Cited by 928Food Waste Reduction and SustainabilityAgriculture Sustainability and Environmental ImpactWaste Management and Recycling

Drivers of food waste and their implications for sustainable policy development

Open access
Thyberg, Krista L., Tonjes, David J.·2016·Resources, Conservation and Recycling

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Written from the paper’s full text.

TL;DR

This review synthesizes drivers of residential, institutional, and commercial food waste in developed countries, especially the U.S., linking food-system modernization, culture, socio-demographics, and policy to wastage behaviors. It argues that prevention policies should be multi-faceted, targeting Values, Skills, and Logistics, though evaluations of such policies remain scarce.

Key findings

  • In the U.S., food waste makes up nearly 15 percent of the disposed municipal waste stream, and Americans dispose over 0.6 pounds of food waste per person per day; globally, one third of the edible parts of food produced for human consumption is lost or wasted.
  • The resource burden is large: production of lost and wasted food globally accounts for 24 percent of total freshwater used in food production, 23 percent of global cropland, and 23 percent of global fertilizer use; in the U.S., wasted food requires over 25 percent of total freshwater, about 300 million barrels of oil, and 2 percent of annual energy consumption, with 112.92 million metric tons of CO2 equivalent per year emitted from avoidable food waste.
  • Drivers include food-system modernization (industrialization, economic growth, urbanization, globalization), cultural factors, socio-demographic factors, and policies that mandate disposal or impede redistribution; behaviors include over-preparation, spoilage, date-label confusion, and large portion sizes. For example, reducing hotel plate size reduced food waste by 19.5 percent, and in the U.K. 40 percent of household food waste was due to preparing and serving more food than could be consumed.
  • Prevention is presented as the highest-benefit waste management approach, requiring a package of policies addressing Values, Skills, and Logistics; avoidable food waste estimates vary widely, including 34 percent avoidable in Sweden, 47 percent avoidable plus 18 percent partially avoidable in Germany, 60 percent avoidable in the U.K., and 54 percent avoidable plus 12 percent partially avoidable in New Zealand.

Methods

  • Narrative review synthesizing prior literature on food waste definitions, history, quantification, drivers, behaviors, and policy approaches, with emphasis on developed countries and particularly the U.S.
  • Draws on published estimates and secondary data, including countrywide and global food loss/waste estimates, economic cost estimates, modernization effects, and potential prevention policies; no primary data collection or systematic review protocol is reported.
  • Main analysis is thematic synthesis linking food-system drivers and behavioral/attitudinal factors to proposed prevention mechanisms.

Limitations

  • The paper states that evaluations of food waste prevention policies are scarce, little quantitative work has assessed their environmental impacts, it is difficult to demonstrate a consistent direct link between specific policy mechanisms and measured prevention results, and many initiatives are still in early stages so comprehensive data are not yet available.
  • It also notes definitional issues, absence of sound quantification methods, and lack of political will have led to considerable data gaps, and there is no clear consensus on which socio-demographic factors relate to more waste or on attitudes toward food waste.
  • Evident from the text: as a narrative review, it does not conduct a systematic search or meta-analysis, and its proposed Values–Skills–Logistics policy package is synthesized from existing literature rather than empirically tested.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.1016/j.resconrec.2015.11.016

Cites

104 of 104 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

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  • Findingcitation

    Globally, one third of the edible parts of food produced for human consumption is lost or wasted.

    “Globally, it has been estimated that one third of the edible parts of food produced for human consumption is lost or wasted (Gustavsson et al. 2011).”
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  • Findingcitation

    In landfills, food waste converts to methane, a greenhouse gas with a global warming potential 25 times greater than carbon dioxide on a 100 year time scale.

    “In landfills, food waste converts to methane, a greenhouse gas with a global warming potential 25 times greater than carbon dioxide on a 100 year time scale (IPCC 2007).”
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  • Findingcitation

    The amount of food waste disposed in the U.S. has been increasing over time.

    “The amount of food waste disposed has been increasing over time (Thyberg et al. 2015).”
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  • Interpretationcitation

    Reducing food waste will improve future food availability in the context of global population growth and increasing resource scarcity.

