Balanced (Egg) Protein During Obesity Reduction: Differential Responses of Insulin Resistance by Race

Inclusion Criteria: * Age \> 60 years * Identifies as Caucasian/white or African-American/black * Obese body weight (\>30 kg/m2) * Able to speak and understand spoken and written English * Elevated fasting plasma glucose (≥95 and \<126 mg/dL) * Age-normal Kidney function (≥ 45 mL/min/1.73 m2) Exclusion Criteria: * Body weight \> 224 kg (limit of the BodPod) * Treated or untreated diabetes (prior diagnosis, treatment, or fasting blood glucose ≥126 mg/dL) * Presence of unstable, acutely symptomatic, or life-limiting illness * Positive screen for dementia using Mini-Cog evaluation tool * Neurological conditions causing functional or cognitive impairments * History of significant weight instability (defined as \> 10 pounds weight gain or loss over 6 months prior to study participation) * Allergy or intolerance to egg products * Unwillingness or inability to be randomized to any one of two intervention groups, submit to all study testing, or continuously participate in a randomly assigned lifestyle intervention program for four months * Inability to walk independently * Unable to give consent * Unable to complete written recording forms including journals of eating and exercise behaviors. * Current use of the following medications: monoamine oxidase inhibitors, prescription weight loss medications, insulin, metformin or any other hypoglycemic agent * Primary Care Physician advises against participation * Smoker * Unusually or unstable renal function