A visceral fat determining device which is easy to operate at home and capable of providing information associated with visceral fat of a subject is disclosed. The visceral fat determining device is comprising means for inputting personal data representing vital characteristics of the subject, a data processing unit that can process various types of calculations, and a display portion capable of displaying the personal data and the calculation results. Quantitative information on the visceral fat of the subject can be obtained through the calculation based on the abdominal girth of the subject, which is a circumferential length of a torso of the subject.
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