Separating the Effects of Gender and Weight-Loss Desire on Body Satisfaction and Disordered Eating Behavior

The effects of conjugated linoleic acid supplementation on anthropometrics and body composition indices in adults: a systematic review and dose-response meta-analysis

Prior meta-analytic investigations over a decade ago rather inconclusively indicated that conjugated linoleic acid (CLA) supplementation could improve anthropometric and body composition indices in the general adult population. More recent investigations have emerged, and an up-to-date systematic review and meta-analysis on this topic must be improved. Therefore, this investigation provides a comprehensive systematic review and meta-analysis of randomised controlled trials (RCT) on the impact of CLA supplementation on anthropometric and body composition (body mass (BM), BMI, waist circumference (WC), fat mass (FM), body fat percentage (BFP) and fat-free mass (FFM)) markers in adults. Online databases search, including PubMed, Scopus, the Cochrane Library and Web of Science up to March 2022, were utilised to retrieve RCT examining the effect of CLA supplementation on anthropometric and body composition markers in adults. Meta-analysis was carried out using a random-effects model. The I2 index was used as an index of statistical heterogeneity of RCT. Among the initial 8351 studies identified from electronic databases search, seventy RCT with ninety-six effect sizes involving 4159 participants were included for data analyses. The results of random-effects modelling demonstrated that CLA supplementation significantly reduced BM (weighted mean difference (WMD): -0·35, 95 % CI (-0·54, -0·15), P < 0·001), BMI (WMD: -0·15, 95 % CI (-0·24, -0·06), P = 0·001), WC (WMD: -0·62, 95% CI (-1·04, -0·20), P = 0·004), FM (WMD: -0·44, 95 % CI (-0·66, -0·23), P < 0·001), BFP (WMD: -0·77 %, 95 % CI (-1·09, -0·45), P < 0·001) and increased FFM (WMD: 0·27, 95 % CI (0·09, 0·45), P = 0·003). The high-quality subgroup showed that CLA supplementation fails to change FM and BFP. However, according to high-quality studies, CLA intake resulted in small but significant increases in FFM and decreases in BM and BMI. This meta-analysis study suggests that CLA supplementation may result in a small but significant improvement in anthropometric and body composition markers in an adult population. However, data from high-quality studies failed to show CLA's body fat-lowering properties. Moreover, it should be noted that the weight-loss properties of CLA were small and may not reach clinical importance.

The effect of gender in binge eating behavior in Chinese culture: the serial mediation model of body dissatisfaction and self-acceptance

Introduction

The gender difference of binge eating behavior been highlighted by previous studies. However, psychological mechanisms underlying the gender difference of binge eating behavior remain unclear. This study addressed this issue from a sociocultural perspective.

Methods

Firstly, we investigated the mediation effect of body dissatisfaction on the gender difference of binge eating behavior. Secondly, we examine the serial mediating role of body dissatisfaction and self-acceptance in gender differences of binge eating behavior. Here, we analyzed data from 703 Chinese university students using SPSS 26.0 and SPSS PROCESS.

Results

In Chinese culture, body dissatisfaction and self-acceptance independently or through a serial way mediate the gender differences in binge eating behaviors.

Discussion

We discussed the implications and limitations of the present study.

Body image as a multidimensional concept: A systematic review of body image facets in eating disorders and muscle dysmorphia

Body image disturbance is core to the psychopathology of eating disorders (EDs), and related disorders such as muscle dysmorphia (MD). Global measures of body image fail to quantify specific aspects of body image disturbance that characterizes EDs, and may be differentially associated to outcomes. The aim of this systematic review was to provide an overview of specific body image facets and synthesize findings from controlled studies that compared clinical ED/MD and control-comparison groups in body image disturbance. One-hundred sixty-seven studies met inclusion criteria, and reported on comparisons among 30,584 individuals in 28 body image facets, which were more broadly grouped into evaluative, perceptual, cognitive-affective and motivational categories for the purpose of the present review. Effect sizes were calculated as Cohen's d for every comparison between ED and control groups. Body dissatisfaction (evaluative category) was the most prevalent facet assessed across studies (62 %), and differences between clinical and control groups were the largest in this category, especially for bulimia nervosa (d = 1.37). Scarcity of studies with male and MD clinical samples, and use of single-item and non-validated measures, should encourage development of instruments for body image facets pertinent to EDs and MD that can be validly applied across gender.

