Appetite (2002) 38, 118±130 doi:10.1006/appe.2001.0474, available online at http://www.idealibrary.com on 1 Research Report Manipulating the symbolic meaning of meat to encourage greater acceptance of fruits and vegetables and less proclivity for red and white meat Michael W. Allen and Surinder Baines University of Newcastle, Australia (Received13 August 2001, finalrevision10 October 2001, accepted in revised form14 November 2001) The present study tested the extent to which dietary preferences are altered by making aspects of the symbolic meaning of meat salient to participants. Individuals in the treatment group were informed of a previous scientific study which found that people who endorse social hierarchy and human dominance over nature consume more red and white meat, and that people who reject hierarchy and dominance eat more fruits and vegetables. The results showed that, compared to a control group, individuals in the treatment group who reject hierarchy and dominance (most participants) perceived red and white meat less favourably, decreased their liking of red and white meat, decreased their object identification with red and white meat, anticipated that they would eat more fruits and vegetables in the subsequent three days, and indeed consumed more fruits and vegetables in a follow-up study three weeks later. Moreover, the salience manipulation's ability to induce a negative response toward red and white meat and greater acceptance of fruits and vegetables was strongest for individuals in the treatment group for whom the salience manipulation made sense, individuals with less confidence in their diet choices, those who had previously considered reducing their meat consumption, and low/normal weight persons. These findings have implications for health promotion and for theories of food choice. # 2002 Elsevier Science Ltd. All rights reserved. Introduction Adequate consumption of fruits and vegetables is associated with reduced risk of cardiovascular disease and some cancers (Block et al., 1992; Gerster, 1991). Likewise, low meat diets are coupled with positive health outcomes, though it is unclear if the harmful effects of meat are due to an invariant aspect of meat or to a factor that can be minimized such as fat content (Beilin et al., 1988; Bergan & Brown, 1980; Burr & An RMC Grant to the first author supported the research. Address correspondence to: Dr Michael W. Allen, Department of Psychology, University of Newcastle, Callaghan, NSW 2308, Australia. E-mail: [email protected] 0195±6663/02/$ - see front matter Butland, 1988; Fraser, 1988). In either case, many individuals consume more than the recommended servings of meat and fewer than the suggested servings of fruits and vegetables (National Diet and Nutrition Survey 1995, 1998; National Dietary Survey of Adults 1983, 1986). In this context, it is vital to understand better the social psychological processes underpinning food choice and the resulting barriers to modification of the diet. A conceptual framework that we believe can lend insight into one of the processes involved in choices of meat and fruit or vegetables is a decision-making model developed in previous research into consumers' product selection strategies (Allen, 2000, 2001; Allen & Ng, 1999). This model suggests that consumers form attitudes to products by evaluating the human values # 2002 Elsevier Science Ltd. All rights reserved. Meat symbolism 119 symbolised by a product against the values that they endorse. An endorsed value evokes a more favourable attitude and greater intention to purchase, whereas a value that the individual rejects results in a less favourable attitude and weaker intention to purchase. We propose that this decision-making process forms attitudes toward foods that result in purchase and consumption of a food and imbue the evaluation of its sensory characteristics (i.e. taste, smell and texture). This is an example of food choice models based on the self-concept and related constructs, as reviewed by Furst et al., 1996. The present study investigates the extent to which salience of the symbolic meaning of meat affects dietary preferences. Recent changes in Western culture have meant that the values symbolised by meat are increasingly rejected (Bell, 1973; Capra, 1995; Dunlap & Van Liere, 1978). Moreover, they are the antithesis of the values symbolised by fruits and vegetables (Adams, 1990; Fiddes, 1989; Twigg, 1983). The consequence of both of these trends is that making salient the values symbolised by meat should encourage greater acceptance of fruits and vegetables, and less proclivity for red and white meat in many individuals. The antithetic values attributed to meat and to fruit and vegetables have been related to broader social structures and forces by sociologists and anthropologists pursuing the Structuralist approach (Cuff & Payne, 1979; Lupton, 1996). This work has focused on an ordering of basic foods, with red and white meat at one end, fruits and vegetables at the other end, and dairy products and fish/seafood in the middle (Adams, 1990; Caplan, 1997; Fiddes, 1989; Fieldhouse, 1995; Heisley, 1990; Lupton, 1996; Twigg, 1983). These researchers suggest that, in Western culture, this ordering conceptualises foods as most vs. least life taking, blood vs. not blood, masculine vs. feminine, strong vs. weak, high vs. low socio-economic status, and involving human command of animals and nature vs. less domination by humanity. Some social researchers have suggested that the origin of these meanings of meat can be traced to the nontechnological phase of cultural development in which the hunt confirmed the superiority of humans over the animal world (Fiddes, 1989). However, hunting was not (and is not) so much a human activity as it was a male activity, and the product of the hunt (i.e. meat) reinforced that gender inequality. For instance, Leaky and Lewin (1978) found that for hunter±gatherer societies in which meat was a valued commodity, meat enabled the higher status group (i.e. males) to solidify their social control, because meat