Normal BMI is defined as which range?

• A. 25-29.9 kg/m^2
• B. 18.5-24.9 kg/m^2
• C. 30-39.9 kg/m^2
• D. greater than 40 kg/m^2

Answer: (B)

Normal BMI corresponds to a range where health risks are typically lowest, and it is defined as 18.5 to 24.9 kg/m^2. Values below this indicate underweight, while 25.0 and above moves into overweight and obesity categories, with higher numbers signaling greater health risk. BMI itself is calculated as weight in kilograms divided by height in meters squared and serves as a useful screening tool, though it doesn’t distinguish fat from muscle, so there can be misclassifications for very muscular individuals or older adults with low muscle mass.