Ketogenic diets, physical activity and body composition: a review

Obesity remains a serious relevant public health concern throughout the world despite related countermeasures being well understood (i.e. mainly physical activity and an adjusted diet). Among different nutritional approaches, there is a growing interest in ketogenic diets (KD) to manipulate body mass (BM) and to enhance fat mass loss. KD reduce the daily amount of carbohydrate intake drastically. This results in increased fatty acid utilisation, leading to an increase in blood ketone bodies (acetoacetate, 3-β-hydroxybutyrate and acetone) and therefore metabolic ketosis. For many years, nutritional intervention studies have focused on reducing dietary fat with little or conflicting positive results over the long term. Moreover, current nutritional guidelines for athletes propose carbohydrate-based diets to augment muscular adaptations. This review discusses the physiological basis of KD and their effects on BM reduction and body composition improvements in sedentary individuals combined with different types of exercise (resistance training or endurance training) in individuals with obesity and athletes. Ultimately, we discuss the strengths and the weaknesses of these nutritional interventions together with precautionary measures that should be observed in both individuals with obesity and athletic populations. A literature search from 1921 to April 2021 using Medline, Google Scholar, PubMed, Web of Science, Scopus and Sportdiscus Databases was used to identify relevant studies. In summary, based on the current evidence, KD are an efficient method to reduce BM and body fat in both individuals with obesity and athletes. However, these positive impacts are mainly because of the appetite suppressive effects of KD, which can decrease daily energy intake. Therefore, KD do not have any superior benefits to non-KD in BM and body fat loss in individuals with obesity and athletic populations in an isoenergetic situation. In sedentary individuals with obesity, it seems that fat-free mass (FFM) changes appear to be as great, if not greater, than decreases following a low-fat diet. In terms of lean mass, it seems that following a KD can cause FFM loss in resistance-trained individuals. In contrast, the FFM-preserving effects of KD are more efficient in endurance-trained compared with resistance-trained individuals.

Nutrition knowledge moderates the association between perfectionism and shape/weight concerns

Perfectionistic traits have been associated with stronger weight and diet concerns. Maladaptive perfectionism is tied to critical evaluation tendencies such as excessive concern about making mistakes, increasing one's risk for eating disorder pathology. Knowledge about healthy diet and nutrition may be one factor influencing associations between perfectionistic tendencies, as individuals with eating disorders may be more attuned to sources of nutrients. The current study examined whether nutrition knowledge moderates the association between one facet of perfectionism, concern over mistakes, and shape/weight concerns and the association between concern over mistakes and global eating pathology. College women (N = 122) completed questionnaires on disordered eating attitudes, nutrition knowledge, and perfectionism. Concern over mistakes was positively related to shape/weight concerns and global eating pathology. Nutrition knowledge significantly moderated the association between concerns over mistakes and shape/weight concerns, such that the association was stronger among those with higher levels of nutrition knowledge. Furthermore, nutrition knowledge displayed trend-level significance for the moderation of the association between concern over mistakes and global eating pathology. College women displaying high levels of concern over mistakes who are more informed about nutrition knowledge may be more vulnerable to developing concerns about body shape/weight and eating disorder pathology.

A plant-based diet in overweight adults in a 16-week randomized clinical trial: The role of dietary acid load

BACKGROUND

Evidence suggests that changes in dietary acid load may influence body weight, body composition, and insulin sensitivity.

