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BACKGROUND: Eating disorders (EDs) compromise individuals' nutritional status, affecting, among other organs and systems, bone health. OBJECTIVES: This study aimed to assess and compare bone mineral density (BMD) from DXA scan and deuterium (D2O) dilution of adult females with anorexia nervosa (AN) and bulimia nervosa (BN). METHODS: This was a cross-sectional study with 53 female participants (18-49 y) with a diagnosis of AN (n = 25) or BN (n = 28). DXA scan was performed to assess BMD, FM, and FFM, and D2O dilution was used to assess total body water (TBW), FM, and FFM. Interviews/questionnaires were used to assess symptoms, illness trajectory, and physical activity. t-test, chi-square test, Pearson's linear correlation, linear regressions, and Bland-Altman analyses were performed, with a significance level of 5%. RESULTS: TBW below the recommended level for adult females (≥ 45%) was more frequent in BN (60%) compared with AN (21%; P = 0.013). FM index (FMI) (soft tissue only) (t-test P = 0.06), and FFM index (FFMI) (t-test P = 0.08) agreed between DXA scan and D2O dilution. Only FFMI did not show systematic bias of proportion (ß: -0.2, P = 0.177). The diagnosis of BN, binge-eating episodes, and physical activity in AN were associated with the differences in the methods' results. FMI was positively associated with BMD in AN, and both FMI and FFMI were positively associated with BMD in BN. CONCLUSIONS: In adult females with EDs, DXA scan and D2O dilution achieved agreement for FMI and FFMI. Changes in FM and FFM are important in understanding the mechanisms behind bone loss in EDs. Protocols for body composition assessment in EDs can help to minimize the effect of the ED diagnosis, ED behaviors (that is, excessive exercise and purging behaviors), and weight on the accuracy of measurements.
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Anorexia Nervosa , Bulimia Nervosa , Humanos , Adulto , Feminino , Absorciometria de Fóton/métodos , Deutério , Estudos Transversais , Composição CorporalRESUMO
Prior studies on perceived healthiness of foods have often compared nutrient and hedonic claims, neglecting comparisons to a control condition. The effect of food claims focusing on the food processing level has received considerably less research attention, although food processing has been included in dietary guidelines in Brazil. Thus, the present study aimed to explore the effect of a control and processing claim, additionally to the effects of a nutrient. and hedonic claim, on perceptions related to a food item typically considered "less healthy" (chocolate cake). We further compared these effects between Brazil and Germany, a country where food processing is currently not included in dietary guidelines. A total of 634 lay adults were recruited in a cross-sectional online study and randomised to see the photo of a piece of cake with one of the four different claim conditions and to report their health-related perceptions of the cake. The main analyses included two-way ANCOVAs (4 claims x 2 countries) for each dependent variable controlled for gender, age and level of hunger; followed by post hoc tests. Overall, results revealed that in both countries, the claims highlighting nutrients or processing aspects rendered the perceptions of the cake healthier compared to the control claim. These effects were more pronounced among Brazilian than among German participants. Food-related perceptions mostly did not differ between the hedonic and control claim and did not differ at all between the nutrient and processing claims. In conclusion, it is noteworthy that, even for an inherently considered "less healthy food item" (chocolate cake) nutrient and processing claims increase healthiness perceptions. While our findings may imply that in both countries lay people are highly susceptible to nutrient claims, food processing aspects seem to be similarly relevant.
