The body water content meter comprises a measuring part that measures the water content of a subject, a display part that displays the current water content measured by the measuring part, and a storing part that stores the current water content as measurement information. The body water content meter also assesses whether or not the subject is dehydrated based on the current water content, and changes the display format of the display based on the previous water content and the previous assessment results indicating whether or not the subject was dehydrated, which are obtained from the previous measurement information stored in the storing part, and on the current water content and the current assessment results of the assessment means.
