Colloidal minerals

Tier 3 — weak evidence · Mineral absorption claims

Liquid mineral products sourced from ancient plant deposits or clay, marketed as being more absorbable than standard mineral supplements. No clinical evidence supports superior absorption or any health benefit. Mineral content and purity vary widely between products. Some products have tested positive for heavy metal contamination (lead, aluminium). Not recommended.

Dose: No evidence-based dose; unregulated content; contamination risk from unverified sources