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Has it become increasingly expensive to follow a nutritious diet? Insights from a new price index for nutritious diets in Sweden 1980-2012

Håkansson, Andreas LU (2015) In Food and Nutrition Research 59. p.1-9
Abstract

Background: Health-related illnesses such as obesity and diabetes continue to increase, particularly in groups of low socioeconomic status. The increasing cost of nutritious food has been suggested as an explanation. Objective: To construct a price index describing the cost of a diet adhering to nutritional recommendations for a rational and knowledgeable consumer and, furthermore, to investigate which nutrients have become more expensive to obtain over time. Methods: Linear programming and goal programming were used to calculate two optimal and nutritious diets for each year in the interval under different assumptions. The first model describes the rational choice of a cost-minimizing consumer; the second, the choice of a consumer... (More)

Background: Health-related illnesses such as obesity and diabetes continue to increase, particularly in groups of low socioeconomic status. The increasing cost of nutritious food has been suggested as an explanation. Objective: To construct a price index describing the cost of a diet adhering to nutritional recommendations for a rational and knowledgeable consumer and, furthermore, to investigate which nutrients have become more expensive to obtain over time. Methods: Linear programming and goal programming were used to calculate two optimal and nutritious diets for each year in the interval under different assumptions. The first model describes the rational choice of a cost-minimizing consumer; the second, the choice of a consumer trying to deviate as little as possible from average consumption. Shadow price analysis was used to investigate how nutrients contribute to the diet cost. Results: The cost of a diet adhering to nutritional recommendations has not increased more than general food prices in Sweden between 1980 and 2012. However, following nutrient recommendations increases the diet cost even for a rational consumer, particularly for vitamin D, iron, and selenium. The cost of adhering to the vitamin D recommendation has increased faster than the general food prices. Conclusions: Not adhering to recommendations (especially those for vitamin D) offers an opportunity for consumers to lower the diet cost. However, the cost of nutritious diets has not increased more than the cost of food in general between 1980 and 2012 in Sweden.

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author
publishing date
type
Contribution to journal
publication status
published
keywords
Diet cost, Fruit and vegetables, Goal programming, Linear programming, Nutritional intake, Nutritional recommendations, Socioeconomic status, Vitamin D
in
Food and Nutrition Research
volume
59
article number
26932
pages
9 pages
publisher
Co-action Publishing
external identifiers
  • scopus:84926623233
ISSN
1654-6628
DOI
10.3402/fnr.v59.26932
language
English
LU publication?
no
id
9affd511-0d49-49f1-b32e-905504d5d9fb
date added to LUP
2019-03-11 13:05:45
date last changed
2020-03-24 06:42:02
@article{9affd511-0d49-49f1-b32e-905504d5d9fb,
  abstract     = {<p>Background: Health-related illnesses such as obesity and diabetes continue to increase, particularly in groups of low socioeconomic status. The increasing cost of nutritious food has been suggested as an explanation. Objective: To construct a price index describing the cost of a diet adhering to nutritional recommendations for a rational and knowledgeable consumer and, furthermore, to investigate which nutrients have become more expensive to obtain over time. Methods: Linear programming and goal programming were used to calculate two optimal and nutritious diets for each year in the interval under different assumptions. The first model describes the rational choice of a cost-minimizing consumer; the second, the choice of a consumer trying to deviate as little as possible from average consumption. Shadow price analysis was used to investigate how nutrients contribute to the diet cost. Results: The cost of a diet adhering to nutritional recommendations has not increased more than general food prices in Sweden between 1980 and 2012. However, following nutrient recommendations increases the diet cost even for a rational consumer, particularly for vitamin D, iron, and selenium. The cost of adhering to the vitamin D recommendation has increased faster than the general food prices. Conclusions: Not adhering to recommendations (especially those for vitamin D) offers an opportunity for consumers to lower the diet cost. However, the cost of nutritious diets has not increased more than the cost of food in general between 1980 and 2012 in Sweden.</p>},
  author       = {Håkansson, Andreas},
  issn         = {1654-6628},
  language     = {eng},
  month        = {04},
  pages        = {1--9},
  publisher    = {Co-action Publishing},
  series       = {Food and Nutrition Research},
  title        = {Has it become increasingly expensive to follow a nutritious diet? Insights from a new price index for nutritious diets in Sweden 1980-2012},
  url          = {http://dx.doi.org/10.3402/fnr.v59.26932},
  doi          = {10.3402/fnr.v59.26932},
  volume       = {59},
  year         = {2015},
}