Due to an increasing global population and changes in diets the impact of food consumption on the world’s ecosystems and their services has become more significant. The purpose of this project has been to investigate how the impact on ecosystem services from Swedish food consumption has changed over time and if this development is sustainable or not. A quantitative assessment of six different environmental impact factors has been carried out for each food category. The project clarifies how Swedish food consumption has developed since the 1960s, the origin of the food that has been consumed, which processes that affect the environment as well as the consequences from these impacts. The result showed that Swedish food consumption has increased considering quantity, that the consumption pattern has changed, and that the import of goods has increased since the 1960s. The average Swede eats more animal-based products such as meat, cheese and cream, along with more vegetable-based products such as fruit and berries, and vegetables. Instead, products such as milk and soured based products has decreased, while products made from flour and grains has stayed unchanged. The project shows that animal-based products, especially from ruminant animals, has a significantly higher ecological footprint in comparison with vegetable-based products, concerning most of the categories mentioned above. Considering that the swedes eat more animal-based products today than in the 1960sthefollowing conclusion, that the Swedish impact on ecosystem services has increased since the 1960s even though food production has become more efficient, could be drawn.

Human food consumption has changed from the late 19th century to the turn of the millennium, and so has the need for resources to sustain this consumption. For the city of Linköping, situated in southeastern Sweden, the environmental imprint of an average inhabitant’s food consumption is studied from the year 1870 to the year 2000. The average consumer is the driving factor in this study, since changes in food consumption have a direct influence on the environmental imprint. This thesis analyses the environmental imprint of human food consumption from a historical perspective, by applying two different methods. An analysis of the average Swedish food consumption creates the basis for a material flow analysis of nitrogen and phosphorus, as well as a study of the spatial imprint. Emissions of nitrogen and phosphorus into the hydrosphere have decreased over this period for the system of food consumption and production for an average consumer, while the input via chemical fertilizer has increased significantly. The efficiency of this system could be increased if for instance more phosphorus in human excreta would be reused within the system instead of large deposition and losses into the hydrosphere. The spatial imprint of human food consumption shows, given the changing local preconditions, that less space would be needed for regional production of the consumed food. However, the share of today’s import and thus globally produced food doubles this spatial imprint. The results of this study show not only a strong influence of the consumption of meat and other animal products on the environmental imprint, but also great potential in the regional production of food. In the context of an increasing urban population, and thus additional billions of people who will live at an increasing distance from the agricultural production land, concern for the direct effects of our human food consumption can be of decisive importance for future sustainable food supply.

Diss. (sammanfattning) Linköping : Linköpings universitet, 2005. / Härtill 5 uppsatser.

