The purpose of this study is to determine if the Bright Bodies (BB) Healthy Lifestyle Program can help reverse early abnormalities in glucose metabolism and prevent the progression to type 2 diabetes (T2DM) in high-risk, obese youth with newly-diagnosed impaired glucose tolerance (IGT).

Primary Aim: (1) To determine whether youth randomized to the Bright Bodies (BB) Healthy Lifestyle Program have lower 2-hr plasma glucose levels than those randomized to standard lifestyle counseling (control) after 6 months.

Secondary Aims: (2) To determine if greater conversions from IGT to normal glucose tolerance (NGT) and less development of T2DM occurs for those in the BB vs Control Group; (3)To determine if there is improvement in anthropometric/metabolic parameters in BB vs Control Group; and (4) To determine if there is an improvement in psychosocial and family dynamic outcomes of the child in BB vs Control Group.

Inclusion Criteria:

• Diagnosis of IGT (glucose 140-199 at 2 hrs during OGTT)
• Age 11 to 16
• An interest in being enrolled in a healthy lifestyle program
• A parent/caregiver willing to participate with child in program

Exclusion Criteria:

• Psychiatric disorder or serious medical condition that would preclude participation in program
• Currently taking medication that potentially effects insulin sensitivity (eg Metformin) or causes weight gain (example: Risperidone) or weight loss (eg Xenical)
• Involvement in co-existing weight management/healthy lifestyle program
• Plans of moving out of the Greater New Haven area within six months