If innovation is the lifeblood of a healthy brand, then getting that innovation right is key to growth. Over the coming year, we are likely to see a swathe of development across the food sector. However, success will hinge on a good understanding of consumer trends. It will identify a growing demand or niche that is yet to be filled. Katy Askew takes a look at some of the key consumer trends that are likely to drive innovation during 2013.