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Reducing one's consumption of foods containing animal products, or avoiding such foods altogether, has become part of everyday life for many people in the Western world. People's motivations for such "animal product limiting" are well-established, but the ways in which individuals enact and experience dietary change in the initial phase are not well understood. Nor is it clear whether, and how, these people present their dietary changes to others. Through the analysis of interviews with 28 people residing in Denmark who had recently (<9 months) embarked on flexitarian, pescetarian, vegetarian or vegan diets, this paper explores how people, in the initial phase of trying to consume fewer, or no, foods with animal products, (i) engage in the practicalities of daily food activities and (ii) communicate their experiences with, and opinions about, the dietary changes they are making in interpersonal interactions. The findings reveal two very different ways of organising the daily food activities: Foodism and Convenience. They also disclose three different ways of communicating in interpersonal interactions: Ethical advocacy, Plant food demonstration and Anonymisation of diet. The paper offers insights into the variation in practices underlying animal product limiting. It suggests that the plant food sector should cater for people relying on convenient food practices as well as those engaged in more advanced ("foodie") practices. Further, in discussing interpersonal communication in the light of community-based social marketing, we argue that the findings highlight how animal product limiters, in everyday social life, may be able to encourage more people to embark on animal product limiting.
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Dieta , Participação Social , Animais , Dieta Vegana , Carne , Comportamento Alimentar , Dieta VegetarianaRESUMO
Concerns over compromised companion rabbit (Oryctolagus cuniculus domesticus) welfare are widespread. The welfare problems have been linked to the perception of rabbits as low investment 'children's pets.' To test this hypothesis and investigate the current conditions for rabbits, data were gathered from two surveys in 2021: a nationally representative survey of Danish companion animal owners (Survey I) and a detailed social media-based survey of Danish rabbit owners (Survey II). Using logistic regression, three owner-related variables (whether a child/adult was responsible for care of the rabbit, owner-opinion on rabbits' suitability as 'starter pets' and willingness-to-pay [WTP] for veterinary treatment) were employed to investigate the effect of rabbit status on owner-provision of selected husbandry conditions. The 76 (Survey I) and 4,335 (Survey II) responses suggested that most rabbits are acquired for children and are solitarily housed, and that many are kept in cages of an unsuitable size and not checked daily. Owners who perceived rabbits as 'starter pets' and with lower WTP were more likely to house rabbits in restricted space and to not provide continuous gnawing opportunities, ad libitum hay or routine healthcare. A child fulfilling the role of the rabbit's main caretaker was also associated with inadequate housing type and fewer gnawing opportunities. Thus, many rabbits live in unsuitable conditions, and owners who perceive rabbits as low investment 'children's pets' are more likely to not provide recommended resources. Changing owners' perceptions of rabbits and promoting suitable husbandry through official education programmes and minimum requirements is important if there are to be improvements made to rabbit welfare.
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BACKGROUND: Livestock-acquired methicillin-resistant Staphylococcus aureus (LA-MRSA) is a concern in healthcare and a political priority in some countries. OBJECTIVE: This study investigates the net societal costs of 2 alternative strategies for controlling LA-MRSA in Denmark: (1) eradicating LA-MRSA in all pig housing units, and (2) containing LA-MRSA within the units. METHODS: Benefits and costs are considered for affected economic sectors: healthcare, pig production, pig-related industries, and public administration. RESULTS: The cost to society of eradication is estimated at 2.3 to 2.5 billion (present value). Containment will cost 55 to 93 million. For both strategies, the main cost lies in primary pig production-for containment this is mainly due to establishing and operating anterooms and shower rooms, and for eradication it is due to production losses, loss of genetic resources, and costs of cleaning and disinfection. CONCLUSION: Compared with these costs, health economic benefits are moderate for both strategies. Containment is superior to eradication when measured by a benefit-cost ratio.
