The investigators will be following a population of 300 adult individuals age 18 years or older with obesity and 300 adult individuals without obesity or any aspect of the metabolic syndrome (hyperlipidemia, hypertriglyceridemia, hypertension, hyperglycemia, obesity). Obese subjects will be recruited through the Investigational Weight Management Clinic. A proportion of the subjects will be recruited through Blue Care Network of Michigan (BCN) as part of their Healthy Blue Living campaign which is supporting clinical care of up to 400 individuals in the clinic. The individuals not recruited directly through the clinic will be identified via flyer, word of mouth, and umclinicalstudies.org.