Whybrow, S., Horgan, G.W. and Macdiarmid, J.
Public Health Nutrition 20(7), 1248-1256. Cambridge University Press, Cambridge.
Cambridge University Press, Cambridge
Food waste, Food purchasing, Socio-economic deprivation, Recession, Food price rises
||Objective: Consumers in the UK responded to the rapid increases in food prices between 2007 and 2009 partly by reducing the amount of food energy bought. Household food and drink waste has also decreased since 2007, however. This study explored the combined effects of reductions in food purchases and waste between 2007 and 2009 on estimated energy intakes, and dietary energy density.
Design: The amount of energy purchased per adult equivalent was calculated from Kantar WorldPanel household food and drink purchase data for 2007 and 2012. Energy intakes were estimated by adjusting purchase data for food and drink waste, using waste factors specific to the two years scaled for household size.
Subjects: Households in Scotland (n = 2657 in 2007 and 2841 in 2012).
Results: The amount of energy purchased decreased between 2007 and 2012, from 8.6 to 8.2 MJ per adult equivalent per day (p < 0.001). After accounting for the decrease in food waste, estimated energy intake was not significantly different (7.3 and 7.2 MJ per adult equivalent per day for 2007 and 2012 respectively, p = 0.102). Energy density of foods purchased increased slightly from 700 kJ/100g to 706 kJ/100g (p = 0.046).
Conclusions: While consumers in Scotland reduced the amount of energy that they purchased between 2007 and 2012, this was balanced by reductions in household food and drink waste over the same time, resulting in no significant change in net estimated energy intake of food brought into the home