PH iWell Study to Compare an Online Interactive Technology to Self-directed Care in Overweight or Obese Individuals

Inclusion Criteria: * age 18-70 years old * overweight or obese men and women with BMI between 24 and 38, inclusive * concerned about weight/health (and motivated in losing weight) * stable medications for past 3 months * willing/able to use Web-based services * willingness not to use weight loss medications for the duration of the trial * able and willing to give informed consent and participate in the interventions * willing to come to three sessions and visits * willingness to be randomized to intervention or control group Exclusion Criteria: * contraindication to weight loss (e.g., malignancy or other serious illness) * Type 1 DM and Type 2 DM with other end organ compromise (renal, retinal or other) * Recent (within 6 months) cardiovascular event (MI or stroke) * current symptoms of angina * heart, renal, or liver disease (excluding kidney stone) * cancer or active neoplasm (excluding skin cancers) * hyperthyroidism * mental conditions that would preclude full participation * prior weight-loss (bariatric) surgery or plan for these procedures * liposuction surgery in past 12 months or plan for these procedures * recent weight loss in the past 3 months (\>20 lbs) * use of prescription weight loss medication in 3 months prior to screening * current use of medications for treatment of psychosis or manic-depressive illness