Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The relation between serving sizes defined by the US Food and Drug Administration (FDA) [Reference Amounts Customarily Consumed (RACC)] and energy density of foods (kcal/100 g) for 1387 foods in the US Department of Agriculture Food and Nutrient Database for Dietary Studies (FNDDS) (9).
