Salt equivalent

Salt equivalent is usually quoted on food nutrition information tables on food labels, and is a different way of defining sodium intake, noting that salt is chemically sodium chloride.

To convert from sodium to the approximate salt equivalent, multiply sodium content by 2.5:

m N a C l m N a = m N a + m C l m N a ≈ 23 u + 35.5 u 23 u = 58.5 23 ≈ 2.5

(see: atomic mass and molecular mass).