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Contenção de Riscos Biológicos/veterinária , Erradicação de Doenças/economia , Custos de Cuidados de Saúde , Abrigo para Animais , Controle de Infecções/economia , Staphylococcus aureus Resistente à Meticilina/patogenicidade , Infecções Estafilocócicas/veterinária , Doenças dos Suínos , Suínos/microbiologia , Zoonoses , Animais , Contenção de Riscos Biológicos/economia , Análise Custo-Benefício , Dinamarca , Humanos , Exposição Ocupacional/economia , Exposição Ocupacional/prevenção & controle , Medição de Risco , Fatores de Risco , Infecções Estafilocócicas/economia , Infecções Estafilocócicas/prevenção & controle , Infecções Estafilocócicas/transmissão , Doenças dos Suínos/economia , Doenças dos Suínos/prevenção & controle , Doenças dos Suínos/transmissão , Zoonoses/economia , Zoonoses/microbiologia , Zoonoses/prevenção & controleRESUMO
Ethical treatment of wildlife and consideration of animal welfare have become important themes in conservation, but ethical perspectives on how best to protect wild animals and promote their welfare are diverse. There are advantages to the consequentialist harms ethical framework applied in managing wild herbivores for conservation purposes. To minimize harms while achieving conservation goals, we argue that overabundant wild herbivores should in many cases be managed through consumptive in situ killing. Advantages of this policy are that the negative welfare states imposed on animals last only a short time; remaining animals are not deprived of positive welfare states (e.g., linked to rearing offspring); poor welfare states of animals in overabundant populations are avoided (e.g., starvation); negative welfare impacts on heterospecifics through resource depletion (i.e., competition) are prevented; harvesting meat reduces the number of (agricultural) animals raised to supply meat; and minimal costs maximize funding for other wildlife management and conservation priorities. Alternative ethical approaches to our consequentialist framework include deontology (containing animal rights) and virtue ethics, some of which underpin compassionate conservation. These alternative ethical approaches emphasize the importance of avoiding intentional killing of animals but, if no population reduction occurs, are likely to impose considerable unintentional harms on overabundant wildlife and indirectly harm heterospecifics through ineffective population reduction. If nonlethal control is used, it is likely that overabundant animals would be deprived of positive welfare states and economic costs would be prohibitive. We encourage conservation stakeholders to consider animal-welfare consequentialism as an ethical approach to minimize harms to the animals under their care as well as other animals that policies may affect while at the same time pursuing conservation goals.
Conservación Compasiva versus Conservación Consecuencialista Resumen El trato ético de la fauna y la consideración por el bienestar animal se han convertido en temas importantes para la conservación, pero las perspectivas éticas sobre cuáles son las mejores maneras para proteger a los animales silvestres y promover su bienestar son diversas. Existen ventajas en el marco de trabajo ético de los daños consecuencialistas aplicados en el manejo de herbívoros silvestres por motivos de conservación. Para minimizar los daños a la vez que se alcanzan los objetivos de conservación argumentamos que los herbívoros silvestres sobreabundantes deberían, en muchos casos, ser manejados por medio de muertes in situ consuntivas. Las ventajas de esta política son que los estados negativos de bienestar impuestos sobre los animales duran muy poco tiempo; a los animales que permanecen no se les priva de un estado positivo de bienestar (p. ej.: conectados a la crianza de descendencia); se evitan los estados pobres de bienestar en las poblaciones sobreabundantes (p. ej.: hambruna); se previenen los impactos negativos de bienestar por medio de la disminución sobre los heteroespecíficos (es decir, competencia); la crianza para carne reduce el número de animales (agrícolas) criados para abastecer de carne; y los costos mínimos maximizan el financiamiento para otras prioridades de manejo y conservación de fauna. Las estrategias éticas alternativas a nuestro marco de trabajo consecuencialista incluyen la deontología (que contiene los derechos de los animales) y la ética de virtudes, algunas de las cuales apoyan la conservación compasiva. Estas estrategias éticas alternativas enfatizan la importancia de evitar la muerte intencional de los animales pero, si no ocurre una reducción de la población, es probable que impongan daños considerables accidentales sobre la fauna sobreabundante y dañen indirectamente a los heteroespecíficos por medio de la reducción infructuosa de la población. Si se utiliza un control no letal, es probable que los animales sobreabundantes quedarían privados de estados positivos de bienestar y los costos económicos serían prohibitivos. Alentamos a los accionistas de la conservación a considerar el consecuencialismo del bienestar animal como una estrategia ética para minimizar los daños que sufren los animales bajo su cuidado así como otros animales que podrían ser afectados por las políticas mientras se busca alcanzar objetivos de conservación.
