The claimEvidence D · marketing folklore
Activated charcoal drinks / powder detox and whiten daily
The evidence
Charcoal only adsorbs just-swallowed poison within ~1 h in the ER (Chyka 2005); taken daily it never reaches the blood and instead indiscriminately soaks up drugs (incl. oral contraceptives) and nutrients — its whitening is enamel abrasion.
The mechanism, in brief
Swap in a daily black latte and the mechanism falls apart. A healthy liver and kidneys process metabolic waste every moment; the charcoal you drink stays in the digestive tract, never reaches the blood, and never touches that waste.
Sources (2)
- Chyka, P. A., Seger, D., Krenzelok, E. P., & Vale, J. A.; AACT & EAPCCT. (2005). Position paper: Single-dose activated charcoal. Clinical Toxicology, 43(2), 61-87. Most effective within 1 h of ingestion; should not be administered routinely.
- Guengerich, F. P. (2008). Cytochrome P450 and chemical toxicology. Chemical Research in Toxicology, 21(1), 70–83.