Final answer:
BMI does not consider fat mass or distribution, leading to potential under- or overestimation. It is also not suitable for children and adolescents.
Step-by-step explanation:
A limitation of using BMI to assess weight status is that it does not take into account fat mass or fat distribution in the body. This means that BMI can sometimes underestimate the amount of body fat in overweight or obese people and overestimate it in more muscular people. For example, a muscular athlete will have more muscle mass (which is heavier than fat mass) than a sedentary person of the same height, so their BMI may categorize them as more overweight or obese. Additionally, BMI is not a good measure for children and adolescents because they are still growing and developing.