Diatomaceous Earth for Horses


Hi! My name is Casie Bazay. I'm a mom, a freelance writer, and a certified equine acupressure practitioner.

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23 Responses

  1. Rebekah says:

    Hi Casie,

    I recently read about someone and their herd of horses and the DE worked for them as for as getting rid of parasites, Food Grade quality of corse.

    So I did a fecal exam for both my horses and they tested positive for Strongless egg counts, one has 1000 and the other 500. It’s been a week and I plan to retest the fecal again within 6 weeks to see results, I really hope this helps.

    Chemical deworming, although works if you do it right, but I also read why deworm a horse if they don’t have worms. So, I never followed what the general public do which is deworm a horse every 3 months or so, that’s barbaric. So when my horses fecal egg count gets to about 1000, that’s when I do a chemical deworm, but this time I’m trying the DE to see if that helps. I would only chemically deworm them twice a year, one in winter and one end of Spring.

    My Mare who is only 5 years old is much healthier then my Gelding who is 13 years old. I have been feeding my Mare since she was 1.5 years old with Garlic and she never contracted worms, was always the eggs, and it’s taken her 6 month to reach only at 500 egg count. My Gelding is doing allot better as this year will be two years that I have had him. His egg counts are becoming less each year with me feeding him Garlic on a daily basis.

  2. Jane Marchant says:

    How much are you feeding per horse per day ?

    • Casie says:

      I feed approximately 1/2 cup a day per horse, but you can feed more. I remember Joe Camp saying he fed a cup or possibly more to certain horses with higher FEC’s.

      • Rebekah says:

        I’m feeding both my horses 1 cup a day and will do this for 4-6 weeks, then will do a fecal count, and if eggs are less than 200 counts, than I will continue but only giving them half cup a day until all egg counts are next to none. For maintenance I will be feeding them 1 cups a week or maybe 2 cups a week.

  3. Is it harmful for the horse’s resporatory system if breathed in?

  4. Holly McKay says:

    I feed DE to my mare, and I feel like it has made a difference to her joint health and overall condition. I wet her feed and mix the DE in with my hand to prevent any DE from getting in her lungs.

  5. Rebekah says:

    Anything with a powder consistency I always add some water but not to much my Mare don’t like mush, as I am feeding them Garlic which is a powder consistency.

  6. Carol Thompson says:

    Hi Cassie,
    Can I ask for your permission to publish some of your articles in our horse club magazine? Full credit of course will be given and a link to your website.

  7. Colleen says:

    Hi, Casie! I have been feeding my 28 yr old mare, Cassie, DE as a dewormer for the last 5+ years and I can attest that it works! I have her fecal tested every 3-4 months and since using the DE she has NEVER tested positive for worms! I am a staunch proponent of natural products for my horse. I have had her for 6+ yrs, she was my first….a senior horse for a senior me!! We are proud to be metal free (no shoes, no bits) & her only health problems were caused by tick bites (Lyme Disease & Anaplasmosis). But she survived both & I strongly believe it’s because her immune system is strong due to natural care. Thank you for your site, I just discovered it & will be visiting it regularly!

  8. Myra says:

    We have fed our horses DE for about 4-5 years now. It works. We haven’t used any chemical dewormers since starting DE. We just add it to their grain/supplements rations almost daily.

    • Casie says:

      That’s great to hear. Thanks for sharing!

    • brittany says:

      how much do you feed daily?

      • Casie says:

        It depends on the size of the horse and the reason for feeding (feed more for higher worm counts), but I feed around 1/4 to 1/2 cup to my 1000 lb. horses.

        • Angie Symonds says:

          Hi I hope this conversation is still ongoing. I have been researching products to help my horse with sweet itch and amongst the ingredients on a couple of these products was DE. Has anyone used it specifically for sweet itch or has it just been used for worming?

  9. Carole Hopkins says:

    Dr Juliet Getty says she has concerns about DE . She says even if it kills the larvae, the little exoskeletons may be harming the delicate lining of the small intestine. She is not in favor of using it. My gut feeling is she may be wright

    • suzanne cook says:

      pick your poison. Chemical wormers HAVE BEEN PROVEN to be toxic, hence the warnings all over the labels. #1 reason I stopped regular use. If a products tells me I can’t get it on my hands, whey the heck would I stuff it in my critters’ mouths? I can guarantee those chemical wormers damage not only your horse’s stomach but also their liver and kidneys.

  10. Traci says:

    I have an EPM horse (she was tested with the spinal tap fluid). I have heard the DE is very good for them, just wondering about feeding amounts and for how long? For example 1 cup for a month and then down to 1/2 cup and use as a permanent feed? Thanks in advance.

    • Casie says:

      I haven’t heard that it’s specifically good for EPM horses, but maybe it is (it has a high mineral content). I would start off with a small amount and the work up to 1/2 cup or so. A cup is a rather large amount to mix in feed (unless you’re splitting it into two feedings).

  11. Kimberly Soule says:

    i have a 10 year old Wild rescue mare, that i have had for 9 years, ended up allergic to Ivermectin last fall (i am not a big fan of chemicals anyway) so this will be the next step for me. Fecal count will be this week as per my vet ( they are so willing to work with the “natural” crazies like me! lol) She likely has Lyme disease too ( i hand picked over 1000 ticks off of her before we dusted her). at her size of 1800lbs i will follow the 1/4-1/2 cup per 1000 and go from there! thank you so much for all of the information that i read. i am sure she will love her increase in mash for this purpose! lol

  12. Lucy Oliver says:

    Discovered DE at a chicken seminar. Was being plagued with chiggers (also known as red mites) and a great chicken instructor recommended DE! I was the victim. Looked like a big-time looser at a prize fight and itched horribly! Would not inflict that on any animal! DE has many uses! Worm your cattle too! Bed bugs where children are present! And much more! Was a bit afraid to use on horses until reading this article! Sounds like a super idea!

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