from the hunt was distributed outside the family unit, unlike women's/gatherers' food (see also Kahn, 1980; Kensinger, 1983; Reeves-Sanday, 1981). Moreover, there is evidence from present times that meat is more frequently consumed by males (Kerr & Charles, 1986; Leghorn & Roodkowsky, 1977) and by upper socio-economic groups (Perisse et al., 1969). Through these and other cultural practices, red and white meat have come to symbolise masculinity, high SES, strength, and human domination over nature, whereas fruits and vegetables are associated with femininity, low SES, weakness, and less dominant relations to animals. If consumers do make food choices by evaluating the symbolic meanings of foods in this way, then an approach to changing the diet to promote health may present itself. With recent changes in Western culture, the belief that humanity's relationship with animals and nature should be hierarchical and dominant is being replaced by a more inter-dependent view (Bell, 1973; Capra, 1995; Dunlap & Van Liere, 1978). Bell (1973) implies one reason for this change is that a society's workforce has shifted from agriculture (which underscores the whims of nature) to industry (which emphasises the control of nature via machines) and most recently to services (which are removed from both nature and machines). As human society increasingly shifts from dominating other species, materials that are procured through such means as killing and slaughtering, make people uneasy and defensive (Adams, 1990; Plous, 1993). To cope with this unease, many individuals attempt to dissociate meat from the living animal (Sahlins, 1976; Serpell, 1986; Wood, 1971), a dissociation that results in meat being ``anonymous'' (Barthes, 1957) or having an ``absent referent'' (Adams, 1990). This is facilitated by advertisers rarely showing where meat originates or the slaughtering process, abattoirs moving out of public view, consumers favouring animal parts that least resemble the living animal, and changes in linguistic customs and other socialisation practices. Thus, here is a possible locus for a health promotion strategy. Making salient meat's symbolic meaning of hierarchy and dominance might cause those consumers who reject dominance over nature (the majority) to perceive that their current level of meat preference and consumption is inconsistent with their self-concept and personal values. Two strategies by which these individuals might regain consistency between their values and dietary choices are to decrease their preferences for and consumption of meat and/or to increase their support and consumption of foods that symbolise the rejection of dominance over animals (i.e. fruits and vegetables). A conceivable third strategy is not to change food attitudes and choices but to change values, that is increase the support for dominance and hierarchy, but this is unlikely to work given that values are closely integrated 120 M. W. Allen and S. Baines into the self-concept and are more enduring than attitudes and behaviour (Rokeach, 1973). Allen et al. (2000) found that individuals who identified themselves as heavy eaters of meat were stronger in authoritarianism and preferred hierarchically organised social structures more than those who ate little meat. The present study aimed to see if making this symbolism salient alters preferences for red and white meat, fruit and vegetables and the subsequent consumption of such foods. A subsidiary aim was to explore ways in which making the symbolic meaning of meat salient to participants could influence food choice by changes to the particular phenomena of identification with food, confidence in dietary choices, openness to meat avoidance, attitudes toward animals, and being of normal weight or overweight. Food object identification. Individuals may incorporate an object into their self-concept so that they not only see themselves as users of the object, but also feel that the object reflects something about the kind of person they are (Ball & Tasaki, 1992; Greenwald, 1988; Nemeroff & Rozin, 2000; Wallendorf & Arnould, 1988). In Nemeroff and Rozin's (2000) conceptual framework, the law of contagion leads individuals to perceive that people have character traits comparable to the properties of foods that they prefer: that is, that you are what you eat. We suggest that such self-identification with an object occurs through symbolic meanings because these are culturally shared, abstract, and refer to entities beyond the tangible object. Hence, if making salient the values symbolised by meat makes individuals who reject such values feel that their current level of meat preference and consumption is inconsistent with their values, then they should also perceive that red and white meat no longer represent the kind of person they are. Diet choice confidence (or dietary self-efficacy). This is the extent to which individuals believe that they control their dietary choices (Heatey & Thombs, 1997; Lawrance & McLeroy, 1986). Components of diet choice confidence include the perception of support from friends and relatives in one's diet choice, the belief that one could change the dietary choices of others, and the ability to resist pressure from others to alter one's dietary choices. The lattermost component, in particular, implies that individuals who have more diet choice confidence would be more resistant to the salience manipulation than individuals with less of this confidence. Openness to meat avoidance. For the present study, individuals who formerly made a conscious choice to consume less meat and/or can perceive that they may make such a choice in the future are defined as ``open to meat avoidance''. Individuals who are not open to avoid meat are likely to have incorporated meat consumption into their self-concept to a greater extent than individuals who are open, that is, have greater identification with meat. Hence, we expect that individuals with greater openness to meat avoidance should be more strongly influenced by the salience manipulation than individuals with less openness. Attitudes