The United Nations Food and Agriculture Organisation estimates that about 795 million people, in a world population exceeding 7.3 billion, are living with constant hunger and undernourishment. Poverty is the main cause of hunger, making it unsurprising that an overwhelming majority of people living in famine are also from developing countries. These people can make less than US$1.90 a day, making it near impossible to provide for themselves, lest children or others. These are five shocking hunger facts you need to know.

Check out Mercy Corps for more information about world hunger and what you can do about it.