As a pet health expert with extensive experience in veterinary medicine, I'm often asked about the safety of various substances for our beloved pets. One such substance is diatomaceous earth, which has been a topic of interest due to its potential benefits and concerns.

Diatomaceous earth, often abbreviated as DE, is a naturally occurring, soft, and porous sedimentary rock that is made up of the fossilized remains of diatoms, a type of hard-shelled algae. It's been used for a variety of purposes, including as a filtration aid, abrasive, and insecticide. In the context of pet care, it's primarily discussed for its potential to control parasites.

The safety of DE for pets, particularly when ingested, is a nuanced topic. It's important to distinguish between the two main types of diatomaceous earth: food grade and pool grade.
Food grade diatomaceous earth is considered safe for consumption by humans and, by extension, is often recommended for use with pets. It's made from freshwater diatoms and is non-toxic. It's the pool grade, which is designed to be used in swimming pools and contains crystalline silica, that poses a risk if ingested, as it can cause irritation to the digestive system.

When it comes to the use of food grade DE for pets, it's generally recognized as safe for external use to control fleas, ticks, and other external parasites. It works by physically damaging the exoskeletons of insects, leading to their dehydration and death. This mode of action is indeed deadly to insects, yet completely harmless to animals, including dogs, when used topically.

However, the ingestion of DE, even the food grade variety, is a different matter. While it's not considered toxic, there's limited research on the long-term effects of ingesting DE. Some studies suggest that it can aid in digestion by increasing peristalsis and potentially help with the removal of internal parasites due to its abrasive qualities. Yet, others advise caution, noting that inhalation of fine particles can cause respiratory issues, and ingestion could lead to impaction if not properly hydrated.

For internal parasite control, it's always best to consult with a veterinarian before administering any treatment, including DE. Veterinarians can provide guidance based on the specific needs and health of the pet, as well as monitor for any potential adverse effects.

In conclusion, while food grade diatomaceous earth is generally considered safe for external use on pets and may offer benefits in controlling external parasites, its safety for ingestion requires further research and should be approached with caution. Always consult with a pet health professional before using any new treatment method.

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The Benefits Of Diatomaceous Earth For Dogs. Diatomaceous Earth is a dirt cheap way to control external and internal parasites in your dog. It's a non-toxic, safe substance made up from crushed fossils of freshwater organisms and marine life. ... Diatomacous Earth is deadly to any insect yet completely harmless to animals.read more >>