The value calculated using BMI calculator has its significance. A high BMI can be a sign of too much fat on the body. A low BMI can be a sign of too little fat on the body. The higher a person’s BMI, the higher their chances of developing certain serious conditions, such as heart disease, and high blood pressure. A low BMI can also cause health problems, including bone loss and decreased immune function.
While BMI can be useful in screening adults and children for body weight problems, it does have its limits. BMI of people with very muscular bodies and Athletes is high. It may also underestimate the amount of body fat in older adults and other people who have lost muscle mass. (BMI vs. Abdominal Obesity – A heavy debate)