A Bilingual Virtually-based Intervention (PEDALL) for the Prevention of Weight Gain in Childhood ALL Patients Considering Key Genetic and Sociodemographic Risk Factors

Inclusion Criteria: * Age: 5-21 years old at enrollment * Diagnosis and Treatment: Plan to receive or are receiving maintenance or continuation chemotherapy for B- or T-cell ALL, or mixed phenotype acute leukemia. * Timing: Patient is eligible for entry only if it is feasible to start the study intervention during the first month of the maintenance phase of ALL therapy. * Language: Fluency in English or Spanish * Weight Status: Healthy weight at baseline as determined by BMI z-score \< 1.04 and \>-1.04 for those under 5-18, and BMI between 19 and 25 for those \>18. * Ethnicity: Hispanic or Non-Hispanic of any race. Exclusion Criteria: * Patients on nutrition support (enteral or parenteral nutrition) * Patients with a history of eating disorder