Demographics are changing the contents of supermarket freezers in the US. 'Ethnic' frozen food sales reached US$2.2bn in 2001, according to the American Frozen Food Institute. The biggest growth has been Mexican, which grew 20.6% to US$488m, followed by Asian, which includes Chinese, Thai and Indian, up 12.3%, totalling US$463m. That said, Italian is still the most popular ethnically-based frozen food in the US, with sales totalling US$1.28bn in 2001, up 6.1% from 2000.