Diatomaceous Earth (Food Grade)

Also known as: DE, diatomaceous earth, fossil shell flour, silica supplement

Grade D — Traditional Usemineraldetox
2000–4000 mgMixed in water on empty stomach; start with small dose

Fossilized algae marketed for detox, gut health, and silica content. Virtually no clinical evidence supports popular health claims. Food-grade is safe to ingest in small amounts but offers little proven benefit. Inhalation is dangerous. Better silica sources exist.

🦠Gut Health
Last reviewed: 2026-03-12

Quick Facts

Evidence

Grade D

Studies

1

Interactions

1

Forms

1

Evidence Rating: Grade D — Traditional Use

Based mainly on traditional use or anecdotal evidence. Very limited scientific data.

Interaction Warnings

Medications taken orallyModerate

Highly absorbent — may reduce absorption of medications if taken simultaneously. Separate by 2+ hours.

Important Notes

  • Most health claims (detox, weight loss, cholesterol) are NOT supported by clinical evidence
  • Must be food-grade — industrial/pool-grade is toxic
  • Can cause GI irritation and constipation
  • Inhalation of dust is a serious respiratory hazard — never breathe it in
  • Abrasive — may damage dental enamel if used orally without dilution
  • Better sources of bioavailable silica exist (orthosilicic acid supplements)

Clinical Evidence (1 study)

Diatomaceous earth as a source of silica for human health

Jugdaohsingh R et al. (2002) — J Nutr Health Aging

Orthosilicic acid (bioavailable silica) supports connective tissue — however, DE is a poor source of bioavailable silica and most health claims are unsubstantiated

Alternatives to Consider

These supplements target similar goals and may be worth considering alongside or instead of Diatomaceous Earth (Food Grade).

Sulforaphane

Grade B

Powerful Nrf2 activator from cruciferous vegetables. Evidence for air pollution detoxification and H. pylori eradication.

🦠 Gut Health

Milk Thistle

Grade B

Premier liver-support herb with strong evidence for hepatoprotection. Silymarin (active compound) has antioxidant, anti-inflammatory, and regenerative effects on liver cells. Phytosome form preferred.

🦠 Gut Health

Chlorella

Grade C

Green algae rich in chlorophyll, protein, iron, and B12. Evidence for immune support and metabolic markers. Broken-cell wall form required for bioavailability. Complementary to spirulina.

🦠 Gut Health

Related Supplements

Sulforaphane

Grade B — Moderate Evidence

Powerful Nrf2 activator from cruciferous vegetables. Evidence for air pollution detoxification and H. pylori eradication.

Chlorella

Grade C — Preliminary

Green algae rich in chlorophyll, protein, iron, and B12. Evidence for immune support and metabolic markers. Broken-cell wall form required for bioavailability. Complementary to spirulina.

Milk Thistle

Grade B — Moderate Evidence

Premier liver-support herb with strong evidence for hepatoprotection. Silymarin (active compound) has antioxidant, anti-inflammatory, and regenerative effects on liver cells. Phytosome form preferred.

Sea Moss

Grade C — Preliminary

Mineral-rich seaweed popular for its 92-mineral profile. Prebiotic fiber supports gut health. Limited clinical trial evidence despite popularity — most claims extrapolated from nutrient analysis. Iodine content requires caution.

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⚕️ Important Disclaimer

This information is for educational purposes only. It is not medical advice. Always consult a healthcare provider before starting any supplement regimen, especially if you take medications or have health conditions.

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