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OBJECTIVES: This study aimed to evaluate the impact of a nutritional behavioral intervention on intuitive eating (IE) scores of overweight non-dialysis-dependent women with chronic kidney disease and to investigate the relationship of IE scores with demographic, nutritional, and quality of life parameters in this group. DESIGN AND METHODS: This is a prospective noncontrolled clinical trial of a behavioral multisession group intervention for dietary management. Each group comprised five to eight participants in 14 weekly or biweekly sessions lasting about 90 minutes each. The IE principles were discussed during the meetings. The IE scale 2, translated and adapted to the study population, with a four-factor model was applied to assess IE attitudes. The 36-Item Short-Form Health Survey questionnaire was applied to assess health-related quality of life. RESULTS: Of the 33 patients who began participation in the study, 23 patients (median [interquartile range]: age = 62.0 years [58.0-68.0]; 52.2% with diabetes; body mass index = 32.6 kg/m2 [30.2-39.3]; estimated glomerular filtration rate = 28.0 mL/min/1.73 m2 [22.0-31.0]) completed the intervention. Except for the IE subscale Body-Food Choice Congruence, the IE total score and all its subscales (Unconditional Permission to Eat, Eating for Physical Rather than Emotional Reasons, Reliance on Hunger and Satiety Cues, and Body-Food Choice Congruence) improved after the intervention. In a cross-sectional analysis, more intuitive eaters were older and had better scores for health-related quality of life. CONCLUSIONS: The nutritional behavioral intervention embracing IE principles was effective to improve IE attitudes for this group of chronic kidney disease patients. These results are promising and may contribute to a paradigm change in the strategies to enhance motivation and adherence to dietary recommendations in this population.
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Ingestão de Alimentos , Comportamento Alimentar , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Transversais , Ingestão de Alimentos/psicologia , Sobrepeso/complicações , Sobrepeso/terapia , Estudos Prospectivos , Qualidade de Vida , Inquéritos e QuestionáriosRESUMO
PURPOSE: Investigate the efficacy of a dissonance-based (DB) intervention (i.e., the Body Project), during which some examples of intuitive eating were provided by peer leaders, in improving intuitive eating and targeting risk and protective factors for eating disorders (ED) among Brazilian women with body dissatisfaction. METHODS: Participants were randomized to a four-session DB intervention (n = 38) or assessment-only control (AOC) (n = 36), and completed validated measures assessing intuitive eating, body appreciation, self-esteem, body-ideal internalization, body dissatisfaction, negative affect, and disordered eating pre-intervention, post-intervention, and at 4- and 24-week follow-ups. RESULTS: The DB condition demonstrated significantly greater increases in intuitive eating, body appreciation and self-esteem scores compared to AOC from pre-intervention to post-intervention (between-condition Cohen's d = 0.73-0.98), 4-week (between-condition Cohen's d = 1.25-1.87) and 24-week follow-up (between-condition Cohen's d = 0.82-1.38). Also, the DB condition showed significantly greater decreases in body-ideal internalization, body dissatisfaction and disordered eating scores from pre-intervention to post-intervention (between-condition Cohen's d = 0.76-1.04), 4-week (between-condition Cohen's d = 1.27-1.71) and 24-week follow-up (between-condition Cohen's d = 1.04-1.19). Regarding negative affect, DB condition showed significantly greater reduction only at 24-week follow-up (between-condition Cohen's d = 0.60). CONCLUSION: Results reinforce the efficacy of DB interventions in reducing ED risk factors for young women and support the preliminary efficacy of these programs in improving intuitive eating, body appreciation, and self-esteem. LEVEL OF EVIDENCE: Level I, randomized controlled trial. ReBEC (Brazilian Registry of Clinical Trials; available at http://www.ensaiosclinicos.gov.br/ ) number of registration: RBR-2f57cs. Date of registration: June 1, 2020.
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Insatisfação Corporal , Transtornos da Alimentação e da Ingestão de Alimentos , Imagem Corporal , Brasil , Dissonância Cognitiva , Transtornos da Alimentação e da Ingestão de Alimentos/prevenção & controle , Feminino , HumanosRESUMO
Chronic kidney disease (CKD) often requires several dietary adjustments to control the disease-related disturbances. This is challenging for both patients and healthcare providers, and particularly for dietitians, who deal closely with the poor adherence to dietary recommendations. Factors associated with poor adherence within the CKD scenario and the need for a shift in the paradigm have already been indicated in several studies; however, rarely are any different and/or potential strategies actually formulated in order to change this paradigm. In this review, we aimed to explore the concepts and factors surrounding adherence to dietary recommendations in CKD and further describe certain potential strategies for a nutritional counseling approach. Such strategies, while poorly explored within CKD, have shown positive results in other chronic disease scenarios. It is timely, therefore, for healthcare providers to acquire these new counseling skills; nevertheless, this would require a rethinking of the traditional attitudes and approaches in order to build a partnership, based on a nonjudgmental and compassionate style in order to guide behavior change. The reflections presented in this review may contribute towards enhancing motivation and the adherence to dietary recommendations in CKD patients.