toward animals. The symbolic meaning of meat refers not only to dominance and hierarchy in human-to-human relationships (i.e. males over females, higher status vs. lower status, etc.) but also to human dominance over animals, that is, slaughtering, hunting, etc. (Adams, 1990; Fiddes, 1989). Hence, given that hierarchy and dominance are increasingly rejected, making salient this meaning of meat should result not only in greater acceptance of fruits and vegetables, and less appetite for red and white meat, but also in more favourable attitudes toward animals in general and food animals in particular (i.e. cows, pigs, chickens). Low/normal weight versus Overweight. Given awareness of claims about the roles of meat and of fruits and vegetables in good health, we also assessed if the salience manipulation's effect on food choice is similar or not in low or normal weight and overweight individuals. Method Design The first independent variable was whether or not individuals were exposed to the Experimental Condition of salience manipulation (treatment vs. control). The second putative independent variable was each individual's level of support for hierarchy and dominance (high vs. low). Other, though less central, variables were individuals' confidence in dietary choices, openness to meat avoidance, and body weight. The main dependent variables, each measured after the salience manipulation, were individuals' preferences for red meat, white meat, fruit and vegetables. In the interests of reliability, these food preferences were measured in four distinct ways: perception of each food as good or bad; liking for each food; identification with each food; and anticipated consumption of each food. Other dependent variables were individuals' food consumption in a follow-up survey after 3 weeks, and individuals' attitudes toward animals in both the main survey (after the salience manipulation) and the 3-week follow-up. The baseline variables were individuals' level and type of basic food consumption before completing the main survey and undergoing the salience manipulation. Meat symbolism 121 To make meat's meaning salient, participants could be shown images of animals at various stages of the meat-production process. This may, however, be perceived by meat eaters as manipulative and heavyhanded, and hence induce defensiveness. A subtler technique would be to create product symbolism by a common technique for measuring a product's image, which is to ask respondents to describe the traits and characteristics of the typical user of the product (e.g. Belk et al., 1982; Birdwell, 1968; Grubb & Hupp, 1968; Munson & Spivey, 1981). The present study used the still less overt technique of informing individuals that previous research (i.e. Allen et al., 2000) had found that people who consume more meat endorse hierarchy and dominance values, whereas people who consume more fruits and vegetables reject hierarchy and dominance values. Allen (in press) recently showed with other consumer goods (cars and sunglasses) that this technique does create the perception among research participants that the product symbolises the stated human values. A manipulation check is available in the present study because individuals in the treatment group who understood the summary of previous research should undergo greater food preference change than individuals who felt that the statement did not make sense. Participants A questionnaire was distributed through the post to a random sample of 800 residents (drawn from the telephone directory) in a city of moderate size in Australia. Two hundred twenty (28%) were returned and these participants were sent a follow-up survey after three weeks (110 participants returned the followup survey). The demographic characteristics of the sample are reported in Table 1. Questionnaire materials Current food consumption. Participants indicated the total number of servings of red meat, white meat, fruit, and vegetables that they had eaten in seven days before responding to the questionnaire. The size of a serving was not defined. The seven-day period was chosen as long enough to reduce floor effects but short enough for respondents to make accurate counts. Openness to meat avoidance. Participants answered two yes±no questions: ``Have you ever made a conscious effort to reduce the amount of meat in your diet?'' and ``Do you think that at some point in the future you may choose to reduce the amount of meat in your diet?'' Individuals who made a conscious choice to reduce the amount of meat in their diet and/or could perceive that they may some day reduce their meat consumption were classified as open to meat avoidance. Diet choice confidence. Individuals rated five items measuring diet choice confidence on seven points from ``Strongly Disagree'' to ``Strongly Agree''. The five items were based on Heatey and Thombs (1997) fruits and vegetables self-confidence scale, but were rephrased to include all foods. The five items were: ``I feel that if I Table 1. Demographic characteristics of sample (%) Sex Male Female Age Group Under 30 30 to 45 45 to 65 Over 65 Occupation Managers, administrators and professionals Clerical, service and sales workers Labourers, tradespersons and related workers Student Homemakers and Unemployed Retired Education Higher degree or postgraduate diploma Bachelor degree Associate diploma or vocational Completed highest level of school Did not complete highest level of school Control Treatment Total 45 55 37 63 41 59 19 28 34 20 20 27 32 21 19 27 33 21 36 15 6 5 16 23 28 12 5 14 14 25 32 13 6 10 15 24 8 29 15 17 30 5 26 21 17 30 6 28 18 17 30 122 M. W. Allen and S. Baines decided to change my diet/eating habits that I would get a lot of support from my friends'', ``I feel that if I decided to change my diet/eating habits that I would get a lot of support from my family'', ``I feel confident that if I decided to change my diet/eating habits that I would be able to stick to it'', ``I feel confident that if I decided to change my diet/eating habits that I would be able to successfully persuade