Feature Chemistry

Nanoparticles in foods raise safety questions

These microadditives enhance color, flavor and freshness. But what do they do in the body?

jawbreakers

NOSHING ON NANO  Nanoparticles can make foods like jawbreaker candies brighter and creamier and keep them fresh longer. But researchers are still in the dark about what the tiny additives do once inside our bodies.

S. Egts

By Susan Gaidos

- More than 2 years ago

It seemed like a small thing when Paul Westerhoff’s 8-year-old son appeared, with his tongue and lips coated bright white.