Exploring the Health Benefits of Diatomaceous Earth: Detox, Bones, Cholesterol, and More
A comprehensive, evidence-based guide to diatomaceous earth, its claimed health benefits, safety profile, and practical uses.
Exploring the Health Benefits of Diatomaceous Earth
Diatomaceous earth, a naturally occurring silica-rich powder, has surged in popularity as a multipurpose remedy—promoted for detox, cholesterol support, bone and skin health, parasite control, and more. But what does current scientific evidence say about these claims? This article offers an in-depth, balanced investigation of diatomaceous earth’s potential health benefits, supported by research where available, and important considerations for safe use.
Table of Contents
- Introduction: What Is Diatomaceous Earth?
- Nutritional Composition and Types
- Claimed Health Benefits of Diatomaceous Earth
- Scientific Evidence: What Do Studies Show?
- Detoxification and Parasite Control
- Support for Bones, Joints, and Aging
- Cholesterol and Heart Health
- Skin, Hair, Nails, and Dental Health
- Uses in Animals and Agriculture
- Safety Considerations and Side Effects
- How to Use Diatomaceous Earth
- Frequently Asked Questions (FAQs)
- Conclusion: Is Diatomaceous Earth Worth Trying?
Introduction: What Is Diatomaceous Earth?
Diatomaceous earth (DE) is a naturally occurring soft, siliceous sedimentary rock that is easily crumbled into a fine white or off-white powder. The powder consists of fossilized remains of diatoms, a type of hard-shelled algae. Rich in amorphous silica, diatomaceous earth has been used for centuries for industrial, household, and agricultural purposes. Recently, food-grade DE has gained popularity as a dietary supplement, with proponents attributing a range of health benefits to its unique structure and chemistry.
Nutritional Composition and Types
Diatomaceous earth is composed mainly of silicon dioxide (SiO2), with other trace minerals such as magnesium, calcium, sodium, iron, and various minerals. The powder’s microscopic structure is highly porous and abrasive, features which underlie many of its uses for filtration, cleaning, and pest control.
- Food-grade diatomaceous earth: Contains 85-95% amorphous silica; approved for limited use in food processing and as a supplement. Suitable for human and animal consumption in low doses.
- Filter-grade or industrial DE: Contains higher levels of crystalline silica. Not safe for ingestion or household use due to risks of lung damage.
Claimed Health Benefits of Diatomaceous Earth
Advocates of diatomaceous earth suggest a broad array of health benefits, driven primarily by its detoxifying properties and high silica content. Commonly cited benefits include:
- Detoxification and heavy metal removal
- Digestive health and parasite cleansing
- Improved bone and joint strength
- Enhanced skin, hair, and nail growth
- Cholesterol reduction and heart health
- Regulation of blood pressure
- Boosted immune response
While these claims are widespread, their scientific foundation varies, and not all have been properly validated in human studies.
Scientific Evidence: What Do Studies Show?
The evidence supporting diatomaceous earth’s health benefits is limited, with only a handful of human studies and several animal or in vitro investigations. Many benefits remain largely anecdotal or are extrapolated from the known effects of dietary silicon or from agricultural research. However, some peer-reviewed research does exist, particularly in areas like lipid metabolism and bone health.
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Detoxification and Parasite Control
One of the most publicized uses for diatomaceous earth is as a detoxifier. The powder’s high surface area and slightly abrasive, absorbent properties allegedly allow it to:
- Bind toxins, heavy metals, and harmful substances in the digestive tract, supporting their excretion.
- Attract and remove free radicals, possibly acting as a mild antioxidant.
A study cited in the American Journal of Clinical Nutrition found that dietary silica (the main component of DE) might help eliminate heavy metals like aluminum, contributing to detoxification processes in the body. However, direct evidence from large human DE supplementation trials is sparse.
DE also appears to kill or inhibit parasites in animals, due to its capacity to desiccate and damage insect exoskeletons and cell membranes. A 2011 study in poultry showed significantly lower parasite loads in egg-laying hens given DE, with improved health and egg quality as an added benefit. While such effects are recognized in veterinary contexts, clinical data for internal parasite detox in humans is lacking.
Support for Bones, Joints, and Aging
The silica content in diatomaceous earth is suggested to play a role in bone formation, collagen synthesis, and joint integrity. Since silicon is required for collagen production, DE supplementation may support connective tissue, cartilage, and bone mineralization. A 2007 review in the Journal of Nutrition Health and Aging found dietary silicon to be positively associated with bone mineral density, particularly in postmenopausal women.
Potential benefits:
- May help prevent low bone mass/osteoporosis
- Supports cartilage, joint formation, and healthy ligaments
- Potential role in anti-aging, by contributing to skin elasticity and resilience
It’s important to note that the evidence is indirect; supplementation trials specifically with diatomaceous earth in humans are limited, and more research is needed to clarify these effects.
