| Methods | Design: RCT |
| Unit of randomisation: Individually randomised trial | |
| Participants | Location/Setting: Government school near university of Rajasthan,Jaipur, India |
| Sample size: 107 adolescent girls | |
| Dropouts/withdrawals: No loss to follow‐up | |
| Sex: Only female adolescents | |
| Mean age: Not specified | |
| Inclusion criteria: All adolescent girls studying in classes VI to VIII were enrolled | |
| Exclusion criteria: Not specified | |
| Interventions | Intervention (sample size): |
| Intervention group (N = 53): 100 g of biscuits fortified with one RDA levels of vitamin A, iron, folic acid, vitamin C and iodine was provided for all working days during 4 months (total 75 days of supplementation) | |
| Control (sample size): | |
| Placebo (N = 54): 100 g of biscuits furnishing 497 kcal and 11.36 g of protein per day were provided to the control group for 4 months | |
| Outcomes | Primary outcomes: BMI, BMI z‐scores, weight‐for‐age, height‐for‐age |
| Secondary outcomes: Not specified | |
| Timing of outcome assessment: After 4 months of intervention | |
| Notes | Study start date: September 2004 |
| Study end date: December 2004 | |
| Funding source: University Grants Commission, New Delhi, India | |
| Conflicts of interest: Not specified |