    “Reducing food waste will improve future food availability in the context of global population growth and increasing resource scarcity (Buzby et al. 2014, Godfray et al. 2010, Pearson et al. 2013).”
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  • Interpretationcitation

    In the developed world, particularly the U.S., increases in the volume, availability, accessibility, affordability, and caloric density of food have led to increased overconsumption and waste.

    “In the developed world, particularly the U.S., increases in the volume, availability, accessibility (Rozin 2005), affordability, and caloric density of food have led to increased overconsumption and waste (Blair and Sobal 2006).”
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    Findingcitation

    The production of lost and wasted food globally accounts for 24 percent of total freshwater resources used in food production, 23 percent of global cropland, and 23 percent of global fertilizer use.

    “The production of this lost and wasted food globally has been estimated to account for 24 percent of total freshwater resources used in food production, 23 percent of global cropland, and 23 percent of global fertilizer use (Kummu et al. 2012).”
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    Findingcitation

    In the U.S., the production of wasted food requires over 25 percent of total freshwater used, about 300 million barrels of oil, and represents two percent of annual energy consumption.

    “In the U.S., the production of wasted food requires the expenditure of over 25 percent of the total freshwater used in the U.S., about 300 million barrels of oil (Hall et al. 2009), and represents two percent of annual energy consumption (Cuellar and Webber 2010).”
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    Interpretationcitation

    Food waste generation is a function of cultural, personal, political, geographic, and economic forces that influence behavior in specific ways, and it may differ from person to person, year to year, or from society to society.

    “Therefore, food waste generation is a function of cultural, personal, political, geographic, and economic forces that influence behavior in specific ways (Pearson et al. 2013) and it may differ from person to person, year to year, or from society to society.”
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    Interpretationcitation

    Food waste tends to degrade faster than other landfilled organic materials, has a high methane yield, and does not contribute to considerable biogenic sequestration in landfills; therefore, reducing the amount of food waste landfilled should be a priority.

    “Food waste tends to degrade faster than other landfilled organic materials, has a high methane yield, and does not contribute to considerable biogenic sequestration in landfills (Levis and Barlaz 2011); therefore, reducing the amount of food waste landfilled should be a priority.”
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    Premisecitation

    Higher incomes are associated with a more varied diet, and growth in household incomes is associated with a decline in starchy food staples and a diversification of diet toward more meats, dairy, fish, and poultry.

    “Growth in household incomes is associated with a decline in starchy food staples and a diversification of diet toward more meats, dairy, fish, and poultry (Fischler 1999, Parfitt et al. 2010), per Bennett's Law (food share of starchy staples decreases as income increases) (Bennett 1941).”
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    Premisecitation

    Urbanization is expected to continue increasing globally; one estimate was that 70 percent of people worldwide will live in urban environments by 2015.

    “Urbanization is expected to continue increasing globally; one estimate was 70 percent of people worldwide will live in urban environments by 2015 (United Nations 2008).”
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    Interpretationreasoning

    Since food sources are not local, there are more opportunities to market diverse foods different from those grown locally.

    “Since food sources are not local, there are more opportunities to market diverse foods, different from those grown locally.”
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    Interpretationreasoning

    Urbanization leads to diet diversification and a disconnection from food sources, which may increase food waste.

    “It leads to diet diversification and a disconnection from food sources which ultimately may increase food waste.”
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    Premisecitation

    Definitions of food waste are not universally agreed upon, which makes studying and quantifying food waste difficult.

    “Definitions of food waste are not universally agreed upon (Lebersorger and Schneider 89 2011), which makes studying and quantifying food waste difficult (Buzby and Hyman 2012).”
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    Premisecitation

    Western diets, with vulnerable, shorter shelf-life foods, are associated with greater food waste and a greater drain on environmental resources.

    “Western diets, with vulnerable, shorter shelf-life foods, are associated with greater food waste and a greater drain on environmental resources (Lundqvist et al. 2008).”
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    Interpretationreasoning

    There are far fewer farms and farmers in urbanized areas, so fewer people interact directly with agricultural processes or live near food production, hindering knowledge about food origins.

    “There are far fewer farms and farmers in urbanized areas, so fewer people interact directly with agricultural processes or live near places where food is produced, hindering knowledge about food origins.”
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    Premisecitation

    In wealthy countries, such as the U.S., food is relatively inexpensive compared to other expenses and people can afford to waste food.