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Motivação , Insuficiência Renal Crônica , Dieta , HumanosRESUMO
Understanding the motives influencing food intake is indispensable for effective dietary recommendations aimed at promoting healthy eating in an integrative way. The objective of this study was to evaluate food choice motives across two socioeconomically different cities in Brazil. A cross-sectional study with a convenience sample (n = 473) of adults living in both places was evaluated. Food choice motives were assessed by The Eating Motivation Survey (TEMS) with 15 dimensions, and economic classifications were made according to the Brazilian Economic Classification Criteria (CCEB). Data analysis used both a general linear model (GLM) and a Structural Equation Model (SEM) adjusted for age, ethnicity, income and educational degree. Participants were mainly women (74.6%) with a mean age of 36.6 years. Cities were not invariant (Δχ2 = 314.165, p < 0.001) and two distinct prediction models for food choice motives emerged. Fit indices indicate acceptable model fit for both low (CFI = 0.911; TLI = 0.898; RMSEA = 0.041) and high socioeconomic status groups (CFI = 0.808; TLI = 0.717; RMSEA = 0.081). Although cities differ in the prediction models for food choice motives, we demonstrated that there are two main networks of predictors: one related to social context predictors of food choice motives and another related to hedonic-oriented ones. Particularly, hedonic-oriented motives (i.e., pleasure) were the most relevant predictors to the group of high socioeconomic status followed by social context predictors (traditional eating and sociability). On the other hand, the group of low socioeconomic status had most of its predictors related to social context (i.e., visual appeal, traditional eating, sociability, social norms and social image) and also price, but this last one was the least important among the most important predictors.
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Preferências Alimentares , Motivação , Adulto , Brasil , Estudos Transversais , Feminino , Humanos , Classe Social , Inquéritos e QuestionáriosRESUMO
Across the world, there has been a movement from traditional to modern eating, including a movement of traditional eating patterns from their origin culture to new cultures, and the emergence of new foods and eating behaviors. This trend toward modern eating is of particular significance because traditional eating has been related to positive health outcomes and sustainability. Yet, there is no consensus on what constitutes traditional and modern eating. The present study provides a comprehensive compilation of the various facets that seem to make up traditional and modern eating. Specifically, 106 facets were mentioned in the previous literature and expert discussions, combining international and interdisciplinary perspectives. The present study provides a framework (the TEP10 framework) systematizing these 106 facets into two major dimensions, what and how people eat, and 12 subdimensions. Hence, focusing only on single facets of traditional and modern eating is an oversimplification of this complex phenomenon. Instead, the multidimensionality and interplay between different facets should be considered to gain a comprehensive understanding of the trends, consequences, and underlying factors of traditional and modern eating.
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Dieta/tendências , Ingestão de Alimentos/psicologia , Comportamento Alimentar/psicologia , Mudança Social , Dieta/métodos , Dieta/psicologia , HumanosRESUMO
Taste preferences and health concerns play important roles in determining eating attitudes, thus influencing food choices. Disordered eating attitudes are common among women, and can lead to the development and maintenance of eating disorders (ED). Attitudes toward health and taste of food among ED patients and its comparison with non-clinical women are not well known, and this knowledge could improve eating interventions. In this study, we compared taste preferences and health concerns in 27 women with diagnosis of bulimia nervosa (BN) and 216 women of a non-clinical sample. All participants completed the Health and Taste Attitude Scale (HTAS). Using analysis of covariance we compared the HTAS scores of the BN patients with those of the college students. Risk behaviors for ED (assessed by the Eating Attitudes Test) were identified in 54 (25%) of the non-clinical sample, all of whom were therefore excluded in comparison of BN patients. Non-clinical sample, compared to patients, scored higher on the HTAS Taste domain (p < 0.001) and its pleasure subscale (p < 0.001), whereas patients scored higher on the HTAS Health domain (p < 0.05) and its light product interest subscale (p < 0.05). Based on our data, eating attitudes of women of non-clinical sample are related to taste and pleasure, whereas women with BN are concerned with adopting a diet regarded as healthy, thus increasing their interest in "light" products. Therefore, the taste and health concerns must be considered in nutrition interventions for women in general, and prevention and treatment of ED as determinants of food choice.