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Conservação dos Recursos Naturais , Teoria Ética , Bem-Estar do Animal , Animais , Animais Selvagens , EmpatiaRESUMO
BACKGROUND: As biobank research has become increasingly widespread within biomedical research, study-specific consent to each study, a model derived from research involving traditional interventions on human subjects, has for the sake of feasibility gradually given way to alternative consent models which do not require consent for every new study. Besides broad consent these models include tiered, dynamic, and meta-consent. However, critics have pointed out that it is normally not known at the time of enrolment in what ways samples deposited in a biobank may be used in future research and that, for a consent to be informed, exactly this kind of knowledge is required. Therefore, there is an ongoing debate about the ethical acceptability of going for less than study-specific consent. MAIN TEXT: In light of this debate we address the question of how to best protect participants against relevant risks and violations of autonomy. We apply the central aims of the informed consent process to the unique circumstances of biobank research where samples and data in many cases are stored for long periods of time and reused in subsequent studies. Thereby we are able to formulate a set of criteria focusing both on the risk of informational harm and the potential violation of participants' values. We compare existing models of consent based on their ability to satisfy the criteria, and we find that the broad consent model offers the best level of protection for participants, although, it suffers from a few important deficiencies with regards to protection against participant value violations and long-term protection of autonomy, if it is applied without qualifications. For this reason, we propose modifications to the current broad consent model, in order to ensure that it provides protection of autonomy and participant values through strong ethical review and continuous communication. CONCLUSION: We conclude that a modified form of broad consent is ethically superior in biobank research, not only because it is most feasible but primarily because it offers the best available protection against the hazards facing research subjects in this form of research.
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Bancos de Espécimes Biológicos/ética , Consentimento Livre e Esclarecido/ética , Bancos de Espécimes Biológicos/normas , Humanos , Consentimento Livre e Esclarecido/normas , Autonomia PessoalRESUMO
BACKGROUND: Pregnant women with a body mass index (BMI) ≥ 30 kg/m2 have been targeted in health-care systems in many western countries as a high-risk group. However, we have limited knowledge of the long-term significance of this prenatal care policy. OBJECTIVE: To investigate accounts women give of their experiences of being targeted as severely overweight during pregnancy when they look back at the intervention 4-5 years later. DESIGN: Interpretive analysis based on 21 semi-structured interviews conducted 4-5 years after the pregnancy with Danish mothers categorized as having a pre-pregnancy BMI ≥ 30. FINDINGS: In the women's retrospective accounts three phases were identified and separated: (i) Being identified as a "severely overweight pregnant woman." The women differed over whether they accepted this categorization, but all believed that an approach based on weight was acceptable. (ii) Encounters with health-care professionals. The women differed here: some reported no negative experiences; others reported experiences of prejudice and silence. (iii) Reflections on long-term outcomes. Most women reported that the interventions during their pregnancies did not lead to any lasting lifestyle change. The women disagreed over whether, in principle, pregnancy was a suitable time to be targeted. DISCUSSION AND CONCLUSION: Our study illustrates the importance of critically considering whether pregnancy is a suitable window of opportunity for obesity prevention, and shows that women's experiences should be examined in relation to each phase of intervention. More interdisciplinary studies are needed to map potential benefits and other consequences over the short- and long-term.
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Atitude do Pessoal de Saúde , Índice de Massa Corporal , Obesidade , Gestantes/psicologia , Relações Profissional-Paciente , Adulto , Dinamarca , Feminino , Humanos , Entrevistas como Assunto , Gravidez , Preconceito , Cuidado Pré-Natal/métodos , Pesquisa Qualitativa , Estudos RetrospectivosRESUMO
Recent highly publicized privacy breaches in healthcare and genomics research have led many to question whether current standards of data protection are adequate. Improvements in de-identification techniques, combined with pervasive data sharing, have increased the likelihood that external parties can track individuals across multiple databases. This article focuses on the communication of identifiability risks in the process of obtaining consent for donation and research. Most ethical discussions of identifiability risks have focused on the severity of the risk and how it might be mitigated, and what precisely is at stake in pervasive data sharing. However, there has been little discussion of whether and how to communicate the risk to potential donors. We review the ethical arguments behind favoring different types of risk communication in the consent process, and outline how identifiability concerns can be incorporated into either a detailed or a simplified method of communicating risks during the consent process.