    “In wealthy countries, such as the U.S., food is relatively inexpensive compared to other expenses (e.g., housing) and people can afford to waste food (Pearson et al. 2013).”
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    Interpretationcitation

    Industrialization of food systems affects the foods people consume, the types and quantities of food waste, and contributes to increased physical distancing of people from food production and preparation.

    “Industrialization of food systems, which results in a transition of food production and preparation from the home to factory and from handcraft to purchasing (Strasser 1999), affects the foods that people consume, the types and quantities of food waste, and contributes to increased physical distancing of people from food production and preparation.”
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    Premisecitation

    Disconnection from food means people have no sense of what their food is made of or how it was produced.

    “This promotes disconnections from food (Parfitt et al. 2010), so that people have no sense of what their food is made of or how it was produced (Fischler 1999).”
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    Premisecitation

    Food supply globalization was made possible by social and technological changes occurring after food supply industrialization.

    “Food supply globalization was made possible by social and technological changes occurring after food supply industrialization (Robertson 1990).”
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    Interpretationreasoning

    The difference in Spanish and U.K. managers' views is possibly due to recent campaigns in the U.K. emphasizing food waste as a problem.

    “This is possibly due to recent campaigns in the U.K. emphasizing food waste as a problem.”
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    Premisecitation

    Countries such as France have deep food cultures which are deeply embedded in culture and which have been developed over long periods of time.

    “Countries such as France have deep food cultures which are deeply embedded in culture and which have been developed over long periods of time (Gatley et al. 2014).”
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    Premisecitation

    Culture plays a fundamental role in shaping food, eating, and nutrition, as well as waste generation.

    “Culture plays a fundamental role in shaping food, eating, and nutrition (Rozin 2005, Sobal 1998), as well as waste generation.”
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    Premisecitation

    The U.S. has an unhealthy relationship with food, and overall, the U.S. food culture places little value on food, leading to waste.

    “Bloom (2010) has argued that the U.S. has an unhealthy relationship with food, and overall, the U.S. food culture places little value on food, leading to waste.”
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    Premisecitation

    Surveys of attitudes and behaviors have shown some correlations between food wasting behaviors and certain socio-demographic characteristics, although there is no clear consensus regarding which socio-demographic factors relate to more waste.

    “Surveys of attitudes and behaviors have shown some correlations between food wasting behaviors and certain socio-demographic characteristics (Pearson et al. 2013), although there is no clear consensus regarding which socio-demographic factors relate to more waste.”
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    Premisecitation

    Spanish retail food managers did not see food wastage as a major problem, but managers in the U.K. placed waste on a higher agenda.

    “Mena et al. (2015) found that Spanish retail food managers did not see food wastage as a major problem, but managers in the U.K. placed waste on a higher agenda.”
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    Premisecitation

    French attitudes toward food tend to emphasize moderation and quality, rather than abundance and quantity as in the U.S.

    “French attitudes toward food tend to emphasize moderation and quality, rather than abundance and quantity as in the U.S. (Rozin 2005).”
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    Premisecitation

    New dietary patterns reflect global patterns and may differ significantly from traditional food practices, particularly because non-local foods are available and there is an overall increase in the range and quantities of available foods.

    “New dietary patterns reflect global patterns and may differ significantly from traditional food practices, particularly because non-local foods are available for consumption and there is an overall increase in the range and quantities of available foods (Pingali and Khwaja 2004).”
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    Interpretationreasoning

    Understanding demographic patterns can lead to a better understanding of how wastage patterns may change as demographics change.

    “Understanding demographic patterns can lead to a better understanding of how wastage patterns may change as demographics change (e.g., ageing populations).”
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    Premisecitation

    Food now travels long distances and to more supermarkets in place of small, local markets, so consumers purchase more non-local foods.

    “Food now travels long distances (Pretty et al. 2005), and to more supermarkets in place of small, local markets, and so consumers purchase more non-local foods.”
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    Premisecitation

    In Australia, food waste fell sharply as age increased; among 18 to 24 year olds, 38 percent of respondents wasted more than $30 (Australian) on fresh food over two weeks, compared to seven percent of people aged 70 and up.

