This study was a pilot 3-month clinical trial that investigated the feasibility, effectiveness, and acceptability of using the Track Health function of the Veterans Health Administration's patient health record for effecting a more positive physical activity (PA) and dietary intake lifestyle in a sample of 38 overweight and obese Veterans with prediabetes. Baseline and three-month post-intervention outcomes were measured in two main domains: objective (e.g., weight) and subjective (e.g., self-efficacy).