Economic and sanitary crises have great repercussions on access to food and the health of the population. In this context, austerity policies can have devastating effects on social rights. The purpose of this essay is to reflect on the impact of various types of crises on the Human Right to Adequate Food and Nutrition (DHANA) and on Food and Nutritional Security (SAN) of vulnerable populations and to identify of public policies, programs and actions developed based on the relief of the damage caused by the COVID-19 pandemic. From the collection of information carried out in a non-systematic way on government websites and scientific databases, documents were read in full, categorized, and critically analyzed. Three different contexts, Africa, Latin America, and Portugal, are presented by the authors who work in these realities, with the intention of contributing to mitigate the food problems that worsen and are derived from the pandemic situation.