Inclusion Criteria:  Age 12-60 months HIV-negative BCG vaccinated Moderate acute malnutrition (WHZ -2 to -3 or MUAC 115 - 125mm ± HAZ <-2) TB disease Latent TB infection  Exclusion Criteria:  Inclusion criteria not met Severe acute malnutrition (WHZ<-3; MUAC<115mm; bilateral oedema) Severe anaemia (Hb: <7g/dl) Chronic infection (HIV, hepatitis B or C) Chronic disease (e.g. Crohn's disease) Feeding problems (eg cerebral palsy) that prevent ingestion of RUSF Known nut allergy MDR TB disease and contacts of MDR TB adults