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Bancos de Espécimes Biológicos/ética , Pesquisa Biomédica/ética , Comunicação , Confidencialidade/ética , Disseminação de Informação/ética , Doadores de Tecidos/ética , Humanos , Consentimento Livre e Esclarecido/ética , Privacidade , Estados UnidosRESUMO
BACKGROUND: In assigning responsibility for obesity prevention a distinction may be drawn between who is responsible for the rise in obesity prevalence ('backward-looking responsibility'), and who is responsible for reducing it ('forward-looking responsibility'). METHODS: We study how the two aspects of responsibility figure in the obesity policies of WHO (European Region), the EU and the Department of Health (England). RESULTS: Responsibility for the emergence and reduction of obesity is assigned to both individuals and other actors to different degrees in the policies, combining an individual and a systemic view. The policies assign backward-looking responsibility to individuals, the social environment, the authorities and businesses. When it comes to forward-looking responsibility, individuals are expected to play a central role in reducing and preventing obesity, but other actors are also urged to act. WHO assigns to individuals the lowest degree of backward- and forward-looking responsibility, and the Department of Health (England) assigns them the highest degree of responsibility. DISCUSSION: Differences in the assignment of backward- and above all forward-looking responsibility could be explained to some extent by the different roles of the three authorities making the plans. WHO is a UN agency with health as its goal, the EU is a liberal economic union with optimization of the internal European market as an important task, and England, as an independent sovereign country, has its own economic responsibilities.
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União Europeia , Política de Saúde , Obesidade/prevenção & controle , Organização Mundial da Saúde , Inglaterra/epidemiologia , União Europeia/organização & administração , Humanos , Obesidade/epidemiologia , Responsabilidade Social , Organização Mundial da Saúde/organização & administraçãoRESUMO
Animal use in medical research is widely accepted on the basis that it may help to save human lives and improve their quality of life. Recently, however, objections have been made specifically to the use of animals in scientific investigation of human obesity. This paper discusses two arguments for the view that this form of animal use, unlike some other forms of animal-based medical research, cannot be defended. The first argument leans heavily on the notion that people themselves are responsible for developing obesity and so-called 'lifestyle' diseases; the second involves the claim that animal studies of obesity's causes and therapies distract attention from preventive efforts. Drawing on both empirical data and moral reasoning, we argue that the relevant attributions of responsibility and claims about distraction are not plausible, and that, therefore, there is no reason to single out the use of animals in obesity research as especially problematic.
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Experimentação Animal/ética , Modelos Animais de Doenças , Estilo de Vida , Obesidade , Autonomia Pessoal , Responsabilidade Social , Animais , Ética em Pesquisa , Humanos , Obesidade/prevenção & controle , Obesidade/terapia , Prevenção Primária , Reprodutibilidade dos TestesRESUMO
Legal protection of the welfare of prenatal animals has not previously been addressed as a discrete subject within the academic literature on animal welfare, ethics and law. This paper aims to rectify this by reviewing the protections (or absence of protections) provided for fetuses by existing legislation in various jurisdictions, and considering the extent to which legal protection of animal fetuses can be justified on animal welfare grounds. Questions related to the need to protect the welfare of neurologically immature postnatal animals are also considered. We argue that there are reasons to protect animal fetuses, both in order to protect fetuses themselves against possible suffering, and in order to protect the animals which fetuses will become against negative welfare impacts that originate prenatally. We review the science on whether fetuses can suffer, and argue that extant regulations do not fully reflect current scientific understanding. Following the precautionary principle, we further argue that regulators should consider the possibility that foetuses and neurologically immature postnatal animals may suffer due to subcortically based 'raw basic affects' (i.e. relatively undifferentiated experiences of discomfort suggested to be generated by neural processing at levels below the cerebral cortex). Furthermore we show that there are reasons for affording fetuses protection in order to safeguard the long-term welfare of future animals. However, it may be possible to provide such protection via rules or laws relating to the use of certain techniques and the management of pregnant animals, rather than via direct legal protection of fetuses themselves. In order to provide such protection effectively we need to know more about the relationship between maternal nutrition, stress, exercise, management and fetal health, and about the impact of the timing of a fetal insult on long-term postnatal welfare.
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The conflict between animal costs and human benefits has dominated public as well as academic debates about animal research. However, surveys of public perceptions of animal research rarely focus on this part of attitude formation. This paper traces the prevalence of different attitudes to animal research in the public when people are asked to take benefit and cost considerations into account concurrently. Results from the examination of two representative samples of the Danish public identify three reproducible attitude stances. Approximately 30-35% of people questioned approved of animal research quite strongly, and 15-20% opposed animal research. The remaining 50% were reserved in their views. Further studies will ideally use the measure developed here to make possible relatively fine-grained comparisons and understandings of differences between populations and changes in attitudes over time.