friends or family to also change their diet/eating habits'', ``I feel confident that if I decided to change my diet/eating habits that I would be able to resist pressure from other people trying to pursued me not to change my diet''. Cronbach's alpha for the present study was 071. Endorsement of dominance. Participants completed Sidanius' Social Dominance Orientation (SDO) scale (Pratto et al., 1994). To facilitate the implementation of the study, the 16-item Social Dominance Orientation scale was reduced to eight items that were rated on seven categories from ``Strongly disagree'' to ``Strongly agree'' (Cronbach's alpha for the present study was 085). The items were: ``Some groups of people are simply inferior to other groups''; ``In getting what you want, it is sometimes necessary to use force against other groups''; ``It is okay if some groups have more of a chance in life than others''; ``To get ahead in life, it is sometimes necessary to step on other groups''; ``If certain groups stayed in their place, we would have fewer problems''; ``It's probably a good thing that certain groups are at the top and other groups are at the bottom'', ``Sometimes other groups must be kept in their place''; ``We would have more problems if we treated people more equally''. Salience manipulation comprehension. Participants in the treatment group reported whether or not the statements and table summarising the results of previous research into the association between social dominance and food choice made sense to them. Salience manipulation interpretation. Participants in the treatment group answered the open-ended question, ``What do you think is the main reason or cause of the relationship between Social Dominance and food choices?'' Food perception. Participants rated each basic food (red meat, white meat, fruits and vegetables) on seven points from ``Bad'' to ``Good''. Food liking. Participants indicated their liking of red meat, white meat, fruits and vegetables, respectively on seven points from ``Not at all'' to ``Very much''. Identification with food. Participants indicated the extent to which decreasing their consumption of each food (red meat, white meat, fruits and vegetables) would change an important part of who they are (e.g. ``If I were forced to decrease the amount of red meat that I currently eat per week, I would feel like an important part of who I am had been changed''), on seven categories from ``Strongly disagree'' to ``Strongly agree''. Anticipated food consumption. Participants indicated the total number of servings of red meat, white meat, fruit, and vegetables that they expected to eat in the next three days. The three-day period was chosen to ensure that participants do not simply duplicate their responses to the questions regarding basic food consumption in the previous seven days. Attitudes toward animals. Using seven points from ``Not At All'' to ``Very Much'', participants reported how much they like birds, reptiles, primates, nonprimate mammals, cows, chickens, and pigs, respectively. Two scores were calculated for each individual: (1) his or her liking of general animal categories (i.e. birds, reptiles, primates, non-primate mammals), and (2) his or her liking of food animals (i.e. cow, chickens, pigs). In the present study, the Cronbach's alpha for the former score was 085 and for the latter was 076. Current food consumption. At 3-week follow-up, participants indicated the total number of servings of red meat, white meat, fruit, and vegetables that they had eaten in seven days before responding. Diet change. Also at follow-up, participants indicated whether or not they had changed their eating habits in any way since completing the main survey and what that change comprised (open-ended format). Individuals' open-ended responses were coded as ``No change'', ``Ate more healthily'', and ``Ate less healthily''. In three yes±no questions, participants also reported whether or not they had increased their consumption of fruits and vegetables, decreased red meat, or decreased white meat. Attitudes toward meat production and food animal. Again at 3-week follow-up, participants indicated how much they were in favour of animal slaughtering on four items: ``I don't see the meat I eat as once having been an animal''; ``I think meat production is done humanely''; ``I think animal slaughtering is awful''; ``I think meat production harms the environment''. Items were selected from Worsley and Skrzypiec (1998) and were rated using seven responses from ``Strongly disagree'' to ``Strongly agree''. Cronbach's alpha for present study was 075. Procedure For the main survey, all respondents first completed the items regarding current food consumption, openness to meat avoidance, diet choice confidence, and the SDO scale. Next, each individual in the treatment group scored him or herself on the SDO scale (by taking the sum of the eight items). To ensure that individuals in the treatment group were cognisant of Meat symbolism 123 their level of SDO and to make the subsequent reported association between SDO and food choices relevant (i.e. the salience manipulation), the survey informed participants in the treatment group that a high score on the SDO scale was 10 or more. Next, individuals in the treatment group were shown the following statement, which is a simplification of the results of Allen et al. (2000). Now that you have scored yourself on the Social Dominance items above and determined whether you are HIGH or LOW, you may be interested in the findings of recent research that has investigated the relationship between Social Dominance and dietary choices. The results of the study are depicted in the table below: Total amount of Total amount of red and white fruits and vegetables meat eaten in eaten in one week one week People with HIGH Social Dominance People with LOW Social Dominance 8 3 2 9 As you can see from the above table, people higher in Social Dominance consume greater amounts of meats, and less fruits and vegetables. In contrast, people lower in Social Dominance consume less meats and