Global food production places significant demands on the environment, contributing to climate change and environmental degradation. The transition to sustainable production and consumption systems is therefore critical in meeting the food demands of growing populations while preserving the ecosystem. Supermarkets, as intermediaries between suppliers and consumers, play an important role in promoting sustainable consumption. However, their profit-driven nature has frequently stifled genuine change. The use of tools, such as life cycle assessment (LCA) has recently boomed in the food industry to help combat negative effects of food production. However, the complexity and variability of food production, as well as the tools’ technopolitical considerations, complicate their application to the food value chain, requiring a critical approach. The thesis explored the intersection of these two topics, specifically the sustainability initiatives of Swedish supermarkets and the role of the life cycle perspective in them. The study found that the life cycle perspective does not currently play a significant role in Swedish supermarkets’ sustainability initiatives, with applications primarily limited to generic carbon footprint data. Furthermore, supermarkets were found to promote a weak model of sustainable consumption, with their transformative potential limited by consumer demand and the desire for profit. Nonetheless, the findings revealed a shift in retailer attitudes relative to previous research, with greater recognition of their responsibility and sustainability initiatives in procurement. While more comprehensive and drastic approaches are required for the long-term transformation of the food value chain, shared initiatives and increased standardisation show promise in bringing actors together to achieve this goal. / Den globala livsmedelsproduktionen ställer stora krav på miljön och bidrar till klimatförändringar och miljöförstöring. Övergången till hållbara produktions- och konsumtionssystem är därför avgörande för att möta den växande befolkningens efterfrågan på livsmedel samtidigt som ekosystemet bevaras. Stormarknader, som mellanhänder mellan leverantörer och konsumenter, spelar en viktig roll för att främja hållbar konsumtion. Deras vinstdrivande natur har dock ofta hämmat verklig förändring. Användningen av verktyg som livscykelanalys (LCA) har på senare tid ökat kraftigt inom livsmedelsindustrin för att bekämpa negativa effekter av livsmedelsproduktionen. Men livsmedelsproduktionens komplexitet och variabilitet, liksom verktygens teknopolitiska överväganden, komplicerar deras tillämpning på livsmedelsvärdekedjan och kräver ett kritiskt förhållningssätt. Avhandlingen undersökte skärningspunkten mellan dessa två ämnen, särskilt svenska stormarknaders hållbarhetsinitiativ och livscykelperspektivets roll i dem. Studien visade att livscykelperspektivet för närvarande inte spelar någon betydande roll i svenska stormarknaders hållbarhetsinitiativ, med tillämpningar som främst är begränsade till generiska koldioxidavtrycksdata. Dessutom visade det sig att stormarknaderna främjar en svag modell för hållbar konsumtion, där deras omvandlingspotential begränsas av konsumenternas efterfrågan och önskan om vinst. Resultaten visade dock på en förändring i återförsäljarnas attityder i förhållande till tidigare forskning, med ett större erkännande av deras ansvar och hållbarhetsinitiativ inom upphandling. Även om det krävs mer omfattande och drastiska tillvägagångssätt för en långsiktig omvandling av livsmedelsvärdekedjan, är gemensamma initiativ och ökad standardisering lovande när det gäller att föra samman aktörer för att uppnå detta mål.

In 2022, food prices increased rapidly, prompting this investigation into how the price shock has impacted consumer behavior. Previous studies have found that price shocks affect low- income households with children the most. A switch to more calorie-dense food and a decreased consumption of snacks. This study aims to estimate the price elasticity of various food products and to identify how the elasticities differ among various types of households. The elasticities are calculated using OLS regression on receipt data from Coop. Results show that household variables, including income level, presence of children, shopping location, and organic product preferences, significantly impact the price elasticity of food products. Low-income households without children, living outside major cities and their suburbs, have a higher price elasticity, meaning these shoppers are more sensitive to price changes. The same tendencies were observed for all products even though the exact parameters could only be proven for a third of the products. The findings have important implications for understanding how price changes affect consumer behavior and can inform food policy decisions. / Under 2022 ökade livsmedelspriserna kraftigt, vilket inspirerade denna undersökning av hur prischocken har påverkat konsumenternas beteende. Tidigare studier visar att prischocker har störst påverkan på låginkomsthushåll med barn. Även en övergång till mer kaloririk mat och en minskad konsumption av snacks har observerats. Syftet med denna studie är att uppskatta priselasticiteten för olika livsmedel och identifiera hur elasticiteten skiljer sig åt mellan olika typer av hushåll. Elasticiteterna beräknas med hjälp av en OLS-regression på kvittodata från Coop. Resultaten visar att hushållsvariabler, inklusive inkomstnivå, barn i hushållet, varans inköpsplats och val av ekologiska produkter, påverkar priselasticiteten för livsmedel markant. Hushåll med låg inkomst utan barn, som bor utanför större städer och deras förorter, har en högre priselasticitet, vilket innebär att dessa kunder är mer priskänsliga. Samma tendenser observerades för alla produkter även om de exakta parametrarna endast kunde bevisas för en tredjedel av produkterna. Resultaten har viktiga implikationer för förståelsen av hur prisförändringar påverkar konsumentbeteenden och kan även informera livsmedelspolitiska beslut.