For information on food waste - who wastes food, how much and why, see Understanding Food Waste: Key findings of our recent research on the nature, scale and causes of household food waste, Waste & Resources Action Programme, 2007. Note that this is report is a summary of a series of research projects but that the individual reports are not publicly available. See also this useful overview presentation: The reduction of household food waste, Andrew Parry, WRAP, March 2007. It is also worth searching the WRAP publications pages (type in food waste) for more.