A recent study of a cross-sectional sample of 5440 US adults participating in the NHANES surveys 1999-2004 showed that 29.2% of obese men and 35.4% of obese women (a total of approximately 19.5 million US adults) are metabolically healthy, (sometimes referred to as "uncomplicated" obesity), whereas 30.1% of normal-weight men and 21.1% of normal-weight women (a total of approximately 16.3 million US adults) exhibit clustering of two or more cardiometabolic abnormalities. This study concluded that additional research is required to understand the physiological mechanisms underlying these differences. Another recent study of more than 3000 participants drawn from the Framingham Heart Study showed that both subcutaneous fat and visceral fat were correlated with metabolic risk factors. However, only the effects of visceral fat remain significant after adjusting for common anthropometric indices such as waist circumference and BMI. The issues surrounding cardiometabolic risk among different phenotypes along with the increased risks associated with visceral fat suggests the need to measure visceral adipose tissue in a diverse population.The gold standard, CT, is not a practical solution due to the cost and radiation exposure associated with the measurement. Therefore, it is important to develop a low-cost, low-radiation screening method for measuring visceral adipose tissue.