METHODS

Participants (n = 244) were randomly assigned to an intervention (vegan) (n = 122) or control group (n = 122) for 16 weeks. Before and after the intervention period, body composition was measured by dual X-ray absorptiometry. Insulin resistance was assessed with the Homeostasis Model Assessment (HOMA-IR) index and predicted insulin sensitivity index (PREDIM). Repeated measure ANOVA was used for statistical analysis.

RESULTS

Potential Renal Acid Load (PRAL) and Net Endogenous Acid Production (NEAP) decreased significantly in the vegan group with no change in the control group (treatment effect -24.7 mEq/day [95% CI -30.2 to -19.2]; p < 0.001; and -23.8 mEq/day [95% CI -29.6 to -18.0]; p < 0.001, respectively). Body weight decreased by 6.4 kg in the vegan group, compared with 0.5 kg in the control group (treatment effect -5.9 kg [95% CI -6.8 to -5.0]; Gxt, p < 0.001), largely due to a reduction in fat mass and visceral fat. HOMA-IR index decreased and PREDIM increased in the vegan group. After adjustment for energy intake, changes in PRAL and NEAP correlated positively with changes in body weight (r = +0.37; p < 0.001; and r = +0.37; p < 0.001, respectively), fat mass (r = +0.32; p < 0.001; and r = +0.32; p < 0.001, respectively), visceral fat (r = +0.19; p = 0.006; and r = +0.15; p = 0.03, respectively), and HOMA (r = +0.17; p = 0.02; and r = +0.20; p = 0.006, respectively), and negatively with changes in PREDIM (r = -0.22; p = 0.002; and r = -0.27; p < 0.001, respectively).

CONCLUSION

Dietary acid load as part of a plant-based diet was associated with changes in body weight, body composition, and insulin sensitivity, independent of energy intake. Mechanistic explanations suggest that the relationship may be causal.

TRIAL REGISTRATION

ClinicalTrials.gov number, NCT03698955.

Sex-specific effects of ketogenic diet after pre-exposure to a high-fat, high-sugar diet in rats

BACKGROUND AND AIMS

The objectives were to evaluate the relationship between ketogenic diets, the ketone body beta-hydroxybutyrate (BHB), parameters known to increase risk for cardiovascular and metabolic diseases in both sexes, using a pre-clinical model of obesity.

METHODS AND RESULTS

Rats had access to a diet high in fat and sugar (HFS) for 12 weeks. After HFS, they switched to chow (HFS-CH) or ketogenic diet (HFS-KD) for 3 weeks to model a dietary intervention. Body weight, adiposity, and food intake were measured. Glucose tolerance and corticosterone response to stress were measured after HFS, then again after the intervention. Both sexes increased body weight, food intake, and adiposity compared to control (CTL) while on HFS. HFS females showed impaired glucose tolerance. HFS males developed a dampened corticosterone to stress, whereas HFS females developed an exacerbated response. The effects of HFS on adiposity and corticosterone were reversed in HFS-CH males. These same improvements were observed in HFS-CH females, although they still had impaired glucose tolerance. HFS-KD males showed some improvements, however, they still had higher body weight and adiposity than CTL. The same pattern was observed in females. These beneficial effects of KD correlated with plasma BHB levels in females but not in males.

CONCLUSIONS

These data model effects reported in clinical literature and serve as a valuable translational tool to further test causal mechanisms that lead to desirable outcomes of KD. These sex-specific relationships are important, as KD could potentially affect endocrine mechanisms differently in males and females.

