"African countries have always struggled to participate fully in this organisation. They are unable to influence its decisions, running the risk of not having their concerns heard and having inadequate multilateral rules on public policy elaboration imposed upon them. They have many obstacles before them. In addition to their under-representation at WTO headquarters because of insufficient economic and human resources, there is the complexity of WTO bodies, rules and procedures, and the difficulty understanding the stakes behind development choices." (Thanks Muna)
And they're not alone: I'm struggling with WTO and food too. Maybe this can help.