For people in occupational settings that increase the risk of titanium dioxide exposure, taking protective measures is helpful. This may include wearing protective equipment, such as respirators, and using ventilation systems.

Our scientific experts applied for the first time the 2018 EFSA Scientific Committee Guidance on Nanotechnology to the safety assessment of food additives. Titanium dioxide E 171 contains at most 50% of particles in the nano range (i.e. less than 100 nanometres) to which consumers may be exposed.  

Let’s break the risk down further.  

It adds a bright white color to coffee creamers, baked goods, chewing gums, hard-shell candies, puddings, frostings, dressings, and sauces. But the nanoparticles found in “food-grade” titanium dioxide may accumulate in the body and cause DNA damage—which is one way chemicals cause cancer and other health problems. 

Titanium dioxide is often listed in the ingredients list on the product label when used in home, beauty and personal care products.