more fruits and vegetables. Participants in the treatment group indicated whether or not the table made sense and their interpretation of the cause of the relationship between SDO and food choice. Participants in both conditions then rated their perceptions of basic foods (good or bad), likings for these foods, identification with each food, anticipated consumption of each food over subsequent 3 days, and attitudes toward animals. Finally, 3 weeks after completing the main survey, all participants were sent a follow-up survey of their consumption of basic foods, dietary changes and attitudes toward slaughter of animals. Analysis of data To examine whether or not the salience manipulation induced changes in food preferences as a function of individual's endorsement of dominance, two Experimental Condition (treatment vs. control group) Food Type (red and white meat vs. fruits and vegetables) repeated measures (good vs. bad perceptions, liking of the foods, identification with each food, and anticipated consumption) MANOVAs were carried out; the first on low SDO participants' food preferences and the second for high SDO participants. For a manipulation check, a Sense (Did not make sense vs. Did make sense) Food Type repeated measures MANOVA was carried out on the food preferences of the treatment group. In addition, six Experimental Condition Food Type repeated measures MANOVAs were carried out on the food preferences of participants: (1) below the median in diet choice confidence, (2) above the median in diet choice confidence, (3) not open to meat avoidance, (4) open to meat avoidance, (5) with low to normal weight (BMI below 30), and (6) who were overweight. All MANOVAs included as covariates the participants' pre-test consumption of red meat, white meat, fruits and vegetables. To assess if the salience manipulation affected subsequent food consumption, an Experimental Condition (treatment vs. control group) Food Type (red and white meat vs. fruits and vegetables) Pre-Post (pre-test vs. three-week follow-up) mixed ANOVA was calculated. Given that the majority of participants in the main survey were expected to reject SDO, food consumption change from pre to post test as a function of Experimental Condition and high vs. low SDO endorsement was not analysed due to the small cell size for high SDO participants in the follow-up study. Finally, the effect of the salience manipulation on attitudes towards animals was analysed in an Experimental Condition (treatment vs. control group) Animal Type (liking of general animals vs. food animals) mixed ANOVA, and a t-test comparing the treatment and control groups' attitudes toward slaughtering. Results There were 73 participants who scored above the midpoint of the Social Dominance Orientation scale (High Dominance), while 130 scored below the mid-point (Low Dominance respondents). As predicted, Low Dominance participants who were exposed to the meat dominance symbolism favoured meat less and fruits and vegetables slightly more than those who were not exposed, (top half of Table 2), Experimental Condition Food Type interaction F(4,119) 37, p < 001. Effects within each group had to be tested by interaction with Food Type because fruits and vegetables were preferred over meat (56 vs. 39), F(4,119) 287, p < 0001. Post-hoc tests revealed that the treatment group had significantly (p < 001) lower means than the control group for red and white meat good±bad perceptions, red and white meat liking, and red and white meat identification, and that the treatment 124 M. W. Allen and S. Baines group had significantly higher means than the control group for fruit and vegetables anticipated consumption. In addition, exposure to meat dominance symbolism did not significantly affect the food preferences of High Dominance individuals (lower section of Table 2). At 3-week follow-up, individuals in the treatment group had increased their consumption of fruits and vegetables, the control group decreased consumption of fruits and vegetables, and the red and white meat consumption for both treatment and control groups remained constant (Table 3), Experimental Condition Food Type Pre±Post interaction F(1,93) 86, p < 001. In response to the open-ended (coded) and closed questions regarding dietary change (Table 4), Table 2. Food perceptions, liking, object identification and anticipated consumption by Experimental Condition, Food Type, and SDO groups Red and white meat Fruit and vegetables Control N 103 Treatment N 113 Control N 103 Treatment N 113 526 540 429 137 408 458 488 367 145 364 685 629 446 465 556 678 614 449 527 567 570 557 455 156 435 534 543 427 145 412 676 611 458 433 544 659 602 422 418 525 Low SDO participants (n 130) Perception of good bad Food liking Object identification Anticipated consumption (#servings) Averages High SDO participants (n 73) Perception of good bad Food liking Object identification Anticapted consumption (# servings) Averages Basic food perceptions, liking, object identification on a 1±7 scale, with higher numbers being more favourable. All means adjusted for individuals' consumption of red meat, white meat, fruits and vegetables in the seven days prior to completing the main questionnaire. Table 3. Results of 3-week follow-up study. Self-reported food consumption (servings) Red and white meat Fruit and vegetables Control Treatment Control Treatment 266 261 288 287 1181 1020 716 827 Pre-test/main survey Post-test/3 week follow-up survey Table 4. Results of 3-week follow-up study. Self-reported Diet Change Control Increase fruits and vegetables in last few weeks? No Yes Decrease red meat in last few weeks? No Yes Decrease white meat in last few weeks? No Yes Change in diet in last few weeks? Open-ended No change Ate more Healthily Ate less Healthily *p < 005; **p < 001; ***p < 0001. Dfs ranged from 1 to 2. Treatment 2-way Chi-square N Col % N Col % 39 0 100 0 41 17 71 29 138*** 39 0 100 0 51 7 88 12 50* 38 1 97 3 55 3 95 5 04 31 3 84 8 37 16 69 30 75* 3 8 1 2 Meat symbolism 125 significantly more individuals in the treatment group than in the control