Behavioral Weight Loss for Cancer Survivors in Maryland: A Trial With Adaptive Interventions

All participants will receive * written Johns Hopkins weight loss material * instructions for using a smartphone weight loss app to keep track of food and exercise every day (either android or iPhone) * a weekly weight loss tip by text message and email, and a text message on weight loss progress each week * a research scale and specific instructions for verifying weights at 5 specific times over the next year. The participants may also request two 20-minute phone calls during the first 2 months with a weight loss coach. After the first 2 months, depending on weight loss progress, the participants will be assigned to another program which may include additional assistance for 6 more months. Additional assistance may include scheduled phone calls with a Johns Hopkins weight loss coach each month, individualized emails from a Johns Hopkins weight loss coach, and the option for daily text message reminders. After the first 8 months of assistance, the participants will continue the program on the participant's own for 4 more months and provide the study team with final weights 12 months after the start of the program.