Efsa proposed Titanium dioxide (E171) as not safe!
EFSA 2021 safety assessment of titanium dioxide (E171) 1. What is titanium dioxide? Titanium dioxide is used a food colour (E171) and, as with all food colours, its technological function is to make food more visually appealing, to give colour to food that would otherwise be colourless, or to restore the original appearance of food. […]