Bioelectrical impedance analysis (BIA) is a widely used method for estimating body composition. The technology is relatively simple, quick, and noninvasive. BIA is currently used in diverse settings, including private clinicians’ offices, health clubs, and hospitals, and across a spectrum of ages, body weights, and disease states. Despite a general public perception that BIA measures “body fat,” the technology actually determines the electrical impedance of body tissues, which provides an estimate of total body water (TBW). Using values of TBW derived from BIA, one can then estimate fat-free mass (FFM) and body fat (adiposity). In addition to its use in estimating adiposity, BIA is beginning to be used in the estimation of body cell mass and TBW in a variety of clinical conditions.
BIA is an incredible tool that we utilize to evaluate your overall hydration, toxicity status, base metabolic rate, body fat percentage, lean body mass, and overall resiliency. There are thousands of articles referencing the accuracy of a BIA machine. BIA is a great tool to show patients a progress report on their health as well. It’s exciting to start off with a reading that may not be up to snuff and watch as a patient progresses towards optimal health.