A recent study measured which countries could produce enough food, across seven key food groups, to sustain their own populations. The results showed that only Guyana could be entirely self-sufficient. 

The seven key groups included fruits, dairy, meats, starchy staples, vegetables, fish, and legumes/nuts/seeds. 

Only one out of every seven countries was able to be self-sufficient in five or more of the categories. 

While this doesn't have immediate or urgent implications for mass food shortages around the world, it does reinforce the fact that countries need to continue to work together on global trade and economic partnerships to ensure that their residents are getting all the food and nutrition they need.