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Atitude Frente a Saúde , Bulimia Nervosa/psicologia , Dieta/psicologia , Preferências Alimentares/psicologia , Percepção Gustatória , Adulto , Análise de Variância , Feminino , Humanos , Estudantes/psicologia , Adulto JovemRESUMO
The Tripartite Influence Model posits that parents, peers and media influences mediated by internalization and appearance social comparison are predictors of body dissatisfaction, a key risk factor for eating disorders. However, the Tripartite Influence Model has not been tested in Brazil where the people are known to have high levels of body image and appearance concerns. This study aimed to test an adapted Tripartite Influence Model of body dissatisfaction and disordered eating behaviors among Brazilian women. A sample of 741 undergraduate students (Mage = 23.55 years, SD = 4.09) completed measures of sociocultural influences, internalization of body ideal, social appearance comparison, body dissatisfaction, muscularity dissatisfaction, disordered eating and body change behaviors. Structural equation modeling analyses indicated that the proposed etiological model for Brazilian women has good fit indexes (χ2(2064) = 6793.232; p = 0.0001; χ2/gl = 3.29; CFI = 0.82; PCFI = 0.79; RMSEA = 0.056 [IC90% = 0.053-0.057]). Parent and media influences were related with both internalization and social comparison, while peer influence with social comparison. A full mediation model was found, with both internalization and social comparison contributing to body dissatisfaction. Finally, body dissatisfaction was associated with disordered eating behaviors. The findings inform the importance of considering cultural aspects that influence body image and eating behaviors, and highlight the validity of the proposed etiological model for Brazilian women, that can be used for research and clinical purposes.
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Transtornos Dismórficos Corporais/fisiopatologia , Comportamento Alimentar , Transtornos da Alimentação e da Ingestão de Alimentos/etiologia , Modelos Psicológicos , Adulto , Transtornos Dismórficos Corporais/etnologia , Transtornos Dismórficos Corporais/psicologia , Brasil/epidemiologia , Estudos Transversais , Ego , Comportamento Alimentar/etnologia , Transtornos da Alimentação e da Ingestão de Alimentos/epidemiologia , Transtornos da Alimentação e da Ingestão de Alimentos/etnologia , Transtornos da Alimentação e da Ingestão de Alimentos/psicologia , Feminino , Humanos , Meios de Comunicação de Massa , Avaliação Nutricional , Poder Familiar/etnologia , Influência dos Pares , Escalas de Graduação Psiquiátrica , Reprodutibilidade dos Testes , Fatores de Risco , Autorrelato , Sexismo/etnologia , Sexismo/psicologia , Normas Sociais/etnologia , Estresse Psicológico/etnologia , Estresse Psicológico/fisiopatologia , Estresse Psicológico/psicologia , Adulto JovemRESUMO
Meat is both the most favored and most tabooed food in the world. In the developed world, there is a tension between its high nutritional density, preferred taste, and high status on the one hand, and concerns about weight, degenerative diseases, the ethics of killing animals, and the environmental cost of meat production on the other hand. The present study investigated attitudes toward beef, and toward vegetarians, among college students in Argentina, Brazil, France, and the USA. Across countries, men were more pro-beef, in free associations, liking, craving, and frequency of consumption. By country, Brazil and Argentina were generally the most positive, followed by France and then the United States. Ambivalence to beef was higher in women, and highest in Brazil. Only Brazilian and American women reported frequent negative associations to beef (e.g. "disgusting", "fatty"). Overall, most students had positive attitudes to beef, and the attitude to vegetarians was generally neutral. America and Brazilian women showed some admiration for vegetarians, while only French men and women had negative attitudes to vegetarians. In spite of frequent negative ethical, health, and weight concerns, in the majority of the sample, liking for and consumption of beef was maintained at a high level.
