Which of the following is a limitation of using bioelectrical impedance for body fat assessment?

Using bioelectrical impedance for body fat assessment does indeed have the limitation that results can be affected by hydration levels. This technique works by sending a low-level electrical current through the body, measuring the resistance to the current flow as it passes through different tissues. Because water conducts electricity, the hydration status of an individual significantly influences the readings. If someone is dehydrated, the impedance will be higher, potentially resulting in an overestimation of body fat percentage. Conversely, if an individual is well-hydrated, measurements may underestimate body fat. Therefore, accurate assessment requires standardized hydration conditions to ensure reliable results.

This highlights the importance of considering hydration status when interpreting bioelectrical impedance data in order to achieve more accurate assessments in body composition analysis.