group reported that they increased their consumption of fruits and vegetables, decreased red meat, and ate more healthily. A higher percentage of individuals in the control group reported that they did not change their diet since the main survey. In the main survey, individuals in the treatment group for whom the salience manipulation made sense decreased their preferences for red and white meat and slightly increased their support for fruits and vegetables (Table 5), Sense Food Type interaction F(4,91) 46, p < 0001. Also noteworthy was that individuals' perceptions of whether or not the salience manipulation made sense was not appreciably correlated with their level of SDO endorsement, r(100) ÿ007, p > 04. The participants' open-ended statements of what they felt was the main cause of the relationship between Social Dominance and food choices provided several categories of explanations and interpretations (summarised in the Appendix). The most common interpretations were that people who endorse dominance support the killing and eating of animals, and that people who endorse dominance favour meat because it is expensive and high status. Other interpretations were that men and those who endorse the masculine role favour dominance and meat and that consuming meat makes one aggressive and strong. As expected, the food preferences of individuals with low diet choice confidence were significantly affected by the salience manipulation. Experimental Condition Food Type interaction F(4,69) 23, p < 005, whereas the food preferences of those with high diet choice confidence were not (Table 6). Also, individuals who were open to meat avoidance decreased meat and increased fruits and vegetables preferences as a result of the meat salience manipulation, Experimental Condition Food Type interaction F(4,103) 28, p < 005, but individuals not open to meat avoidance did not Table 5. Food perceptions, liking, object identification and anticipated consumption by Sense and Food Type. Treatment Group Only Red and white meat Perception of good bad Food liking Object identification Anticipated consumption (# servings) Averages Fruit and vegetables Made sense N 44 Did not make sense N 56 Made sense N 44 Did not make sense N 56 457 504 381 169 378 550 556 426 156 422 674 609 413 499 549 671 622 418 430 535 Basic food perceptions, liking, object identification on a 1±7 scale, with higher numbers being more favourable. All means adjusted for individuals' consumption of red meat, white meat, fruits and vegetables in the seven days prior to completing the main questionnaire. Table 6. Food perceptions, liking, object identification and anticipated consumption by Experimental Condition, Food Type, and diet choice confidence groups Red and white meat Low diet choice confidence (n 75) Perception of good bad Food liking Object identification Anticipated comsumption (# servings) Averages High diet choice confidence (n 124) Perception of good bad Food liking Object identification Anticipated consumption (# servings) Averages Fruit and vegetables Control N 103 Treatment N 113 Control N 103 Treatment N 113 558 572 475 161 441 465 522 398 150 384 682 599 456 430 542 663 587 407 462 530 511 507 389 161 385 476 492 372 150 373 688 651 444 430 564 677 627 435 462 565 Basic food perceptions, liking, object identification on a 1±7 scale, with higher numbers being more favourable. All means adjusted for individuals' consumption of red meat, white meat, fruits and vegetables in the seven days prior to completing the main questionnaire. 126 M. W. Allen and S. Baines alter their food preferences (Table 7). Notable too was the fact that individuals not open to meat avoidance had stronger meat object identification than individuals open to meat avoidance (mean of 47 vs. 38), t(213) 55, p < 0001. Low/normal weight individuals decreased meat and maintained fruit and vegetable preferences (Table 8), Experiment Condition Food Type interaction F(4,113) 23, p < 005. The food Table 7. Food perceptions, liking, object identification and anticipated consumption by Experimental Condition, Food Type, and openness to meat avoidance groups Red and white meat Not open to meat avoidance (n 93) Perception of good bad Food liking Object identification Anticipated consumption (# servings) Averages Open to meat avoidance (n 109) Perception of good bad Food liking Object identification Anticipated consumption (# servings) Averages Fruit and vegetables Control N 103 Treatment N 113 Control N 103 Treatment N 113 584 599 492 182 464 604 593 457 174 457 672 619 413 407 528 664 611 395 414 521 507 511 394 124 384 443 480 357 128 352 685 622 442 403 538 681 615 448 435 545 Basic food perceptions, liking, object identification on a 1±7 scale, with higher numbers being more favourable. All means adjusted for individuals' consumption of red meat, white meat, fruits and vegetables in the seven days prior to completing the main questionnaire. Table 8. Food perceptions, liking, object identification and anticipated consumption by Experimental Condition, Food Type, and BMI groups Red and white meat Low/Normal BMI (n 125) Perception of good bad Food liking Object identification Anticipated consumption (# servings) Averages High BMI (n 70) Perception of good bad Food liking Object identification Anticipated consumption (# servings) Averages Fruits and vegetables Control N 103 Treatment N 113 Control N 103 Treatment N 113 520 529 417 151 404 460 488 380 135 366 678 615 434 407 533 666 610 433 420 532 568 586 462 144 440 573 579 423 178 438 692 652 436 484 566 680 627 428 471 552 Basic food perceptions, liking, object identification on a 1±7 scale, with higher numbers being more favourable. All means adjusted for individuals' consumption of red meat, white meat, fruits and vegetables in the seven days prior to completing the main questionnaire. Table 9. Attitudes toward animals by Experimental Condition Main survey Attitudes toward animals Food animals (cows, pigs, chickens) General animal categories (birds, reptiles, insects, primates, non-primate mammals) Averages 3 week follow-up