Cholesterol and Heart Health
Perhaps the most notable published human study on diatomaceous earth dates to 1998, in which nineteen adults with moderately high cholesterol took 250 mg of DE three times daily for eight weeks. Results showed:
- Significant reductions in total cholesterol, LDL (bad cholesterol), and triglycerides
- Increases in HDL (good cholesterol)
- Benefits persisted for at least 4 weeks after stopping supplementation
The study concluded that diatomaceous earth could positively influence lipid metabolism and lower blood cholesterol in humans, but emphasized that more and larger placebo-controlled trials are needed.
| Blood Lipid | Change (+/- %) | Significance |
|---|---|---|
| Total Cholesterol | -13.2% | p<0.001 |
| LDL Cholesterol | Decreased | p<0.05 |
| Triglycerides | Decreased | p<0.01 |
| HDL Cholesterol | Increased | p<0.05 (after 4 weeks stop) |
Other health benefits, such as blood pressure regulation and general cardiovascular improvement, remain speculative and are not well studied in humans.
Skin, Hair, Nails, and Dental Health
Given DE’s mild abrasive qualities and rich silica content, it is found in natural toothpastes and skin scrubs. Proponents suggest potential benefits such as:
- Removes surface stains and plaque from teeth
- Acts as a gentle exfoliant for skin, removing dead cells and toxins
- Promotes stronger hair and nails via increased collagen production
Some evidence indicates silica is involved in calcium and mineral utilization, contributing to strong bones, nails, and teeth. While topical and cosmetic uses are well established, the case for DE as an internal beauty supplement is primarily anecdotal.
Uses in Animals and Agriculture
Diatomaceous earth has long been used to protect crops and livestock from insect infestation. Food-grade DE is recognized by regulatory agencies like the FDA for use as a feed additive for pets and animals, serving to:
- Reduce internal and external parasites in poultry, cattle, and pets
- Enhance egg quality and animal growth (found in poultry feeding studies)
- Control bedbugs, fleas, and other household pests by dehydrating and destroying exoskeletons
Veterinarians may use DE as an adjunct for parasite control in animals, but its direct antiparasitic effect in humans is not robustly demonstrated.
Safety Considerations and Side Effects
When used as directed, food-grade diatomaceous earth is generally recognized as safe for most adults and animals. However, important safety guidelines include:
- Only ingest food-grade DE; filter or industrial grades can be hazardous due to crystalline silica content.
- Inhalation risks: The fine dust can irritate airways. Use in well-ventilated areas and avoid breathing in powder.
- Possible gastrointestinal discomfort, such as bloating, gas, constipation, or, less commonly, nausea.
- May interact with certain medications if taken concurrently—consult your doctor, especially if you have chronic health conditions.
Pregnant and breastfeeding women, small children, and those with lung conditions should avoid unnecessary exposure or ingestion of DE unless specifically advised by a healthcare provider.
How to Use Diatomaceous Earth
Diatomaceous earth is typically consumed as:
- Powder, mixed with water, juice, or smoothies
- Capsules or tablets (less common; harder to find reliable dosing)
Common Dosage: General oral intake recommendations among proponents range from 1 teaspoon to 1 tablespoon daily, typically mixed with plenty of water. However, clinical dosing guidelines are not established. Always introduce gradually and monitor for side effects.
If using topically or in household applications (e.g., insect removal):
- Apply DE powder directly to problem areas, avoiding direct inhalation.
- For pets: Dust pet fur lightly, keeping powder away from eyes and nose.
Frequently Asked Questions (FAQs)
Is diatomaceous earth safe for human consumption?
Yes, but only food-grade DE is considered safe when used as directed. Industrial forms can be harmful if ingested or inhaled.
Does diatomaceous earth help with weight loss?
There are no clinical studies supporting diatomaceous earth for weight loss. Claims are anecdotal and unproven by science.
Can diatomaceous earth remove heavy metals from the body?
DE’s silica content may help bind and excrete some heavy metals, like aluminum, but comprehensive human evidence is lacking.
How long does it take for DE to lower cholesterol?
In the primary human study, cholesterol improvements were seen within 4–8 weeks of supplementation.
Are there risks to long-term use?
Long-term effects are poorly studied. As with any supplement, moderation, awareness of side effects, and consultation with a healthcare provider are essential.
Conclusion: Is Diatomaceous Earth Worth Trying?
Diatomaceous earth remains an intriguing natural supplement, with clear applications in detoxification, parasite control, and agriculture. Some preliminary evidence, particularly from animal and small human studies, suggests
potential benefits for cholesterol, bone health, and mild detoxification
. However, most health claims need further validation in rigorous, large-scale human trials.If you consider trying diatomaceous earth for any health use, select only food-grade products and consult your healthcare provider beforehand, especially if you have medical conditions or take regular medication. Use caution with dosage and pay attention to your body’s response.
References
- https://draxe.com/nutrition/diatomaceous-earth/
- https://www.webmd.com/diet/health-benefits-diatomaceous-earth
- https://pubmed.ncbi.nlm.nih.gov/9533930/
- https://www.healthline.com/nutrition/what-is-diatomaceous-earth
- https://npic.orst.edu/factsheets/degen.html
- https://consensus.app/home/blog/diatomaceous-earth-health-benefits-and-uses/
- https://www.webmd.com/vitamins/ai/ingredientmono-1531/diatomaceous-earth
- https://www.opss.org/article/diatomaceous-earth-it-useful-supplement
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