Brita Belli

Unbeknownst to just about everyone, nanoparticles made a quiet entrance into the nation’s food supply at least a decade ago. Nanoparticles are materials that are microscopic—significantly smaller than a red blood cell; and tens of thousands of times smaller than the width of a human hair. These particles can help deliver nutrients, ensure longer freshness of food, act as thickening agents or enhance taste or flavor. The problem is, scientists are still determining the health and environmental impact of these tiny particles, even as industry is forging ahead.