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Dieta Vegetariana/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Carne Vermelha , Adolescente , Adulto , Animais , Argentina , Atitude Frente a Saúde , Brasil , Bovinos , Comportamento de Escolha , Cultura , Feminino , Preferências Alimentares , França , Humanos , Masculino , Fatores Sexuais , Inquéritos e Questionários , Estados Unidos , Adulto JovemRESUMO
Portion size is recognized as a major determinant of food intake, at least over the short term, and could be related to overconsumption and obesity. In this study, we developed and evaluated a new visual measure of portion size (PS), examined whether the PS of chicken, ice cream, and soda varied among people in Brazil, France, and the USA, and tested whether PS was related to gender, body mass index, body weight, and socioeconomic status. We conducted a cross-sectional study using online convenience samples of university students (total N = 1391). Across all three foods, French personal and country PSs were significantly smaller than the other three countries. Estimated country PS was reliably larger than personal PS. Women's personal PSs were smaller than men's, but women's and men's estimates for country PS were similar. French personal and country PSs were the lowest. Some PSs had a weak but significant correlation with SES but were not significantly related to either weight or BMI. The study confirms French-American differences in personal PS and demonstrates that perceived norms correspond to individual PS.
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The ORTO-15 is a commonly used screening instrument for symptoms of Orthorexia Nervosa (ON), an obsessive overconcern with healthy eating. However, its limitations have been evidenced in several published factorial models. We analyzed the psychometric properties of seven different ORTO-15 factorial models using data from Brazilian adult participants (n = 1455; 71.4% women; M age = 29.5, SD = 8.9 years) from the country's five macro-regions who answered online questions for sample characterization and completed the Portuguese version of the ORTO-15 containing 15 items. We tested the fit of each model separately, analyzing data for men and women with separate confirmatory factor analysis, and using the Weighted Least Squares Mean and Variance Adjusted estimation method and goodness-of-fit indices. We also calculated the average variance extracted and the alpha ordinal and omega coefficients to analyze the convergent validity and reliability of the factors. None of the models tested presented adequate properties of validity and reliability. Although we found some acceptable reliability coefficients, they do not guarantee the validity of the data. Future investigators should be cautious when choosing the ORTO-15 for ON screening.
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Measures of beliefs and attitudes toward food have generally been limited to the measurement of more pathological eating attitudes (e.g., disordered eating). The Food Life Questionnaire (FLQ) and its short form (FLQ-SF) were developed to examine attitudes toward a broader range of foods; however, the factor structure of the FLQ-SF was not confirmed in any study with young women. In the present study, we performed a psychometric evaluation of the Brazilian Portuguese translation of the FLQ-SF in a sample of 604 women. We evaluated the factor structure using a two-step, split-sample exploratory and confirmatory factor analytic approach. Results supported a four-factor structure (i.e., weight concern, diet-health orientation, belief in a diet-health linkage, and food and pleasure) with 18 items (χ2/df = 2.09; CFI = 0.95; TLI = 0.94; RMSEA = 0.05 (90% CI = 0.04; 0.06; p > 0.05); and SRMR = 0.08). Additionally, we found good internal consistency for all FLQ-SF subscales (McDonald's ω = 0.79-0.89) and convergent validity with measures of feelings, beliefs, and behaviors involved in food attitudes. Collectively, these results support the use of the FLQ-SF in Brazilian women and provide a foundation to expand the literature on beliefs and attitudes toward food in this population.
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Emoções , Alimentos , Adulto , Humanos , Feminino , Brasil , Psicometria , EtnicidadeRESUMO
The Preference for Intuition and Deliberation in Food Decision-Making Scale (E-PID) was developed to evaluate both intuitive and deliberative food decision-making within a single instrument. However, its psychometric properties have only been assessed among German-speaking participants. The main aim of the present study was to evaluate evidence of validity and reliability of the E-PID among 604 Brazilian adult women. Exploratory (n = 289) and confirmatory factor analyses (n = 315) were conducted to evaluate the factor structure of the E-PID. Convergent validity was assessed correlating the E-PID with measures of eating behaviors (Tree-Factor Eating Questionnaire-18), intuitive eating (Intuitive Eating Scale-2), and a measure of beliefs and attitudes towards food (Food-Life Questionnaire-SF). McDonald's Omega coefficient (ω) was used to test the internal consistency of the E-PID. Results from an exploratory and confirmatory factor analysis supported a two-factor structure with seven items. We found good internal consistency (McDonald's ω = 0.77-0.81). Furthermore, the E-PID demonstrated adequate convergent validity with measures of intuitive, restrictive, emotional and uncontrolled eating, and beliefs and attitudes towards food. Results support the use of the E-PID as a measure of intuition and deliberation in food decision-making among Brazilian adult women, expanding the literature on eating decision-making styles.
