What BMI range is considered underweight?

The classification of Body Mass Index (BMI) indicates that a BMI of less than 18.5 is considered underweight. This range suggests that an individual may not have enough body fat for optimal health and can be at greater risk for various health issues. The underweight classification highlights the importance of maintaining a healthy weight, as being underweight can lead to problems such as weakened immune function, nutritional deficiencies, and increased vulnerability to health complications. This understanding emphasizes the need for individuals who fall into this category to seek appropriate guidance on nutrition and overall wellness.