... they look like little blobs or bits of rice in her anal area & on the underside of her tail. Because she, the 3 kittens & our small dog all drink from the same water dish (and occasionally sneak each other's dry food as well!) I wondered if it would be ok to mix the DE in their water dishes or if it needs to be added to the dry food? Any help is much appreciated!

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

    Hi Erika,
    Every animals case is individual as to what you may or may not see. A healthy stool is soft with form not hard. Sometimes you will see worms dead/alive and sometimes you may not see anything but they are passing them so don’t worry. The normal dose for most cats is 1 - 2 teaspoons depending on the cats size. We normally try to go on the high end when we are deworming just to make sure we are giving enough. If they get constipated then back off a little because you are giving too much. DE usually kill most worm in 7 - 14 days but we usually recommend to feed for a minimum of 30 days. Give us a call if you have any questions 407-688-1026.

  35. erika erika

    Hi I would just like to ask what to expect during the duration of treatment with DE. Do the cats usually frequent the litter box? Is their stool supposed to be soft or should they be the normal, hard ones? Should I expect the worms that come out with the stool already dead and should I be worried if some are not? I'm on the fourth day of giving them DE and I'm not sure if it's not working or I'm just not giving them enough or if it's just too early to see results yet.

  36. -Louise's - -Louise's -

    Hi Tabitha,
    Yes you can feed it to mom when she is pregnant or nursing. When the babies start eating on their own start feeding it to them as well.

  37. Tabitha Tabitha

    hi, i wanted to know can i use Food Grade De on a cat we took in because she was pregnant, which she just gave birth this Saturday, at 7 am. I did not give her food grade de while she was pregnant, but now that she is nursing i wanted to know would it be ok to give to mom now? i was researching but was still not sure, because some say yes to give to mom now and when the kittens start eating solid food then give to them, while some have said not to give while nursing. Please help would greatly appreciate it.

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

    Hi Brooke,
    It can be worms but it can also be so many other things like thyroid, heart or kidneys. We would take him to the veterinarian to do blood work and to get a diagnosis and then go from there. Please feel free to give us a call when you find out.

  39. Brooke Brooke

    Hello, we have an adult cat that has recently lost quite a bit of weight and has more “pronounced” breathing. Like it looks as though he is purring but is just breathing. Our guess is that he has worms, I have not wormed him chemically, last time
    I did he got quite sick. We started him on De yesterday. Do you have any other recommendations? Do you think this sounds like worms, or could it be something else? Thanks for your time

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

    Hi Caroline,
    The DE will definitely not hurt and yes I would feed it (1 Tbsp daily - 1 meal) but it may or may not get rid of the coccidia. When we have coccidia we recommend Kochi free, Peritan FP and Paxxin from Amber Naturalz. Here are the links

    If you need to go over this with us or need us to ship it to you give us a call 407-688-1026

  41. Caroline Caroline

    My 4 month old, 30lb husky has coccidia. Her bowel movements are normal and she has no symptoms. The vet wants to give her Baycox. I have been feeding her 2 tsp DE daily for 4 days. Will DE get rid of coccidia? Am I giving her enough? Thanks

  42. Dienne Dienne

    I have a 100+ lb mastiff with Giardia and I’m wanting to give him DE. Everywhere I search for dosage only states 2 tablespoons based on his weight daily with food. He is fed 4 smaller meals per day to heal his gut as he became quickly malnourished because his last vet failed to tell us he had it. Do I split the dosage between the four meals or is it given in one dose? If one dose, does time of day make a difference?

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

    Hi Adrienne,
    We feed DE continuously to our goat and cows and they are worm free. We have never had to deal with Barber Pole worms so I think it should work but I would definitely have them tested along the way to make sure you are feeding enough or that it is taking care of them. Keep in mind that if you have them in your environment they will keep getting re infested until you get them out of your environment. This is why we just feed continuously.

  44. -Louise's - -Louise's -

    HI Katie,
    No, it doesn’t have to be fed in wet food it will adhere to the dry. It’s usually just easier in wet food because it is a dry powder and some cats wont eat it that way.

  45. katie katie

    Hi we have a 15/16 yr old cat. Last 2 summers she has started to lay on our deck as she wasnt an outdoor cat before. This summer she has started to wander around the yard and have noticed a flea and looked like she has pin worms in one bowel movement. I fed it to her and she got a bit mucusy mouth. Is it suppose to be in wet food or water? My cat refuses all wet food and only eats dry. Thanks

  46. -Louise's - -Louise's -

    Hi Rachel,
    I would feed him a heaping tablespoon per day. Yes, it is also good to spread it in your yard. For giardia we also recommend Vibactra Plus and Paxxin from Amber Naturalz. Here are the links

    Feel free to give us a call with any questions 407-688-1026. Also, right now our website is just set up for local ordering so if you are not local then just give us a call to place an order.

  47. rachel rachel

    Hi I have a 10month old pitbull puppy that is about 46 47 pounds. He has just been diagnosed with giardia. He had 3 packets of panacur and now he is on the rest of his metro pill. I ordered DE - how much should I give him everyday and should i sprinkle in the yard? I just want him to be better - He just went poop this morning and its still looks a little soft to me and has the weird color. I also saw a white thing in it. And he does not have much of an appetite. :( help/

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