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Intervention protocol summary.
| Intervention component | SM + FB | SM only |
|---|---|---|
| 1. Fitbit app for self-monitoring of dietary intake | ✓ | ✓ |
| 2. Fitbit Charge 2™ for self-monitoring physical activity (PA) | ✓ | ✓ |
| 3. Wireless scale for weight self-monitoring | ✓ | ✓ |
| 4. Personalized fat, calorie, and PA goals for weight loss | ✓ | ✓ |
| 5. Diabetes Prevention Program (DPP) online | ✓ | ✓ |
| 6. Feedback messages through the SMARTER app | ✓ |
