According to the most recent National Institutes of Health's Clinical Guidelines for the
Identification, Evaluation, and Treatment of Overweight and Obesity in Adults, recommendations for practical clinical assessment include
Determining total body fat through the BMI to assess obesity.
Determining the degree of abdominal fat and health risk through waist circumference.
Using the waist-to-hip ratio as the only definition of obesity and lean muscle mass.
Both A and B.
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