Sodium (pronounced /ˈsoʊdiəm/) is a chemical element which has the symbol Na (Latin: natrium), atomic number 11, atomic mass 22.9898 g/mol, common oxidation number +1.
For sodium chloride in the diet, see salt.
Healthy American adults should eat less than 2,400 milligrams of sodium a day. This is about 1 teaspoon of sodium chloride (salt).