    “In Australia, food waste fell sharply as age increased; among 18 to 24 year olds, 38 percent of respondents wasted more than $30 (Australian) on fresh food over two weeks, compared to seven percent of people aged 70 and up (Hamilton et al. 2005).”
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    Premisecitation

    People from different cultures regard different foods and food parts as edible, and throw different parts away.

    “People from different cultures regard different foods and food parts as edible, and throw different parts away (Strasser 1999).”
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    Premisecitation

    Some cultures, particularly the U.S. and Australia, have weak food traditions of their own, meaning there are few longstanding rules and rituals about what to eat and when to eat it, and there are weak connections between the production and preparation of food and its consumption.

    “Pollan (2007) points out that some cultures, particularly the U.S. and Australia, have weak food traditions of their own, meaning there are few longstanding rules and rituals about what to eat and when to eat it, and there are weak connections between the production and preparation of food and its consumption.”
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    Interpretationreasoning

    Changes in diets spurred by globalization affect the type of food that is disposed; people may be more likely to waste food as they do not have a deep connection and understanding of it.

    “Changes in diets spurred by globalization affect the type of food that is disposed; people also may be more likely to waste food as they do not have a deep connection and understanding of it.”
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    Premisecitation

    In developing countries, consumers generally buy smaller amounts of food each time they shop compared to developed countries, often just enough for meals that day, which may reduce waste.

    “In developing countries, consumers generally buy smaller amounts of food each time they shop (compared to developed countries), often just enough for meals that day (Pearson et al. 2013), which may reduce waste.”
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    Interpretationnone given

    Food safety inspections or food labeling requirements mandate the disposal of food that is not allowed to be sold or consumed, such as food that is improperly labeled or inadequately stored.

    “Food safety inspections or food labeling requirements mandate the disposal of food that is not allowed to be sold or consumed, such as food that is improperly labeled or inadequately stored.”
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    Premisenone given

    The USDA and the European Union have recognized that food safety policies contribute to waste, but consider human health protection the primary concern.

    “The USDA and the European Union (EU) have recognized that food safety policies contribute to waste, but consider human health protection the primary concern.”
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    Premisecitation

    There is no clear consensus on attitudes toward food waste, although food waste awareness has been shown to reduce waste.

    “There is no clear consensus on attitudes toward food waste, although food waste awareness has been shown to reduce waste (Parizeau et al. 2015).”
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    Premisecitation

    Koivupuro et al. (2012) found no significant difference in waste per capita based on household size, but people that lived alone generated the most waste per capita.

    “Koivupuro et al. (2012) found no significant difference in waste per capita based on household size, but people that lived alone generated the most waste per capita.”
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    Premisecitation

    Cohen et al. (2014) evaluated plate waste at several schools before and after the 2012 standards were implemented, and found substantial amounts of food waste both before and after the 2012 policy.

    “However, Cohen et al. (2014) evaluated plate waste at several schools before and after the 2012 standards were implemented, and found substantial amounts of food waste both before and after the 2012 policy.”
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    Premisecitation

    Schwartz et al. (2015) found that the standard reduced plate waste in middle schools.

    “Schwartz et al. (2015) found that the standard reduced plate waste in middle schools; so, it is unclear whether the standard causes increased food wastage.”
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    Premisecitation

    Others found little or no correlation between income and food wastage.

    “However, others found little or no correlation between income and food wastage (Koivupuro et al. 2012, Van Garde and Woodburn 1987, Wenlock et al. 1980).”
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    Premisecitation

    Lower food waste has been found in low-income compared to high-income households, and food waste has also been shown to increase with household income.

    “Lower food waste has been found in low-income compared to high-income households (Cox andDowning 2007, WasteMinz 2014) and food waste has also been shown to increase with household income (Baker et al. 2009).”
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    Interpretationreasoning

    Policies that contribute to food waste aim to achieve some overall benefit such as food safety or enhanced nutrition, but they may also lead to increased food wastage.

    “These policies aim to achieve some overall benefit (food safety or enhanced nutrition), but they may also lead to increased food wastage.”
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    Premisecitation

    The 2010 Healthy, Hunger-Free Kids Act has been criticized for leading to substantially more food waste because students dislike the new meals and are throwing away fruits and vegetables that they are required to take.

