Maintaining a healthy body mass index (BMI) is significant as it provides a rough estimate of body fat, helping to evaluate the risk for chronic diseases such as diabetes, hypertension, and heart disease. A healthy BMI range is linked to better overall health outcomes, including lower mortality rates. It is an important indicator for healthcare professionals to assess weight-related health risks and guide patients in lifestyle changes needed to achieve and maintain a healthy body weight. However, it is essential to remember that BMI is just one measure and may not apply to everyone.