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Tomada de Decisões , Comportamento Alimentar , Preferências Alimentares , Intuição , Psicometria , Humanos , Feminino , Adulto , Brasil , Reprodutibilidade dos Testes , Inquéritos e Questionários/normas , Adulto Jovem , Preferências Alimentares/psicologia , Comportamento Alimentar/psicologia , Pessoa de Meia-Idade , Análise Fatorial , Adolescente , Ingestão de Alimentos/psicologiaRESUMO
OBJECTIVE: The aim of this study was the cross-cultural adaptation of the Eating Belief Questionnaire (EBQ)-an instrument that assesses positive, negative, and permissive eating beliefs in relation to binge eating episodes-in its shorted version of 18 questions, into Brazilian Portuguese, for female teenagers. METHODS: Conceptual, semantic, cultural and operational equivalence of the items were evaluated. The semantic and cultural equivalence involved 12 bilingual people and 12 experts in eating behavior. Operational equivalence consisted of applying the transcultural adapted version of the EBQ-18 to 20 girls with a mean age of 17.55 (SD=1.00) years. Item's clarity and understanding were assessed by the Content Validity Coefficient. RESULTS: Questions 5, 6, 11, 14, 15, 16, 17 and 18, with adequate classification percentage for all equivalences, were not altered. The other items were adapted according to the committee's suggestions and by consensus among researchers. The adapted version of the EBQ-18 in Brazilian Portuguese displayed good content validity coefficient for clarity (CVC=0.975) and comprehension (CVC=0.971); except for item 3, all items had values between 0.88 and 1.00. CONCLUSION: The Brazilian Portuguese version of the EBQ-18 had a good understanding by the adolescent public when it comes to investigate the role of dietary beliefs in the maintenance of binge eating episodes. Future studies with adolescents are recommended, jointly assessing risk for and presence of eating disorders in significant clinical and non-clinical samples, as well as its psychometrics properties.
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Comparação Transcultural , Traduções , Adolescente , Humanos , Feminino , Brasil , Inquéritos e Questionários , Semântica , Psicometria , Reprodutibilidade dos TestesRESUMO
This study investigated which foods are most saliently judged as healthy and unhealthy in Brazil and Germany and the reasons for these judgements. Dietary guidelines in the two countries differ in that those in Brazil are based on a food processing classification rather than nutrient profiling, whereas dietary guidelines in Germany do not include the processing level of food. In an online study with 355 lay adults (Brazil n = 205, Germany n = 150), we explored which foods are listed as healthy and unhealthy using a free-listing method. The main reasons for these healthiness judgements were then identified with a one or two-word phrase and compared between countries. Saliency analysis was conducted to identify the 15 most salient healthy and unhealthy foods in each country. Principles of content analysis were used to assess the reasons why these 15 items were listed as most salient by the participants. Results showed that both Brazilians and Germans listed mostly natural or minimally processed food (e.g. fruits, vegetables, grains, fish and milk) as healthy, whereas types of convenience and fast food, sweets and other ultra-processed foods (e.g. chocolate, soda, French fries, pizza and hamburger) were the most salient unhealthy items listed in both countries. Differences in culturally relevant items listed in each country are discussed. Further, in both countries, despite differences in their dietary guidelines, food healthiness judgements for the most salient items listed relied heavily on the nutritional content of food, reinforced the 'good/healthy' and 'bad/unhealthy' dichotomy, and were centred on benefits or harms to the body (e.g. prevention or cause of diseases and weight control). The similarity of food healthiness judgements between the two countries, together with their agreement with conventional health claims and dietary guidelines, suggest that lay Brazilian and German adults are knowledgeable about the general concepts of 'healthy' and 'unhealthy' food. Finally, these findings suggest that rather than just providing more nutritional information, policymakers and health professionals need to take into account the multiple psychosocial and environmental determinants of eating in these countries.
