Children are the future of any nation. A malnourished child is not only a problem of present-day society, but also an issue for the future. However, approximately one-third of the world’s children are malnourished. Malnourishment can be measured in terms of nutrition and weight. In general, people believe that a lack of money—that is, financial poverty—is the main reason for childhood malnutrition. Nevertheless, most studies addressing this topic report that socio-economic factors are the major cause of childhood malnutrition worldwide. This study analyses how some of these socio-economic factors affect childhood malnutrition and identifies the major steps taken by the authorities of different countries to eliminate these causes. A review of the literature shows that a mother’s knowledge of her children’s health, her education level, and her place of residence are some of the major factors impacting children’s nutrition level. A literature review shows that among all types of malnutrition measurements, stunting indicates the long-term impact of consistent malnutrition most effectively. The governments of several countries as well as international organisations are trying to overcome this problem through the implementation of various programs; however, more thorough intervention is required.