✓ No active regulatory warningsFDA MedWatch, EMA EudraVigilance, WHO VigiBase, WADA Prohibited List · 2026-05-29
📰Read the full Titanium Dioxide (E171) evidence review on GMJ News →Complete clinical article, references and updates on news.gmj.ge. This page is the structured safety summary.⚠ See referenced main entry for full safety data [1]
ℹ️ Not obtained from food. Not applicable — this is not obtained from food in meaningful amounts; supplementation is the practical route.
🔬 Lab interpreter
Recommended test
See main entry
See main entry
Reference range / target
N/A
N/A
When to test
N/A
N/A
See main entry [1].
Full lab monitoring ↓⚕ For professionals — confirm ranges against your local laboratory.
Clinical verdict
Alias for Titanium Dioxide — EU banned E171 (2022), FDA maintains GRAS. See 'Titanium Dioxide' entry for full data including EFSA genotoxicity concerns and regulatory divergence [1].
1 How much do I need?
👤 Adults: Specific dosage data under clinical review
👴 Elderly: Specific dosage data under clinical review
🤰 Pregnancy: See guidance
See main entry [1].
👦 Pediatric: See guidance
See main entry [1].
🏃 Athletes: Standard dose
⚖️ Obesity: Standard dose
Fat-soluble compounds may require dose adjustment in obesity.
🩺 Renal: Consult specialist
Dose adjustment may be needed in renal impairment.
🌱 Vegan: Standard dose
How to take
🍽 Timing: See main entry [1].
💊 With food: See main entry [1].
🚫 Avoid: See main entry [1].
2 Which form?
| Form | Bioavailability | Vegan | Cost |
|---|---|---|---|
| ['See main entry', 'standard', 'See referenced ingredient [1].'] | Standard | Check label |
3 Common questions
Key point ▼
Alias for Titanium Dioxide — EU banned E171 (2022), FDA maintains GRAS. See 'Titanium Dioxide' entry for full data including EFSA genotoxicity concerns and regulatory divergence [1].
4 Clinical evidence
Strong
See main entry [1]. HIGH
Moderate
See main entry [1]. MODERATE
Insufficient
See main entry [1]. LOW
5 Safety, toxicity & adverse events
Relative
⚠ Inert colorant (food-additive code E171) — no pharmacological contraindications
⚠ EU prohibited it as a food additive in 2022 (genotoxicity could not be excluded); other jurisdictions still permit it — regulatory, not clinical, status
🚩 Red flags
● See main entry for safety alerts [1]
6 Interactions
7 Cite this page
Vancouver: Pkhakadze G. Titanium Dioxide (E171) — safety profile [Internet]. Tbilisi: PHIG; 2026 [cited 2026 Aug 31]. Available from: https://supplement.ge/ingredients/titanium-dioxide-e171/
APA 7th: Pkhakadze, G. (2026). Titanium Dioxide (E171) — Safety profile. Public Health Institute of Georgia. https://supplement.ge/ingredients/titanium-dioxide-e171/
📋 Editorial information
Author: Prof. G. Pkhakadze, MD, MPH, PhD
Institution: Public Health Institute of Georgia (PHIG)
Affiliation: David Tvildiani Medical University (DTMU)
First published: January 2026
Last reviewed: 2026-05-29
Next review: March 2027
References: 1 cited sources
COI: SupplementIndex receives no funding from supplement manufacturers. All content independently authored by PHIG.
Process: Systematic literature review
📄 License & reuse
Published under Creative Commons Attribution 4.0 International (CC BY 4.0). You may share and adapt for any purpose with attribution.
Pkhakadze G. "Titanium Dioxide (E171) — Safety Profile." SupplementIndex, PHIG, 2026. https://supplement.ge/ingredients/titanium-dioxide-e171/ CC BY 4.0.
GP
Prof. G. Pkhakadze, MD, MPH, PhD
Professor of Public Health · Head of Department, DTMU
Editor-in-Chief, Georgian Medical Journal (ISSN 3088-4322)
Chair, Public Health Institute of Georgia · UEMS Public Health Section
Educational and public health purposes. CC BY 4.0. Consult your healthcare provider before starting any supplement. Corrections: info@accreditation.ge. Publisher: PHIG