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Fast Foods , Julgamento , Humanos , Adulto , Brasil , Frutas , VerdurasRESUMO
Instruments to evaluate psychosocial determinants of fruit and vegetable (F&V) consumption among adolescents are scarce, and there appears to be only one instrument - unnamed and unvalidated - that investigates determinants derived from theories of social psychology targeting the frequency of F&V consumption among adolescents. The scope of this paper was to present the process of cultural adaptation and factor validation of this instrument al-lowing its use in studies with Brazilian adolescents. The cross-cultural adaptation process was accomplished and the final version - named Psychosocial Influence Scale for Fruit and Vegetable Consumption among Adolescents (PSI-FAVES) - was tested with 429 students (58% female) using McDonald's omega (ω) reliability and Confirmatory Factor Analysis (CFA) as analytical methods. The final version required refinement and the instrument showed adequate overall reliability (ω=0.86) and good fit of the data to the previously elaborated model (CFI=0.955; TLI=0.951 and RMSEA (90%CI) =0.043 (0.038-0.049)), being the first systematically validated instrument to investigate psychosocial determinants of F&V consumption among adolescents.
Instrumentos para avaliar determinantes psicossociais da ingestão de frutas, verduras e legumes (FLV) de adolescentes são escassos, e há um instrumento - sem nome e validação - que investiga estes determinantes oriundos de teorias da psicologia social e direcionado à frequência de ingestão semanal de FLV de adolescentes. O objetivo foi apresentar o processo de adaptação e validação fatorial deste instrumento para ser aplicado em estudos na população brasileira. Realizou-se equivalência conceitual e de itens; equivalência semântica por tradutores e especialistas e semântica e operacional por entrevistas dirigidas com público-alvo. A versão final - denominada Escala de Influências Psicossociais da ingestão de Frutas, Verduras e Legumes de Adolescentes (PSI-FAVES) - foi testada com 429 estudantes (58% mulheres) utilizando confiabilidade por ômega de McDonald (ω) e Análise Fatorial Confirmatória (AFC) como métodos analíticos. A versão final demandou refinamento e o instrumento apresentou confiabilidade total adequada (ω=0,86) e bom ajuste dos dados ao modelo previamente conjecturado (CFI=0,955; TLI=0,951 e RMSEA (90%IC)=0,043 (0,038-0,049), sendo o primeiro instrumento sistematicamente validado para investigar determinantes psicossociais da ingestão de FLV de adolescentes.
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Frutas , Verduras , Humanos , Feminino , Adolescente , Masculino , Inquéritos e Questionários , Reprodutibilidade dos Testes , Psicologia Social , PsicometriaRESUMO
Obesity-related prejudice and discrimination may have a source in health professionals and students. The objective was to assess anti-fat attitudes among Brazilian nutrition undergraduates who reported demographic data, weight, height and responded the Antifat Attitudes Test (AFAT) and the Brazilian Silhouette Scales to assess body image satisfaction and perception. Total and subscales of AFAT scores were compared among categories using the Mann-Whitney U test. Associations of participants' characteristics with the AFAT were analyzed using multiple linear regression. Total AFAT score was positively associated with male sex (ß: .13; p < .001), age (ß: .06; p < .001), educational institution outside capital (ß: .03; p < .05), private institutions (ß: .08; p < .001); and negatively associated with income (ß: -.05; p = .006), participants who perceived themselves with increased BMI (ß: -.15; p < .001) and those at the third year of course (ß: -.05; p = .041). Subscales scores were positively associated with male sex and age; and negatively associated with those who perceived themselves heavier. They have anti-fat attitudes especially if they were man, older, from private institutions, are at the beginning of the course, and have lower household income - and less weight bias if they perceived with increased BMI.
