Today marks World Food Day, observed on 16 October each year to raise awareness and take action against worldwide hunger and malnutrition. According to the Food and Agriculture Organization (FAO), almost one in ten people globally are undernourished, and more than 3 billion can't afford a healthy diet. Conflict, climate change and rising prices are all contributing to growing food insecurity around the world. In South Africa, the Department of Social Development says an estimated 27.5% of children are stunted due to malnutrition. For more on this Elvis Presslin spoke to Agricultural Economist, Wandile Sihlobo