A healthy body mass index (BMI) range typically falls between 18.5 and 24.9. This range is considered ideal for maintaining a balance between health and weight. A BMI below 18.5 may indicate underweight, while a BMI above 24.9 can suggest overweight or obesity, leading to various health risks such as heart disease, diabetes, and hypertension. However, it is essential to remember that BMI is a screening tool and does not account for factors like muscle mass, body composition, and distribution of fat. Therefore, it should be used in conjunction with other assessments for a comprehensive view of health.