| A_1 | Screening Number |
| A_2 | Initial of the child |
| A_3 | Date (according to English calendar- DDMMYY) |
| A_4 | Researcher code |
| A_5 | Date of birth (if known), (English calendar-DDMMYY) |
| A_6 | Age of child (in months) |
| A_7 | Sex of child (1=Male, 2=Female) |
| A_8 | Are there any plans to migrate within one year? |
| A_9 | Does the child have any acute illness? |
| A_10 | Does the child have any chronic illness? |
| A_11 | Does the child taking multivitamins that include vitamin B12? |
| A_12 | Does the child have any food allergy (peanut)? |
| A_13 | Does parent consenting for participate in the study? |
| A_14 | Weight (in kg) |
| A_15 | Length (in cm) |
| A _16 | Head Circumference (cm) |
| A_17 | Length for age <-1 z score |
| A_18 | Weight for length / HC for age ≤-3 z score |
| A_19 | Hemoglobin (g/dL) |
| A_20 | Child enroll number (as on the packet with medicine) |