Key Takeaways
- Diatomaceous earth is fossilized algae powder that gives the body natural silica in a plain form.
- Food grade powder is the form people use in water, gardens and household areas.
- Dry powder kills many crawling insects by damaging their waxy coat and pulling moisture away.
- People use small amounts for hair, nails, skin, gut care and household cleanup.
- Use food grade powder only, store it dry and keep the dust out of your lungs.
Diatomaceous Earth Basics
Natural Silica Powder
Diatomaceous earth comes from diatoms. Diatoms are tiny algae with hard shells made from silica.
Old layers of these shells form soft mineral deposits. Those deposits are mined and ground into powder.
The powder feels light in your hand. Under a microscope, it has rough edges and tiny holes. It holds moisture, scrubs lightly and damages the waxy coat on crawling insects.
People use food grade diatomaceous earth because it has one ingredient. Mix small amounts into water.
Dust it lightly where insects travel. Use it in dry household areas that hold odor or dampness (1, 2).
Food Grade Powder
Food grade powder is the form for daily home use. Use it in water. Use it around dry garden edges. Use it in household areas where pests travel.
Pool grade powder belongs in pool filters. Industrial powder belongs in filter systems. Daily use needs food grade powder.
Check the label before buying. The label should say food grade. The ingredient list should say diatomaceous earth.
Main Uses
Use diatomaceous earth on dry surfaces. Put a light dusting near cracks, baseboards and entry points.
A thin layer gives insects contact with the powder. Heavy piles waste powder and raise dust. Wet powder clumps. Let the area dry before adding more powder.
Silica & Tissue
Hair Skin Nails
Diatomaceous earth gives you silica. Hair, nails and skin need minerals. They also need protein, animal fat and fat soluble nutrients.
Silicon is linked with collagen, bone and connective tissue in human nutrition research (3, 4).
Hair grows from the follicle. Nails grow from the root. Skin renews in layers. Give the body steady supply and look for changes over weeks.
Connective Tissue
Tendons, ligaments and cartilage need repair every day. Silica belongs in the mineral supply that helps the body maintain these tissues.
A controlled human study used choline stabilized orthosilicic acid for twenty weeks. Women had better skin surface and less brittle hair after the study period (5).
Diatomaceous earth gives silica in a plain mineral powder. It has no sweetener, dye or synthetic vitamin blend.
Diatomaceous Earth Needs Product Caution
Only food grade diatomaceous earth belongs near food use.
Internal Use
Small Amounts
Mix food grade diatomaceous earth into water. Start with one eighth teaspoon in a full glass. Stir well and drink before the powder settles.
Follow with more water. Keep the container sealed and dry.
Take it away from supplements. The powder can bind material in the gut. Take magnesium and trace minerals a different time at least two hours away.
Gut Use
Diatomaceous earth has a long folk use in gut care. People use it because it is mineral based and absorbent.
Small amounts are enough. Large amounts can dry the mouth or irritate the throat. Use less if stool quality gets worse.
Patent driven health culture ignores many plain tools because nobody can turn them into high margin drugs. Daily use comes down to product quality, amount and clean handling.
Lipid Handling
A small human study used oral diatomaceous earth for twelve weeks in people with moderately high cholesterol.
Total cholesterol, LDL cholesterol and triglycerides fell during use. HDL cholesterol rose after the use period ended (7).
A 2025 study found that food grade diatomaceous earth supplied bioavailable silicon in rats.
The same study found a lower triglyceride rise after feeding and less intestinal fat absorption (8).
Food With Minerals
Minerals work better when the body is well fed. Tissue needs complete protein, animal fat and fat soluble nutrients.
Eggs with butter and liver give complete protein, retinol and choline. Those foods give deeper tissue nutrition than powder alone.
Diatomaceous earth adds silica. Food supplies the main building blocks.
Use vs Skip
| Use | Skip |
|---|---|
| Food grade only | Pool grade product |
| Tiny first dose | Breathing dust |
| Away from other products | Large first dose |
| Watch digestion | Ignoring constipation |
Home & Garden
Crawling Insects
Diatomaceous earth kills many crawling insects by damaging their waxy outer coat. The powder pulls oil from the surface. The insect loses moisture and dies.
This action comes from contact. A dry dusting can help with ants, fleas and roaches when the powder touches the insect (6).
Put the powder where insects walk. Use a thin line. Keep it dry.
Odor Moisture Grit
Diatomaceous earth absorbs moisture. Use it near shoes, trash cans and litter edges. The powder has mild grit. Use it for cleaning or skin scrubs with light pressure.
Keep dust low. Put the powder on the surface and wipe spills with a damp cloth.
Garden Use
Use diatomaceous earth in dry garden areas. Place it around stems and soil edges where insects crawl.
Keep it away from flowers where bees land. Use it low on the soil. Rain washes the powder down. Wait for the soil to dry before adding more.
Use Check
Clean Handling
Dust Control
Keep fine dust out of your lungs. Pour slowly. Keep your face away from the scoop.
Use a damp cloth for spills. Dry sweeping puts powder into the air. A sealed jar is cleaner than a loose bag.
Use the powder where it belongs. Keep it in water, on dry surfaces or inside the container.
