How the impacts on the different dimensions of food security play out and affect the food security of different population groups depends on where in the food supply chain the reduction in losses or waste takes place as well as on where nutritionally vulnerable and food-insecure people are located geographically.In April and May 2020, concerns were expressed that the COVID-19 pandemic could result in a doubling in global hunger unless world leaders acted to prevent this. Agencies such as the WFP have warned that this could include the number of people facing acute hunger rising from 135 million to about 265 million by the end of 2020. Indications of extreme hunger have been seen in various cities, such as fatal stampedes when word spread that emergency food aid was being handed out. Letters calling for co-ordinated action to offset the effects of the COVID-19 pandemic have been written to the G20 and G7, by various actors including NGOs, UN staff, corporations, academics and former national leaders. Following the 2022 invasion of Ukraine, concerns have been raised over hunger resulting from rising food prices. This is forecast to risk civil unrest even in many middle income countries, where government capability to protect their populations was largely exhausted by the Covid pandemic, and has not yet recovered. Hunger relief organisations
Many thousands of hunger relief organisations exist across the world. Some but not all are entirely dedicated to fighting hunger. They range from independent soup kitchens that serve only one locality,  to global organisations.
The philosopher Simone Weil wrote that feeding the hungry when you have resources to do so is the most obvious of all human obligations. She says that as far back as Ancient Egypt, many believed that people had to show they had helped the hungry in order to justify themselves in the afterlife. Weil writes that Social progress is commonly held to be first of all, "...a transition to a state of human society in which people will not suffer from hunger." Social historian Karl Polanyi wrote that before markets became the worlds dominant form of economic organization in the 19th century, most human societies would either starve all together or not at all, because communities would invariably share their food.While some of the principles for avoiding famines had been laid out in the first book of the Bible, they were not always understood. Historical hunger relief efforts were often largely left to religious organizations and individual kindness. Even up to early modern times, political leaders often reacted to famine with bewilderment and confusion. From the first age of globalization, which began in the 19th century, it became more common for the elite to consider problems like hunger in global terms. However, as early globalization largely coincided with the high peak of influence for classical liberalism, there was relatively little call for politicians to address world hunger.In the late nineteenth and early twentieth century, the view that politicians ought not to intervene against hunger was increasingly challenged by campaigning journalists.