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Atitude , Obesidade , Índice de Massa Corporal , Brasil , Humanos , Masculino , Obesidade/epidemiologia , EstudantesRESUMO
BACKGROUND: Lower bone mineral density (BMD) increases the risk of osteoporosis in individuals with eating disorders (EDs), particularly women with anorexia nervosa (AN), making them susceptible to pain and fractures throughout adulthood. In AN, low weight, hypothalamic amenorrhoea, and longer illness duration are established risk factors for low BMD, and in people with other EDs a history of AN seems to be an important risk factor for low BMD. PURPOSE: To conduct a systematic review and meta-analysis of BMD in individuals with EDs, including AN, bulimia nervosa (BN), binge-eating disorder (BED) and other specified feeding or eating disorders (OSFED) compared to healthy controls (HC). METHODS: Following PRISMA guidelines, electronic databases were reviewed and supplemented with a literature search until 2/2022 of publications measuring BMD (dual-energy X-ray absorptiometry or dual photon absorptiometry) in females with any current ED diagnosis and a HC group. Primary outcomes were spine, hip, femur and total body BMD. Explanatory variables were fat mass, lean mass and ED clinical characteristics (age, illness duration, body mass index (BMI), amenorrhoea occurrence and duration, and oral contraceptives use). RESULTS: Forty-three studies were identified (N = 4163 women, mean age 23.4 years, min: 14.0, max: 37.4). No study with individuals with BED met the inclusion criteria. BMD in individuals with AN (total body, spine, hip, and femur), with BN (total body and spine) and with OSFED (spine) was lower than in HC. Meta-regression analyses of women with any ED (AN, BN or OSFED) (N = 2058) showed low BMI, low fat mass, low lean mass and being amenorrhoeic significantly associated with lower total body and spine BMD. In AN, only low fat mass was significantly associated with low total body BMD. CONCLUSION: Predictors of low BMD were low BMI, low fat mass, low lean mass and amenorrhoea, but not age or illness duration. In people with EDs, body composition measurement and menstrual status, in addition to BMI, are likely to provide a more accurate assessment of individual risk to low BMD and osteoporosis.
Individuals with eating disorders (EDs) have an increased risk for developing osteoporosis and suffering fractures. To better understand this problem, we conducted a systematic review and meta-analysis comparing bone mineral density (BMD) of females with EDs with that of healthy people without an ED. We also tried to identify key factors linked with reduced bone mass in EDs. We included studies reporting BMD of individuals with anorexia nervosa (AN), bulimia nervosa (BN), binge-eating (BED) or other non-specified ED (OSFED), and of healthy controls. We found that people with AN had overall lower BMD than controls and also in the spine, hip, and femur. In people with BN, there was lower BMD overall and in the spine, but that must be only in those who previously had AN. In people with OSFED, BMD was lower in the spine. Having a low BMI, low fat mass, low lean mass and not having menstrual periods seem to negatively affect BMD. Therefore, this systematic review supports the idea that people with current or past AN, irrespective of their current ED diagnosis, should have their bone health assessed. For early identification of those most at risk, body composition measurements, current menstrual status, duration of amenorrhoea and presence or absence of a history of AN should be considered in clinical practice.
RESUMO
Food cultures can play a role in health and well-being. This raises the questions of whether nation boundaries unite the food cultures of different regions and ethnic groups, what characterises food cultures from very different parts of the world, and what similarities and differences exist. The present study aimed to investigate these questions with regard to eating traditions and modern eating practices. In this cross-sectional study, we recruited 3722 participants from ten countries - Brazil, China, France, Germany, Ghana, India, Japan, Mexico, Turkey, and the USA. Participants represented 25 regional and ethnic groups. They were queried about 86 traditional and modern facets of their food cultures in interviews, paper-pencil and online questionnaires. First, hierarchical cluster analysis suggested nine distinct clusters of food cultures - the food cultures of the Brazilian, Chinese, Ghanaian, Indian, Japanese, Mexican, Turkish, African and Latin US American samples, and of European descendants. Interestingly, for seven of the ten investigated countries, nation boundaries united food cultures. Second, each of the nine food culture clusters was characterised by a unique pattern of traditional and modern eating practices. Third, the nine food culture clusters varied more in their traditional eating practices than their modern eating practices. These results might promote a better understanding of the link between food cultures and health and well-being that goes beyond nutrients. For instance, food cultures might be linked to well-being via strengthening people's sense of cultural identity. Moreover, the present results contribute to a better understanding of the complex interplay between food and culture, and could help in developing culturally competent interventions to improve diet and reduce the risk of eating-related diseases.