Product Choice
Buy plain food grade diatomaceous earth. Store it in a dry sealed container. Keep it away from children and pets.
Use pool grade powder only in pool filters. Use industrial powder only for industrial work. Daily home use needs food grade powder.
Small amounts do the job. Thin layers work on surfaces. Tiny amounts work in water. Clean use keeps the powder useful.
For any health concerns or questions about a medical condition, get guidance from a physician or another appropriately trained clinician. Before changing your diet, supplements, or health routine, talk with a licensed healthcare professional.
Suggested Posts
Evidence Limits
Research
Wellness Mama. 2018. 10 Amazing Uses for Diatomaceous Earth Around the Home. Wellness Mama.
Axe, J. 2024. Diatomaceous Earth Benefits, Uses and Side Effects. Dr. Axe.
Jugdaohsingh, R. 2007. Silicon and Bone Health. Journal of Nutrition Health and Aging. PMID 17435952.
Price, C. T. et al. 2013. Silicon A Review of Its Potential Role in the Prevention and Treatment of Postmenopausal Osteoporosis. International Journal of Endocrinology.
Barel, A. et al. 2005. Effect of Oral Intake of Choline Stabilized Orthosilicic Acid on Skin, Nails and Hair in Women With Photodamaged Skin. Archives of Dermatological Research. PMID 16205932.
National Pesticide Information Center. 2023. Diatomaceous Earth. Oregon State University.
Wachter, H. et al. 1998. Diatomaceous Earth Lowers Blood Cholesterol Concentrations. European Journal of Medical Research. PMID 9533930.
Redondo Castillejo, R. et al. 2025. Diatomaceous Earth Supplementation as a Bioavailable Silicon Source Modulates Postprandial Lipid Metabolism in Healthy Female Rats. Nutrients. PMID 40806037.
Sadowska, A. et al. 2020. Sources, Bioavailability and Safety of Silicon Derived from Foods and Other Sources Added for Nutritional Purposes in Food Supplements and Functional Foods. Applied Sciences.
Marion Institute. The Super Properties of Diatomaceous Earth. Marion Institute.
Mama Jean’s Natural Market. 2019. Good Gracious Its Diatomaceous. Mama Jean’s Natural Market.
Dicalite Management Group. 2017. Is Consuming Diatomaceous Earth Good For Your Health. Dicalite.
Earthworks Health. Food Grade Diatomaceous Earth Uses. Earthworks Health.
Global Healing. Diatomaceous Earth Benefits and Uses. Global Healing.
Organic Lifestyle Magazine. Diatomaceous Earth Health Benefits and Uses. Organic Lifestyle Magazine.
Sripanyakorn, S. et al. (2009) The comparative absorption of silicon from different foods and food supplements. British Journal of Nutrition, 102(6), 825–834. Available at: https://pmc.ncbi.nlm.nih.gov/articles/
Merget, R. et al. (2002) Health hazards due to the inhalation of amorphous silica. Archives of Toxicology, 75(11–12), 625–634. Available at: https://pubmed.ncbi.nlm.nih.gov/
Spector, T.D. et al. (2008) Choline stabilized orthosilicic acid supplementation as an adjunct to calcium and vitamin D3 stimulates markers of bone formation in osteopenic females a randomized placebo controlled trial. BMC Musculoskeletal Disorders, 9, 85. Available at: https://pubmed.ncbi.nlm.nih.gov/
Boqué, N. et al. (2021) Relative absorption of silicon from different formulations of dietary supplements a pilot randomized double blind crossover post prandial study. Scientific Reports, 11(1), 16479. Available at: https://pmc.ncbi.nlm.nih.gov/
Bennett, D.C. et al. (2011) Effect of diatomaceous earth on parasite load egg production and egg quality of hens in free range. Poultry Science, 90(7), 1416–1426. Available at: https://pubmed.ncbi.nlm.nih.gov/
WebMD (n.d.) Diatomaceous Earth Health Benefits and Uses. Available at: https://www.webmd.com/
Pritchard, A. and Nielsen, B.D. (2024) Silicon Supplementation for Bone Health An Umbrella Review Attempting to Translate from Animals to Humans. Nutrients, 16(3), 339.
Wickett, R.R. et al. (2007) Effect of oral intake of choline stabilized orthosilicic acid on hair tensile strength and morphology in women with fine hair. Archives of Dermatological Research, 299(10), 499–505.
Geusens, P. et al. (2017) A 12 week randomized double blind placebo controlled trial with choline stabilized orthosilicic acid in patients with symptomatic knee osteoarthritis. BMC Musculoskeletal Disorders, 18(1), 2.
Marcowycz, A. et al. (2015) Digestive absorption of silicon supplemented as orthosilicic acid vanillin complex. Molecular Nutrition and Food Research, 59(8), 1584–1589.
Li, Z. et al. (2010) Absorption of silicon from artesian aquifer water and its impact on bone health in postmenopausal women a 12 week pilot study. Nutrition Journal, 9, 44.
Macdonald, H.M. et al. (2012) Dietary silicon interacts with oestrogen to influence bone health Evidence from the Aberdeen Prospective Osteoporosis Screening Study. Bone, 50(3), 681–687.