Africa's economy is rising. Now what happens to it's food?

Over the last 10 years 

Africa's per capita income has grown to be identical to the rest of the worlds. The world is experiencing one of the greatest reductions in poverty. A middle class is finally starting to develop in west Africa. Some of the poorest countries are making rapid progress. Some of the most important questions that have been confronted about the rest of the developing world revolve around food.

The most common questions asked are, "Will the economic growth he broad enough to end the continents tragic famines?". The Bill and Melinda Gates foundation had spent over 3 million in grants on African Culture. They are financing programs to help Africa feed itself. The foundation planning to finance more scientific research that will research better food storage and more mobile phones. They write I'm their annual letter about their work that it can "drive massive property reduction and improve life across the continent. The income that societies devote to food has dropped eventhough the worlds population has grown to 7.3 million. As countries become richer they have less problems feeling themselves. The big problem with African agriculture is that roads are too narrow to transport grains and there is a lack of knowledge about crops. These problems will not fix themselves. Some experts criticize the Gates Foundation and what they are trying to do. Will those Africans who live entirely on starches be able to switch to a varied and more nutritious diet?