Inclusion Criteria:  Youth 12-17 years old History of T1D of at least one year HbA1c 8-11% Guardian willing to also participate English as preferred language  Exclusion Criteria:  Youth with other metabolic disorders, unstable thyroid disease, diagnosed eating disorders, prohibitively strict dietary restrictions, or those with other serious condition that renders participation inappropriate. Females who are pregnant, breast feeding, planning to become pregnant during the study period or delivered a baby in the last 12 months. Unwillingness to follow a personalized eating plan for 6 months or complete MyFitnessPal logs at least 3 days/week throughout the study.