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Experimentação Animal , Atitude Frente a Saúde , Pesquisa Biomédica/ética , Opinião Pública , Idoso , Animais , Análise Custo-Benefício , Dinamarca , Humanos , Masculino , Pessoa de Meia-Idade , Adulto JovemRESUMO
Although it is widely agreed that veterinary students need to be introduced to ethics, there is limited empirical research investigating the reasons why veterinary ethics is being taught. This study presents the first extensive investigation into the reasons for teaching veterinary ethics and reports data collected in semi-structured interviews with educators involved in teaching undergraduate veterinary ethics at three European schools: the University of Copenhagen, the University of Nottingham, and the Technical University of Lisbon (curricular year 2010-2011). The content of the interview transcripts were analyzed using Toulmin's argumentative model. Ten objectives in teaching veterinary ethics were identified, which can be grouped into four overarching themes: ethical awareness, ethical knowledge, ethical skills, and individual and professional qualities. These objectives include recognizing values and ethical viewpoints, identifying norms and regulations, developing skills of communication and decision making, and contributing to a professional identity. Whereas many of the objectives complement each other, there is tension between the view that ethics teaching should promote knowledge of professional rules and the view that ethics teaching should emphasize critical reasoning skills. The wide range of objectives and the possible tensions between them highlight the challenges faced by educators as they attempt to prioritize among these goals of ethics teaching within a crowded veterinary curriculum.
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Currículo , Educação em Veterinária , Ética , Dinamarca , Inglaterra , Portugal , EstudantesRESUMO
BACKGROUND: Telemedicine offers benefits to clients and their animals, but potential disadvantages are also being debated. METHODS: Using a questionnaire, we investigated dog and cat owners' (N = 2117) use of and beliefs about telemedicine and whether beliefs impact past and expected future use. RESULTS: Although the majority of owners are aware that telemedicine can lead to the risk of something being missed, they see great potential in remote consultation in terms of usefulness for follow-up appointments or improving access to a specialist. However, only 12% of dog owners and 6% of cat owners have used telemedicine, and around 25% of owners who have never used it would be willing to use it in the future. Owners with a larger number of recent veterinary visits were more likely to have used telemedicine. LIMITATIONS: Although a definition of 'telemedicine' was provided, respondents may have had different perceptions of what this meant. CONCLUSION: Owners of dogs and cats recognise the potential benefits of telemedicine, but there is a mismatch with the actual uptake. This not only raises questions about the current availability of telemedicine but also should increase veterinary professionals' understanding of its potential benefits in veterinary practice.
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Doenças do Gato , Doenças do Cão , Consulta Remota , Telemedicina , Humanos , Gatos , Cães , Animais , Doenças do Gato/terapia , ConscientizaçãoRESUMO
Modern veterinary medicine offers a level of care to cats and dogs similar to that available to their owners, including blood transfusions, chemotherapy and MRI scans. The potential benefits to the animals of owners who can afford such care are obvious, but there can also be negative consequences if owners with strong emotional attachments to their pets pursue treatments that significantly reduce the quality of the animal's life while attempting to prolong it. Moreover, caring for a chronically or seriously ill animal can lead to emotional distress and financial and practical challenges for the pet owner. A questionnaire was used to survey cat and dog owners from representative samples of citizens in the UK, Austria and Denmark, to investigate owners' expectations and attitudes towards advanced veterinary care, and the factors that might influence those views. Overall, 58.4% of the pet owners surveyed believed that their pets should have access to the same treatment options as humans, while 51.5% believed that they should have access to the same diagnostic tests as humans. Owners were most likely to be neutral on the question of whether advanced veterinary care has 'gone too far' (45.3%), and to disagree with the statement that advanced care is 'unnecessary' (40.1%). In all three countries, the level of attachment owners had to their pets was most strongly associated with attitudes towards advanced care, with owners scoring higher on Lexington Attachment to Pets Scale (LAPS) being more likely to expect advanced care to be available. Other factors such as owner age, living situation (alone or not), income or possession of pet insurance were less consistently with owner attitudes. Our findings will help inform veterinarians and other health care providers about pet owner expectations and attitudes towards advanced veterinary care, and contribute to the debate on increasing specialisation within the profession.