survey Pro-slaughtering attitude Attitudes on a 1±7 scale; higher numbers are more favourable. Control Treatment N 68 N 73 410 413 411 N 46 453 472 432 451 N 52 414 Averages 441 422 Meat symbolism 127 preferences of overweight individuals were not significantly affected. Finally, the treatment group rated all animals more favourably than control group (Table 9), F(1,139) 56, p < 001, and individuals in the treatment group rated food animals most favourably, Animal Type Experimental Condition interaction F(1,139) 47, p < 005. Moreover, in the 3-week follow-up survey, individuals in the treatment group were significantly more opposed to animals being used as food than the control group (lower portion of Table 9), t(89) 17, p < 005. Discussion The results indicate that the salience manipulation caused individuals in the treatment group who rejected social dominance to perceive red and white meat less favourably, to like red and white meat less, to decrease their identification with red and white meat, to anticipate that they would eat more fruits and vegetables in the subsequent 3 days, and indeed to report consuming more fruits and vegetables in a follow-up study 3 weeks later. It appears that participants in the present study dealt with the inconsistency of their prior food choices with their rejection of dominance by decreasing their preferences for red and white meat and increasing their anticipated and reported consumption of fruits and vegetables. However, individuals in the treatment group who rejected social dominance did not decrease their consumption of red and white meat, nor did their preferences for fruits and vegetables increase. A possible explanation for these exceptions from the predicted effects is that it is less demanding to increase consumption of fruits and vegetables than to decrease consumption of red and white meat, or perhaps some level of ``idealism''. Regarding the latter, individuals in the treatment group were significantly more likely to report in the 3-week follow-up study that they recently decreased their red meat consumption (in the closed question). However, a comparison of their red and white meat consumption from pre- to post-test showed no significant change. Although several interpretations for this discrepancy are possible (including that only a small number of individuals in the follow-up study reported decreasing red meat), one account is that they genuinely believe that they decreased their meat consumption. This idealism or optimism would enable them to perceive that their food choices are consistent with their human values (i.e. that they reject dominance and so eat less meat). Consequently, idealism may be a fourth strategy to respond to the feelings of inconsistency brought about by making the symbolic meaning of meat salient (the first being to decrease meat attitudes and behaviour, the second to increase fruits and vegetables attitudes and behaviour, and the third not to change dietary preferences and instead alter human values). Changes in food attitudes and behaviour were greater when participants reported that the salience manipulation made sense. This indicates that it was the salience manipulation that induced the attitude and behaviour change. Furthermore, the individuals who changed most were those who rejected dominance, suggesting that it was this meaning of meat they were reacting against. These are different pieces of evidence because endorsement of dominance was only weakly correlated to perception of sense with the salience manipulation. Thus, the results of the present study provide tentative support for the proposition that one means by which consumers make dietary choices is by comparing the human values symbolised by a food against the values that they endorse. Based on Allen's (2000, 2001; Allen & Ng, 1999) consumer decision-making model, it was suggested that the comparison between one's values and a food's symbolism affects one's attitude toward the food, makes food purchase and consumption more likely, and potentially imbues the evaluation of the food's taste, smell and texture. Though the present study indicated that the comparison between human values and food symbolism results in more favourable attitudes and greater consumption, the study did not address if the comparison influences the evaluation of a food's sensory characteristics. The issue is an important one for future research because current theories of food choice suggest that taste evaluation is mainly a biological process (Sherwood, 1989) or that food attitudes result from previous positive or negative experiences of a food (Garcia et al., 1972). Less well understood is how the evaluation of a food's taste is influenced by the interaction between the socially constructed, cultural meanings of the food and important aspects of individuals' self-concepts (such as the values they hold). Regarding attitudes toward animals, it was suggested that making salient the dominance meaning of meat should not only result in meat rejection and greater acceptance of fruits and vegetables, but also in more favourable attitudes toward animals in general and food animals in particular (i.e. cows, pigs, chickens). Following the salience manipulation, individuals in the treatment group liked food animals more than the control group and this sympathy with food animals persisted 3 weeks later (as evidenced by their greater opposition to slaughtering in the follow-up study). This implies that some participants did make a cognitive link between the hierarchy and dominance symbolic meaning of meat and food animals. In support this 128 M. W. Allen and S. Baines supposition, a common response in the open-ended question of why social dominance is associated with diet choice was that people who endorse dominance support the killing and eating of animals (see the Appendix). Thus, for these individuals, meat's ``anonymity'' (Barthes, 1957) and ``absent reference'' (Adams, 1990) seems to have ameliorated by the salience manipulation. Moreover, other interpretations that individuals in the treatment group