Uh-oh, ingested titanium dioxide is a carcinogen. No white sugar powdered donuts for you. What else is it in? Sunscreen! Does it permeate the skin? Yes. Uh-oh. Does it kill off coral reefs? Yes. Uh-oh.
chronic oral exposure to the additive spontaneously induced preneoplastic lesions in the colon, a non-malignant stage of carcinogenesis, in 40% of exposed animals.