Inclusion Criteria:  willing to provide written informed consent female self-reported race of African American or more than one race in which African American is identified 18 to 65 years of age BMI 30 to 50 kg/m2 reported income ≤ 200% of the federal poverty level ability to complete questionnaires in English willing to archive blood and urine samples willing to fast for a minimum of 8-10 hours prior to clinic visits  Exclusion Criteria:  male self-reported race other than African American or more than one race in which African America is not identified reported income > 200% of the federal poverty level given birth within the past 6 months, currently pregnant, or plans to become pregnant within 6 months currently breastfeeding currently participating in a weight loss program current use of prescription weight loss medication, or recent weight loss (>10lbs in last 6 months). If ppt is on a prescription medication that impacts weight but meets weight stability criteria (weight stable or loss of <10 lbs in the last 6 months), ppt will be deemed eligible past bariatric surgery or plans for bariatric surgery within 3 months active cancer or cancer treatment cognitive impairment as to interfere with study participation serious digestive disorders that significantly alter metabolism and weight (like uncontrolled inflammatory bowel disease) other conditions that affect metabolism or body weight current diagnosis and active treatment for alcoholism or other illicit drugs of abuse uncontrolled significant thyroid disorder (controlled = 6 months of medication) uncontrolled significant diabetes (FBS >250) or hypertension (BP >180/100) current diagnosis or treatment for heart failure serious psychiatric illness, including bipolar disorder and schizophrenia current or recent diagnosis (within last 5 years) of an eating disorder persons who weigh more than 380 pounds (due to scale). not willing to be able to re-contacted are unable to utilize devices and/or applications as required for device study participation have another member of the household (same address) that is a participant in RESPONSES other conditions that affect metabolism or body weight as determined by the PIs and MI