    “This policy has been criticized for leading to substantially more food waste because students dislike the new meals and are throwing away fruits and vegetables that they are required to take (Jalonick 2014).”
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    Interpretationnone given

    Cultural, political, economic, geographic, and sociodemographic drivers may cause food waste behaviors, but so can personal preference, values, and attitudes.

    “Cultural, political, economic, geographic, and sociodemographic drivers described in section 4 may cause the behaviors, but so can personal preference, values, and attitudes.”
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    Premisecitation

    Older participants felt that wasting food was wrong, which may be based on the fact that many people of this age group experienced austerity and food rationing during World War II, establishing attitudes against wastefulness.

    “These older participants felt that wasting food was wrong, which may be based on the fact that many people of this age group experienced austerity and food rationing during World War II, establishing attitudes against wastefulness (Quested et al. 2013).”
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    Premisecitation

    Larger households waste less per capita than smaller households, especially those where people live alone.

    “Larger households waste less per capita than smaller households (Baker et al. 2009, Parizeau et al. 2015, WasteMinz 2015, Williams et al. 2012), especially those where people live alone (WasteMinz 2014).”
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    Premisecitation

    Specific causes of retail and institutional food waste include unpurchased specialty holiday food, damaged packaging, damaged or inadequately prepared items, overstocking or over-preparation of food, routine kitchen preparation waste, and out-grading/quality control.

    “Specific causes include (1) unpurchased specialty holiday food; (2) damaged packaging; (3) damaged or inadequately prepared items; (4) overstocking or over-preparation of food; (5) routine kitchen preparation waste; and (6) out-grading/quality control (Buzby and Hyman 2012).”
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    Premisecitation

    Over-provisioning is both intentional and unintentional, as cooks may find it difficult to estimate how much to cook, but they also would rather prepare too much food than not enough.

    “Over-provisioning is both intentional and unintentional, as cooks may find it difficult to estimate how much to cook, but they also would rather prepare too much food than not enough (Pearson et al. 2013).”
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    Premisecitation

    In the home, wastes may be generated due to preparing too much food or preparing food inadequately.

    “In the home, wastes may be generated due to preparing too much food (Koivupuro et al. 2012) or preparing food inadequately.”
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    Interpretationnone given

    People may lack the skills to prepare food well, or to reuse leftovers.

    “People may lack the skills to prepare food well, or to reuse leftovers.”
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    Premisecitation

    Food is commonly purchased without much thought as to how it will be used, which can contribute to wastage.

    “Food is commonly purchased without much thought as to how it will be used (Gustavsson et al. 2011) which can contribute to wastage.”
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    Premisecitation

    In food service, plate waste is a significant contributor to food waste, and results from large portion sizes and undesired accompaniments.

    “In food service, plate waste is a significant contributor to food waste (NRDC 2012), and results from large portion sizes and undesired accompaniments.”
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    Premisecitation

    These large portions encourage both waste and obesity.

    “These large portions encourage both waste and obesity (Young and Nestle 2002).”
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  • May combine two claims.

    Interpretationreasoning

    Differences in wastage across commodity types may be attributed to packaging differences, susceptibility to damage, and the public's knowledge and familiarity with certain foods.

    “These differences may be attributed to packaging differences, susceptibility to damage, and the public's knowledge and familiarity with certain foods.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    Overstocking is an issue because retailers would rather put more stock out than run out of items and restaurants prefer to have a wide array of available menu options.

    “Overstocking also is an issue because retailers would rather put more stock out than run out of items and restaurants prefer to have a wide array of available menu options (Stuart 2009).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Stuart 2009

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    In U.S. supermarkets, the percentage of fresh produce delivered that was not sold for any reason ranged from 2.2 percent for sweet corn to 62.9 percent for turnip greens; the range for fruits was smaller, from 4.1 percent for bananas to 43.1 percent for papaya.

    “Buzby et al. (2015) found that in U.S. supermarkets, the percentage of fresh produce delivered to U.S. supermarkets that was not sold for any reason ranged from 2.2 (sweet corn) to 62.9 (turnip greens) percent; the range for fruits was smaller, ranging from 4.1 (bananas) to 43.1 (papaya) percent.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Buzby et al. (2015) source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Poor planning at the shopping stage leads to over-provisioning and impulse or bulk purchases, which are significant contributors to food waste.

