Monitoring of groups that receive a supplement will happen weekly. Compliance will be defined based on the number of supplement packets that are consumed per week. To assure that the mothers are compliant in using the supplement, they will be asked to return the empty supplement packages at the end of the week. Optimal compliance will be defined as consumption of at least 50% of the weekly samples. Supplements will be provided in plastic or paper bags with a clearly labelled household ID (identity number). Compliance and dose response to compliance will be reviewed in existing studies to determine minimum compliance required.