Should You Be Eating Diatomaceous Earth?

A Green Prophet reader reports that her healer recommends a daily teaspoon of diatomaceous earth (D.E.) to suppress a sudden, uncharacteristic appetite for junk food. 

“D.E. makes me feel full,” she says.   “And it’s supposed to cleanse the intestines.” 

Somewhat repelled, but intrigued, I went on an information quest. What research yielded was this: diatomaceous earth is powdered rock that’s  composed of fossilized silica shells of diatoms, a  species of alga. Diatoms don’t fit neatly into any of the usual categories of  animal, vegetable or mineral, but they are living creatures. Below is a photo, via microscope, of ocean diatoms in between ice crystals in Antartica.

The millennial accumulation of fossilized diatom shells, mixed with natural clays and minerals, formed deposits that are most often found in or near lakes, wetlands and the ocean. Diatom shells are composed of silica (silicon dioxide,) and is a form of sand; dangerous when it’s inhaled. Long-term exposure causes a lung disease, silicosis.

We’re familiar with the use of D.E. as a natural pesticide. The silicon particles have sharp edges that minutely lacerate slugs, snails, and insects such as ants, cockroaches, bed bugs, and fleas. The pests lose moisture through the wounds and dehydrate. 

Farmers mix D.E. with grains in storage, to prevent insect infestation and clumping. Some hold that D.E. helps to de-worm farm animals. D.E. is sometimes used as a soil improver, especially in potted plants such as bonsai.  However mild D.E. pesticides are, they are still regulated in the United States under the Federal Insecticide, Fungicide, and Rodenticide Act and must be registered with the Environmental Protection Agency.

Industry has uses for D.E. too: its abrasive properties are handy in metal polish, water filtration, production of dynamite, toothpaste and even some facial scrubs. I recommend our own safe, natural sugar scrub recipe over commercial products.

Now why are people eating diatomaceous earth? And do studies show any benefit from ingesting it?

There are two types of D.E.: food-grade and non food-grade. The difference is in the content of crystalline vs. amorphous silica dioxide in it, and how finely-ground the powder is. I’m coming to the conclusion that “food-grade” is a misnomer, as there’s no solid evidence that D.E.  contributes nutrition, nor anything to health, that real food doesn’t already.

The long, long list of health benefits attached to eating D.E. will make you dizzy. A daily teaspoon, blended into a smoothie or stirred into juice, is claimed to improve hair, skin, and bones. It’s supposed to detoxify the body by improving digestion, and help absorb nutrients.  Vendors claim that you’ll lose weight and reduce cholesterol levels and blood pressure.  It’ll cure diarrhea and constipation. From eliminating coughs and menopausal symptoms to relieving back pain and insomnia, D.E. is the miracle superfood supplement of the moment.  Some even claim that ingesting D.E. staves off aging and Alzheimer’s.

Oh, please. No studies exist that back up those claims. Websites that extol eating diatomaceous earth publish testimonials, not study results. They usually lead you to a shopping cart. I can understand how D.E. makes you feel full (you must drink a lot of water with it) – which will cut your appetite and lead to weight loss. But so will psyllium seeds. Or eating six small, nutrient-dense meals a day.

Want to detox? Why go with a sharp-edged substance that will scrape your intestinal walls, carrying protective mucous away and leaving you vulnerable to viruses and bacteria? Seen through a microscope, you can appreciate the tiny, sharp protrusions that so efficiently kill slugs and insects. 

Today’s readers are more than familiar with what it takes to detox and live longer: get off cigarettes and excessive alcohol; drink a lot more water; eat lots of salads and cooked vegetables; avoid sugar and red meat; exercise regularly and if possible, in the fresh air. To lower blood pressure (and de-stress), learn to meditate, or learn yoga. Eat high-cocoa content chocolate! If you suspect you’re harboring parasites, like after drinking unsafe water while traveling,  visit to the doctor. 

Use your good judgement with trendy “superfoods” like diatomaceous earth, which isn’t a food at all.

So should you be eating D.E.?

You already know what I think.

Photos via Wikipedia and 




Facebook Comments



Leave a Reply

Your email address will not be published. Required fields are marked *

eleven + seven =