    “Poor planning at the shopping stage leads to over-provisioning and impulse or bulk purchases (Koivupuro et al. 2012), which are significant contributors to food waste (Pearson et al. 2013).”
    Quote in the paperNot a substantial claim0 of 2 sources checked
    • cites Koivupuro et al. 2012 source

      Not checked in the free run.

    • cites Pearson et al. 2013

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S3 (load-bearing). May combine two claims.

    Premisecitation

    Some work has found a lack of concern and awareness regarding food waste and a perception that food waste prevention is not a priority.

    “Some work has found a lack of concern and awareness regarding food waste (Buzby et al. 2011, Pearson et al. 2013) and a perception that food waste prevention is not a priority (Graham-Rowe et al. 2014).”
    Quote in the paperNot a substantial claim0 of 3 sources checked
    • cites Buzby et al. 2011 source

      Not checked in the free run.

    • cites Pearson et al. 2013

      Not checked in the free run.

    • cites Graham-Rowe et al. 2014 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable). May combine two claims.

    Interpretationreasoning

    A package of prevention policies are necessary to prevent food waste; they should encompass three key aspects: Values, Skills, and Logistics.

    “It can be concluded that a package of prevention policies are necessary to prevent food waste; they should encompass three key aspects: Values, Skills, and Logistics.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    Confusion and general misconceptions about food safety and high sensitivities to food safety are contributors to food waste.

    “This confusion and general misconceptions about food safety and high sensitivities to food safety are contributors to food waste (Pearson et al. 2013).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Pearson et al. 2013

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable). May combine two claims.

    Interpretationnone given

    Food waste is a complex, interdisciplinary, and international issue which can have profound effects for global sustainability.

    “This paper demonstrated that food waste is a complex, interdisciplinary, and international issue which can have profound effects for global sustainability.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    Food spoilage due to improper or suboptimal storage, poor visibility in refrigerators, and partially used ingredients leads to wastage.

    “Food spoilage due to improper or suboptimal storage, poor visibility in refrigerators, and partially used ingredients, leads to wastage (NRDC 2012).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites NRDC 2012

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    National circumstances and cultural norms have been linked to food wastage, so wastage patterns may differ from region to region and country to country.

    “National circumstances and cultural norms have also been linked to food wastage (BioIntelligence Service 2011), so wastage patters may differ from region to region and country to country.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites BioIntelligence Service 2011

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationreasoning

    Values involves addressing values and perceptions which drive behavior.

    “The first aspect, Values, involves addressing values and perceptions which drive behavior.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    State rules vary in coverage and what the dates mean, which leads to consumer confusion, and often results in safe, edible food being thrown away.

    “State rules vary in coverage and what the dates mean which leads to consumer confusion (Kosa et al. 2007), and often results in safe, edible food being thrown away.”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Kosa et al. 2007 source

      Not checked in the free run.

  • May combine two claims.

    Interpretationcitation

    Portion sizes in the home, as measured in the sizes of bowls, glasses, and dinner plates, and serving sizes as presented in cookbooks, have been increasing.

    “Portion sizes in the home, as measured in the sizes of bowls, glasses, and dinner plates, and serving sizes as presented in cookbooks, have been increasing.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    A survey of U.K. households found 47 percent more fresh food was wasted compared to frozen foods because fresh food spoils faster.

    “A survey of U.K. households found 47 percent more fresh food was wasted compared to frozen foods because fresh food spoils faster (Martindale 2014).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Martindale 2014 source

      Not checked in the free run.

  • Classified as probably not a substantial claim. May combine two claims.

    Premisecitation

    Values policy options should address identified concerns regarding food wastage, which include: food waste is a waste of resources; wasting food is wrong and yields feelings of guilt; and food waste negatively impacts the environment.

    “Values policy options should address identified concerns regarding food wastage, which include: (1) food waste is a waste of resources (money and edible food); (2) wasting food is wrong (WasteMinz 2014) and yields feelings of guilt (Graham-Rowe et al. 2014); and (3) food waste negatively impacts the environment (Doron 2013).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites WasteMinz 2014

      Not checked in the free run.

