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Dietary value for money? Investigating how the monetary value of diets in the National Diet and Nutrition Survey (NDNS) relate to dietary energy density
2013
Proceedings of the Nutrition Society
Estimating the monetary value of individuals' diets allows investigation into how costs relate to dietary quality. A number of studies (1) (2) , including one in Scotland (3) , have reported a strong negative relationship between diet costs and energy density. Most studies of this type neglect to address the issue of mathematical coupling, where energy is both the numerator in the energy density variable (kJ/g) and the denominator in energy-adjusted diet cost (e.g. E/10 MJ). As a result, the
doi:10.1017/s0029665113003224
fatcat:c2i5gtg7snefbg6drbpjqu37ya