Nanofood is food which has been cultivated, produced, processed or packaged using nanotechnology techniques or tools, or food to which manufactured nanomaterials have been added.

The International Union of Food, Farm and Hotel Workers (IUF) called for a moratorium on the use of nanotechnology in food and agriculture in a resolution passed during their March meetings in Geneva in 2007. This first of its kind resolution joins a growing chorus of opposition to the rapid and unregulated introduction of nanotechnology into the marketplace. The IUF represents workers in more than 300 unions in 120 countries. The text of the union's resolution is reproduced in full below.