    • cites Graham-Rowe et al. 2014 source

      Not checked in the free run.

    • cites Doron 2013

      Not checked in the free run.

  • Classified as probably not a substantial claim. May combine two claims.

    Premisecitation

    It is necessary to address multiple prevention mechanisms simultaneously because prevention is not created by one, but by many behaviors.

    “It is necessary to address multiple prevention mechanisms simultaneously because prevention is not created by one, but by many behaviors (Cox et al. 2010).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Cox et al. 2010 source

      Not checked in the free run.

  • May combine two claims.

    Interpretationreasoning

    There are an array of attitudes, preferences, values, and behaviors toward food which contribute to the propensity to waste food at residential, institutional, and commercial sectors; these factors may differ from person to person.

    “Sections 4 and 5 demonstrated that there are an array of attitudes, preferences, values, and behaviors toward food which contribute to the propensity to waste food at residential, institutional, and commercial sectors; these factors may differ from person to person.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    Waste prevention requires changes in people's behavior, both collectively and individually.

    “Waste prevention requires changes in people's behavior, both collectively (e.g., companies) and individually (BioIntelligence Service 2011, Wilson 1996).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites BioIntelligence Service 2011

      Not checked in the free run.

    • cites Wilson 1996 source

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable). May combine two claims.

    Interpretationreasoning

    Examination of the diverse range of food wastage drivers and behaviors provides insight into the best ways to achieve successful food waste prevention, which possibly can reverse the trend of increased food wastage.

    “Examination of the diverse range of food wastage drivers and behaviors provides insight into the best ways to achieve successful food waste prevention, which possibly can reverse the trend of increased food wastage.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    Large quantities of food are currently wasted, and food waste disposal has been shown to increase with time.

    “Table 4 illustrated that large quantities of food is currently wasted, and food waste disposal has been shown to increase with time (Thyberg et al. 2015).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Thyberg et al. 2015

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable).

    Premisecitation

    People should be trained in food management skills to empower them to reduce waste.

    “Graham-Rowe (2014) also determined that people should be trained in food management skills to empower them to reduce waste.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Graham-Rowe (2014) source

      Not checked in the free run.

  • Classified as probably not a substantial claim. May combine two claims.

    Premisecitation

    Data from monitoring and evaluation can serve as critical resources for designing future waste prevention programs and improving existing programs.

    “These data can serve as critical resources for designing future waste prevention programs and improving existing programs (Thyberg and Tonjes 2015).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Thyberg and Tonjes 2015

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Packaging may be used to increase product protection, facilitate temperature control, or prevent damage during distribution.

    “Packaging may be used to increase product protection, facilitate temperature control, or prevent damage during distribution (Verghese et al. 2015).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Verghese et al. 2015 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Logistical barriers to donation may be substantial, but they can be overcome to some degree with strong coordination efforts.

    “Logistical barriers to donation may be substantial (Schneider 2013b), but they be overcome to some degree with strong coordination efforts.”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Schneider 2013b

      Not checked in the free run.

  • Probably not a substantial claim: may not pass S2 (checkable).

    Interpretationcitation

    Better employee training could address this skill-deficit.

    “Better employee training could address this skill-deficit.”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Premisecitation

    Improving forecasting practices and using up-to-date data mining models can reduce forecast error and ultimately wastage.

    “Improving forecasting practices and using up-to-date data mining models are examples of logistical improvements which can reduce forecast error and ultimately wastage (Mena et al. 2011).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Mena et al. 2011 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Logistical improvements at the institutional level, particularly schools, include enabling the storage of intact food for later use, modification of policies which encourage waste, and changes to daily operations.

    “Logistical improvements at the institutional level, particularly schools, which have been identified include enabling the storage of intact food for later use, modification of policies which encourage waste (e.g., mandating students take certain foods), and changes to daily operations (e.g., increasing time students have to eat) (Blondin et al. 2015).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites Blondin et al. 2015 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Logistics facilitates food waste prevention and minimizes inconvenience, both of which have been identified as key aspects of successful food waste prevention programs.

