This paper begins by laying out the current state of global food insecurity and malnutrition, including magnitude, trends and future projections. It then explores the implications of climate change and rising bioenergy demand for nutrition. It also examines the direct nutrition effects of rising bioenergy demand, as well as its contribution to rising food prices. A chapter on policy implications provides a number of options for improving food security and nutrition, as well as for addressing the links between climate change and bioenergy demand on the one hand and nutrition on the other.