Certified Dietary Manager (CDM) Practice Exam

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What BMI value indicates obesity?

BMI of 25 or greater
BMI of 30 or greater
BMI of 20 to 25
BMI of 35 or greater

The correct answer is: BMI of 30 or greater

A body mass index (BMI) of 30 or greater is the established threshold for diagnosing obesity. This classification is based on statistical associations between BMI and health risks; as BMI increases above 30, the likelihood of developing health issues such as heart disease, diabetes, and certain cancers also increases significantly. Understanding this classification helps in assessing overall health and guiding dietary and lifestyle interventions. The parameters for BMI are framed by the World Health Organization (WHO) and are widely adopted in health and nutrition contexts. Other values mentioned do not correspond to the classification of obesity: a BMI of 25 signifies overweight, while a range of 20 to 25 is considered normal weight. A BMI of 35 or greater indicates severe obesity, but it is not the lowest cutoff for the obesity category itself.