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Opt-In Research Study

We are recruiting people motivated to lose weight to participate in a 6 month weight loss intervention study. The purpose of this study is to see what combination of different weight loss program components is the most effective for overall weight loss. All participants will receive a personal coach who will communicate with them regularly over the telephone throughout the study. All participants must own a personal smartphone and be willing and able to record their food intake on a smartphone application that will be provided. Participants are asked to attend a total of 5 in-person sessions throughout the course of the study, and all appointments will be held on Northwestern University's Chicago campus at 680 N. Lake Shore Drive. Chicago, IL 60611. Free parking vouchers will be provided for those who drive to in-person visits. This study DOES NOT involve medication/drugs.

Participants will be randomly assigned to 1 of 16 possible programs that may include a combination of the following weight loss program components:

  • Coaching Calls
  • Text Messaging
  • Reports to Primary Care Physician
  • Buddy Training
  • Meal Replacement Recommendations


You may be eligible to participate if you:

  • Are between 18-60 years old
  • Will be living in the Chicagoland area for the next 6 months
  • Are NOT currently pregnant, trying to become pregnant, or breastfeeding
  • Do NOT have an unstable medical condition
  • Have an Android or iPhone smartphone
  • Are willing to track your lifestyle behaviors using a smartphone for 6-months


Phone: 773-234-6711