This indicator shows the percentage of adults aged 18 years and older with a body mass index between 18.5 and 25. According to guidelines from the National Institutes of Health (NIH), a BMI of less than 18.5 is considered underweight, a range of 18.5 to 24.9 is deemed normal, 25.0 to 29.9 is regarded as overweight, and a BMI of 30 or more is considered obese.