Food insecure is when food intake of one or more household members was reduced and their eating patterns were disrupted at times during the year because the household lacked money and other resources for food. Food security statistics is measured by using survey data, based on household responses to items about whether the household was able to obtain enough food to meet their needs. World statistics
The United Nations publish an annual report on the state of food security and nutrition across the world. Led by the FAO, the 2020 report was joint authored by four other UN agencies: the WFP, IFAD, WHO and UNICEF. Compared to older reports, the 2020 version revised down the numbers of people suffering from severe hunger, though this applied to figures for each year going back to 2000, so the trend for hunger to have increased since 2014 was still evident. The FAOs yearly report provides a statistical overview on the prevalence of hunger around the world, and is widely considered the main global reference for tracking hunger. No simple set of statistics can ever fully capture the multi dimensional nature of hunger however. Reasons include that the FAOs key metric for hunger, "undernourishment", is defined solely in terms of dietary energy availability – disregarding micro-nutrients such as vitamins or minerals.
Sens 1981 essay Poverty and Famines: An Essay on Entitlement and Deprivation played a prominent part in forging the new consensus.In 2007 and 2008, rapidly increasing food prices caused a global food crisis. Food riots erupted in several dozen countries; in at least two cases, Haiti and Madagascar, this led to the toppling of governments. A second global food crisis unfolded due to the spike in food prices of late 2010 and early 2011. Fewer food riots occurred, due in part to greater availability of food stock piles for relief. However, several analysts argue the food crisis was one of the causes of the Arab Spring. Efforts since the global 2008 crisis
In the early 21st century, the attention paid to the problem of hunger by the leaders of advanced nations such as those that form the G8 had somewhat subsided. Prior to 2009, large scale efforts to fight hunger were mainly undertaken by governments of the worst affected countries, by civil society actors, and by multilateral and regional organizations. In 2009, Pope Benedict published his third encyclical, Caritas in Veritate, which emphasised the importance of fighting against hunger. The encyclical was intentionally published immediately before the July 2009 G8 Summit to maximise its influence on that event.