At what BMI value is someone classified as obese?

The classification of obesity is determined by the Body Mass Index (BMI), which is a calculation that uses an individual's height and weight to categorize them into different weight categories. A BMI of 30 or higher indicates obesity, with the category often further subdivided into class 1 (30-34.9), class 2 (35-39.9), and class 3 (40 and above, which is commonly referred to as severe or extreme obesity).

This classification is important because obesity is associated with numerous health risks, including heart disease, diabetes, and other chronic conditions. The categorization enables healthcare providers to identify those at higher risk for related health issues and to develop appropriate interventions.

Values that fall into other ranges, such as 20-24.9 indicate a normal weight, 25-29.9 classify as overweight, and under 18.5 indicates underweight, do not reflect the criteria for obesity. Hence, classifying a person as obese requires a BMI of 30 or higher, confirming that the correct answer is the one that includes those values.