Are the new scales that use BIA safe to use?
Asked by kchristy6 on May 14, 2008 in Alternative & Integrative Nutrition



Are the scales that use Bioelectrical Impedance Analysis safe to use? I don't have a pacemaker, but do I need to be concerned about a current being sent through my body?


Answer

Bioelectrical Impedance Analysis (BIA) estimates your body composition by measuring resistance to the flow of a weak electrical current that runs through the water in your muscle and fat tissue. When BIA technology is included in a bathroom scale, the electrodes are located in the foot sensor pads. BIA is safe, but your hydration status influences the accuracy of the analysis. Hydration is affected by the intake of fluids, sodium, alcohol, caffeine, and prescription drugs, as well as by strenuous exercise, illness, and hormonal changes during the menstrual cycle. Since the ratio of fat to muscle changes very slowly, measure your body composition once every six months.


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