Inclusion Criteria:

   - 10-14 year old children with obesity (BMI ≥ 95th percentile on the 2000 Centers for
   Disease Control and Prevention BMI reference) on the date of randomization. Standard
   behavioral weight control program eligibility criteria will apply: Both child and at
   least one parent/guardian must agree to attend sessions.

Exclusion Criteria:

   - Medical conditions affecting growth - diagnosed with a genetic or metabolic
   disease/syndrome associated obesity, Type 1 diabetes, Type 2 diabetes taking
   medication, chronic gastrointestinal diseases, Chronic renal diseases, uncorrected
   structural heart disease, heart failure, heart transplant, anorexia nervosa or bulimia
   nervosa or binge eating disorder (present or past), AIDS or HIV infection, pregnancy

Medications affecting growth - systemic corticosteroids more than 2 weeks in the past year,
insulin, oral hypoglycemics, thyroid hormone, growth hormone

Conditions limiting participation in the interventions - e.g., unable to participate in
routine physical education classes at school, requiring oxygen supplementation for
exertion, developmental or physical disability preventing participation in interventions,
children or parents/guardians who cannot medically participate in mild dietary restrictions
and/or increased physical activity for any reason

Conditions limiting participation in the assessments - child or primary caregiver not able
to read surveys in English or Spanish, child two or more grade levels delayed in school for
reading and writing in his/her native language

Unable to read, understand or complete informed consent in English or Spanish

Plan to move from the San Francisco Bay Area within the next 12 months.