My first job was for a food aid contract to the Department of State. I was very very bored, so bored that when we received a boatload of academic papers from various nutrition experts reporting on the state of nutrition in their (mostly African) countries, I read them end to end. Sadly, I was probably the only person who read these papers as our particular contract was very ineffective.
One of the big standouts to me was the paper on Mali, which talked about how after many years of food aid from the US, Mali at that time, in the early 90s, got 80% of its GNP from US Food Aid. It all started with famine relief that then became an enduring ongoing aid effort. Wow.
The other standout for me after reading so many reports was how much the food problems were caused by war, poor infrastructure, and other problems associated with terrible governments. One country was on the sea so had an abundant supply of food but most everyone was starving because the roads were torn up so people couldn't get to the sea and soldiers would take any stored food.
No offense to the guy who wrote the paper but there is a whole field of study on this issue and I'm sure he is smart, but the people I worked with genuinely did try to help. Often help was not in the form of food aid but in the form of trying to change laws that would affect people's food supply or general wealth.