Information on the prevalence and trends of key nutritional problems were obtained from nationally representative surveys. These are the national food and nutrition surveys (NNS series) and national health examination surveys (NHES series) and the multiple indicator cluster survey (MICS). Findings from relevant small scale studies (such as intervention studies) complemented the information obtained from nationwide surveys. Since the data used in this report were compiled from publications or reports which are available in the public domain, ethical clearance is not needed.