Does titanium dioxide in toothpaste cause harm?
Worth avoiding. The EU banned titanium dioxide in food. Research shows it may affect gut health at regular doses.
What's actually in it
Titanium dioxide (TiO2) is a white powder added to hundreds of foods and products to make them whiter or more opaque. It's in candies, chewing gum, powdered sugar, some cheeses, and white sauces.
The EU banned titanium dioxide as a food additive in 2022, citing concerns about genotoxicity. The FDA still allows it in the US. The debate centers on whether nano-sized TiO2 particles can cross the gut wall into tissue.
What the research says
A 2026 study in j hazard mater found that toxic metals and carcinogens in tattoo inks available in Australia..
Violi JP(1), Westerhausen MT(2), Tasevski B(3), Kundu P(1), Donald WA(4)..
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Toxic metals and carcinogens in tattoo inks available in Australia. | J Hazard Mater | 2026 |
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