    “The final aspect of a policy package is Logistics which facilitates food waste prevention and minimizes inconvenience, both of which have been identified as key aspects of successful food waste prevention programs (Graham-Rowe et al. 2014).”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites Graham-Rowe et al. 2014 source

      Not checked in the free run.

  • Classified as probably not a substantial claim.

    Interpretationreasoning

    Waste prevention in general has frequently been ignored in waste management.

    “Waste prevention in general has frequently been ignored in waste management, as signaled by states that define waste goals in terms of recycling or diversion, rather than using indicators that capture prevention success.”
    Quote in the paperSubstantial claim
79 of 79
  • The paper relies on this without support.

    In the U.S., food waste makes up nearly 15 percent of the disposed municipal waste stream and Americans dispose over 0.6 pounds of food waste per person per day.

    “In the U.S., food waste makes up nearly 15 percent of the disposed municipal waste stream and Americans dispose over 0.6 pounds of food waste per person per day.”
  • The paper relies on this without support.

    Wasted food is a considerable component of the world's food system challenges.

    “Wasted food is a considerable component of the world's food system challenges.”
  • The paper relies on this without support.

    Food waste prevention policies can substantially reduce the amount of food waste disposed.

    “Food waste prevention policies can substantially reduce the amount of food waste disposed”
  • The paper relies on this without support.

    Data on the proportion of disposed food waste that is avoidable are lacking in the U.S.

    “More studies documenting the proportion of disposed food waste that is avoidable would be beneficial, especially in the U.S. where data are lacking.”
  • The paper relies on this without support.

    Food waste prevention has not yet become mainstream in the U.S. or abroad.

    “However, food waste prevention has not yet become mainstream in the U.S. or abroad.”
  • The paper relies on this without support.

    Wastage of food is a widespread phenomenon globally.

    “Wastage of food is a widespread phenomenon globally”
  • The paper relies on this without support.

    Food waste generation will continue growing if not curbed by prevention policies.

    “it is likely that food waste generation will continue growing if not curbed by prevention policies”
7 of 7

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

1 retracted

Flagged first, then by citations

Research works printed but not linked: 6

  1. Adelson, 1963, Discard of edible food in households, J. Home Econ., 55, 633
  2. Conveney, 2012, ‘Savoir Fare’: are cooking skills a new mortality?, Austr. J. Adult Learn., 52, 617
  3. Drewnowski, 1999, Chapter 10: fat and sugar in the global diet
  4. Fischler, 1999, Chapter 11: the ‘mad cow’ crisis: a global perspective
  5. Sobal, 1999, Chapter 9: food system globalization, eating transformations, and nutrition transitions
  6. Williamson, 1942, What we eat, Agric. Appl. Econ. Assoc., 24, 698

Cited by

Sorted by citations

Authors
Thyberg, K. L., & Tonjes, D. J.
Affiliations
Stony Brook University (US)
Corresponding author
Thyberg, Krista L.
Venue
Resources, Conservation and Recycling
Publisher
Elsevier BV
Published
2016-01
Volume
106
Pages
110-123
ISSN
0921-3449 (ISSN-L)
OpenAlex
W2192017595
Cited by
928
References
104
Citations by year
2026: 66 · 2025: 110 · 2024: 102 · 2023: 112 · 2022: 116 · 2021: 115 · 2020: 114 · 2019: 87 · 2018: 51 · 2017: 30 · 2016: 22 · 2015: 1
FWCI
46.29
Type
journal article
Language
en
Locations
  • Resources Conservation and Recycling (publishedVersion)
  • Academic Commons (Stony Brook University) (submittedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • U.S. Environmental Protection Agency
  • U.S. Food and Drug Administration
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Food Waste Reduction and Sustainability
  • Physical Sciences › Environmental Science › Ecology › Agriculture Sustainability and Environmental Impact
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Waste Management and Recycling
Keywords
food waste, food waste prevention, food waste recovery, urbanization, globalization, economic growth, consumer behavior, waste management policy, food security, resource conservation, developed countries

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Claims read by deepseek-v4.1-flash under definition version 3 (extract-v3) on 2026-10-10.

Classified by jev-1.13-20260917 (gold-guideline-v0.2) on 2026-10-10.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

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