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Doenças do Cão , Motivação , Humanos , Animais , Cães , Gatos , Áustria , Atitude , Inquéritos e Questionários , Propriedade , Reino Unido , Dinamarca , Animais de Estimação/psicologiaRESUMO
Modern dog and cat owners increasingly use internet resources to obtain information on pet health issues. While access to online information can improve owners' knowledge of patient care and inform conversations with their veterinarian during consultations, there is also a risk that owners will misinterpret online information or gain a false impression of current standards in veterinary medicine. This in turn can cause problems or tensions, for example if the owner delays consulting their veterinarian about necessary treatment, or questions the veterinarian's medical advice. Based on an online questionnaire aimed at dog and cat owners in Austria, Denmark and the United Kingdom (N = 2117) we investigated the use of internet resources to find veterinary medical information, the type of internet resources that were used, and whether owner beliefs explain how often they used the internet to find medical information about their pet. Approximately one in three owners reported that they never used internet resources prior to (31.7%) or after (37.0%) a consultation with their veterinarian. However, when owners do make use of the internet, our results show that they were more likely to use it before than after the consultation. The most common internet resources used by owners were practice websites (35.0%), veterinary association websites (24.0%), or 'other' websites providing veterinary information (55.2%). Owners who believe that the use of internet resources enables them to have a more informed discussion with their veterinarians more often use internet resources prior to a consultation, whereas owners who believed that internet resources help them to make the right decision for their animal more often use internet resources after a consultation. The results suggest that veterinarians should actively ask pet owners if they use internet resources, and what resources they use, in order to facilitate open discussion about information obtained from the internet. Given that more than a third of pet owners use practice websites, the findings also suggest that veterinarians should actively curate their own websites where they can post information that they consider accurate and trustworthy.
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OBJECTIVES: Early malnutrition is a highly prevalent condition in developing countries. Different rodent models of postnatal early malnutrition have been used to approach the subject experimentally, inducing early malnutrition by maternal malnutrition, temporal maternal separation, manipulation of litter size or the surgical nipple ligation to impair lactation. Studies on the behaviour of (previously) malnourished animals using animal models have produced sometimes contradictory results regarding the effects of early postnatal malnutrition and have been criticized for introducing potential confounding factors. The present paper is a first report on the behavioural effects of early malnutrition induced by an alternative approach: mice nursed by α-casein-deficient knockout dams showed a severe growth delay during early development and substantial catch-up growth after weaning when compared with animals nursed by wild-type females. METHODS: Established behavioural tests were used to study the consequences of early postnatal malnutrition on mouse pups at weaning and after partial weight recovery. RESULTS: Despite the impaired growth, the only behavioural difference between malnourished and normally growing animals was found in exploratory behaviour during acute malnutrition at the time of weaning. After partial catch-up in weight early protein malnourished animals showed no indication of lasting effects on general activity, emotionality and exploration, memory, and pain reactivity. DISCUSSION: These results suggest that the role of early nutrition on behavioural development after recovery in animal models may have been overestimated. Further careful examination of this animal model in terms of maternal care and offspring behaviour will be necessary to confirm if mice nursed by α-casein-deficient dams offer an alternative to existing models while eliminating potential confounding factors.
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Animais Recém-Nascidos/crescimento & desenvolvimento , Comportamento Animal , Peso Corporal , Desnutrição Proteico-Calórica/patologia , Animais , Caseínas/administração & dosagem , Modelos Animais de Doenças , Feminino , Lactação , Camundongos , Gravidez , DesmameRESUMO
Depending on the perceived balance of risk and benefit, and on the perceived unnaturalness, some applications of gene technology appear more acceptable to the public than others. This study asks whether a person's knowledge of biology affects their assessment of these factors differently. A random sample of the Danish population (n = 2000) was presented with questionnaires. The respondent's knowledge was measured by a number of textbook questions on biology. The results indicated that knowledge increases the likelihood that a person will have differentiated opinions on medical and agricultural applications, but decreases the likelihood that he or she will differentiate between cisgenic and transgenic cereals. We discuss the implication that knowledge makes people more likely to base their acceptance on judgements of risks and benefits, rather than on judgements of naturalness. The article concludes that the effect of knowledge on acceptance cannot be generalised wholesale from one application, or method, to others.