gave for the association between social dominance and food choice were: meat is high status and expensive, meat is masculine and for males, and meateating causes aggressiveness. Thus, even participants who did not state explicitly that meat represents the domination of humans over animals did recognise that meat is implicated in gender and social class divisions. Taken together, these findings are consistent with the claims by some sociologists and anthropologists that meat symbolises hierarchy and dominance in both human-to-animal and human-to-human relations (Adams, 1990; Fiddes, 1991). Finally, the results of the present study could have implications for health promotion. As mentioned, epidemiological studies reveal that low meat diets and sufficient consumption of fruits and vegetables are associated with positive health outcomes (Beilin et al., 1988; Bergan & Brown, 1980; Block et al., 1992; Burr & Butland, 1988; Fraser, 1988; Gerster, 1991). Nevertheless, many individuals consume more than the suggested servings of red and white meat and fewer than the recommended servings of fruits and vegetables (National Diet and Nutrition Survey, 1995, 1998; National Dietary Survey of Adults, 1983, 1986). As such, health campaigns have been launched endeavouring to increase consumption of fruits and vegetables and/or decrease consumption of meat (Dixon et al., 1998; Foerster et al., 1995; Havas et al., 1994; Kristal et al., 2000). Many of these campaigns rely on nutritional arguments to persuade individuals to alter their diet choices. However, Axelson et al. (1985) and Shepherd and Towler (1992) found that nutritional knowledge was weakly correlated with food selection, suggesting that food choice is not driven by nutritional considerations (but see Wardle et al., 2000). Thus, health campaigns that rely exclusively on nutritional and other health-related arguments might have limited success. On the basis of the present study, we can suggest that future health campaigns might persuade individuals to alter their diets by enabling them to express their values via the foods' symbolic meanings. For instance, health campaigns might persuade individuals to increase their consumption of fruits and vegetables if the promotional materials: (1) make salient the values that are currently symbolised by fruits and vegetables because these values (non-hierarchy and non-dominance) are increasingly supported in Western culture; (2) change the symbolic meaning of fruits and vegetables to encapsulate other values that are already supported by the public; and/or (3) make salient the values symbolised by red and white meat, which, as shown in the present study, can subsequently increase consumption of fruits and vegetables. Indeed, in focus group studies, participants have suggested that greater consumption of fruits and vegetables may be achieved with better marketing and positioning campaigns (Uetrecht et al., 1999). Notwithstanding this optimism, such campaigns may have a modest impact on diet choice, given that the effects in the present study were significant but relatively small. 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Appendix: Treatment group's comments regarding the possible cause or explanation of the association between social dominance and food choices People who endorse hierarchy and dominance favour foods that are expensive and high status 29% Typical comments were: ``It might be a matter of money ± higher social standing ± more finances available ± reverse this for social standing'' ``It makes upper social feel and look better than lower social they feel superior'' ``Meat symbolic of wealth'' ``Only people with money can afford to be snobs (have high social dominance), they're the ones that can eat good food'' People who endorse hierarchy and dominance support the killing and eating of animals 22% Typical comments were: ``Red meat brings out the animal in us. Mankind has survived by killing and eating red meat'' ``High dominance people are able to overlook the unsavoury side of using animals for food!'' ``Goes back to the days of hunting (the hunter is dominant in the society)'' ``Perhaps the reason may be that people who consciously make a choice to reduce red/white meat and therefore increase fruit and vegetable in their diet are the type of people who believe that animals are not on this earth for the sole purpose of feeding humans'' ``Those who don't agree with social dominance would believe in equal opportunities for all including animals'' Males tend to favour dominance and meat 5% Typical comments were: ``Culturally, Australian males are taught to be dominant and consume lots of meat'' ``The `hunter and gatherer' culture of our forbearers, was one where the dominant male hunted the red meat while the subservient female gathered the cereals and vegetables and fruit. Although the social dominance is not as apparent today as yester-year'' Consuming meat makes one aggressive and strong 4% Typical comments were: ``Red meat makes people aggressive'' ``Red meat changes a type of chemical balance and results in a high social dominance'' ``People with high social dominance may believe that eating meat will make them stronger and more control'' ``Meat gives strength: strength dominance'' Miscellaneous comments 40% Typical comments were: ``For myself there is no correlation to these findings. For the general population these results indicate that people of low social dominance are vegetarian'' ``Social dominance has nothing to do with it. Freedom of choice and nutrition education does'' ``I think it says more about intellectual capacity, tolerance, indoctrination, bigotry and education! I would need further information before I could accept completely the findings'' ``Too busy enjoying the social side of life which may involve eating out and eating these food groups'' Participants in the treatment group answered the open-ended question ``What do you think is the main reason or cause of the relationship between Social Dominance and food choices ?''.
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