Background: Monitoring of the health programs is a growing challenge and plagued by lack of resources, personnel, especially in the resources-poor settings. Client’s self-monitoring of the services consumption is a new concept in program implementation needing validity. Client’s self-perception of the health status of their children is a potential idea which needs assessment of the validity. Methods: A cross-sectional study was conducted in a rural district in Bangladesh. Mothers monitored their children’s daily consumption of micronutrient powder (MNP) by checking in a paper-form supplied to them. Project personnel reported the consumption by enumerating the empty sachets of MNPs. The project personnel asked mothers a simple question inquiring about the health status of their children over the preceding one week. Data was collected on actual sufferings of health issues and medical treatment received. Validity of client’s monitoring of MNP consumption was assessed by correlation, kappa estimates and the Bland-Altman plots. Client’s health perception of their children was assessed for validity by sensitivity, specificity, positive predictive value, and correct-classification analyses. Results: Spearman rho coefficient was 0.44 between the mother’s and project’s monitoring of MNP consumption. Kappa statistics for agreement was 0.3. Bland-Altman plots showed 4.2% of the observations falling outside of the limits of agreement. Mother’s reporting of the children being “sick/unwell” predicted the occurrence of any illnesses in the children with 98% sensitivity and 86.9% specificity. Conclusion: Service recipient’s monitoring of service consumption and their assessment of the health well-being of their children by asking a simple question is valid and potentially a cost-containing monitoring tool in resources poor settings.