Fasting and refeeding cycles alter subcutaneous white depot growth dynamics and the morphology of brown adipose tissue in female rats

Intermittent food restriction (IFR) is used mainly for weight loss; however, its effects on adipose tissue are not known when alternating with an obesogenic diet. To demonstrate its effects on morphological dynamics of fat deposits, female Wistar rats were distributed into groups: standard control (ST-C), with commercial diet; DIO control (DIO-C), with a diet that induces obesity (DIO) during the first and last 15 d, replaced by a standard diet for thirty intermediate days; standard restricted (ST-R), with standard diet during the first and last 15 d, with six cycles of IFR at 50 % of ST-C; and DIO restricted (DIO-R), in DIO during the first and last 15 d, with six cycles of IFR at 50 % of DIO-C. At 105 d of life, white adipose tissue (WAT) and brown adipose tissue (BAT) deposits were collected, weighed and histology performed. The DIO-R group showed higher total food intake (DIO-R 10 768·0 (SEM 357·52) kJ/g v. DIO-C 8868·6 (SEM 249·25) kJ/g, P < 0·0001), energy efficiency during RAI (DIO-R 2·26 (SEM 0·05) g/kJ v. DIO-C 0·70 (SEM 0·03) g/kJ, P < 0·0001) and WAT (DIO-R 5·65 (SEM 0·30) g/100 g v. DIO-C 4·56 (SEM 0·30) g/100 g) than their respective control. Furthermore, IFR groups presented hypertrophy of WAT and BAT, as well as fibrosis in BAT. Thus, IFR can establish prospective resistance to weight loss by favouring changes in adipose tissue morphology, increased energy intake and efficiency. Finally, the DIO diet before and after IFR aggravates the damages caused by the restriction.

The moderating effect of gender role on the relationships between gender and attitudes about body and eating in a sample of Italian adolescents

PURPOSE

The differential prevalence of eating disorders in males and females can be explained by the impact of gender-role orientations. Inside the Italian socio-cultural context, gender socialization can be influenced by stereotypical gender beliefs, and this may contribute to the psychological distress of individuals who identify with discrepant gender roles from their biological sex. Our study explored, within the Italian context, the potential moderating effect of masculinity and femininity on the relationships between gender and attitudes about body and eating.

METHODS

Nine hundred and twenty Italian male and female adolescents (M = 427, F = 493; age 14-21 years) completed the Eating Disorder Inventory-2 (EDI-2) and the Bem Sex-Role Inventory (BSRI).

RESULTS

A moderating effect of gender role on the relationship between gender and bulimia, and drive of thinness emerged. Girls with higher levels of masculinity scored higher on bulimia than did their counterparts with lower levels, and boys with higher levels of femininity scored higher on bulimia and on drive for thinness than did their counterparts with lower levels. Data did not reveal a moderating effect of gender role on the relationship between gender and body satisfaction.

CONCLUSIONS

Our data suggest that adolescents who endorsed a gender role that is socially considered discrepant from their biological sex (girls with higher levels of masculinity and boys with higher levels of femininity) are more likely to show higher level of bulimia and drive of thinness. This suggests the need for prevention and treatment programmes for eating disorders that take into account individuals' gender-role orientation and the influence that culturally dominant gender beliefs can exert on it.

Sociodemographic factors associated with reported attempts at weight loss and specific dietary regimens in Sweden: The SWEDIET-2017 study

The aim of this study was to investigate the prevalence of active weight loss attempts in Sweden, and to study the extent to which overweight individuals may or may not correctly identify themselves as overweight. Additional aims were to determine the sociodemographic factors associated with following a specific dietary regimen and with attempts at losing weight. A postal questionnaire was sent to 2000 randomly selected men and women living in Sweden. The inclusion criteria was an age of 20–65 years. In total, the response rate was 28% and the completed questionnaires from 555 participants were analyzed in this study. In total, 46% of participants were overweight or obese by self-reported height and weight. Additionally, 42% of overweight and 90% of obese individuals correctly identified themselves as being overweight. Weight loss was pursued by 41% and was more common among women, those with higher physical activity, higher BMI and higher socioeconomic position. Overall, 22% followed a specific diet, and following a dietary regimen was associated with female gender, higher education level and overweight. In conclusion, almost half of the participants were either overweight or trying to lose weight. Trying to lose weight and following a specific dietary regimen were related to female gender, high BMI and higher socioeconomic position. This could indicate that the socioeconomic disparities in health are further exacerbated, as overweight individuals with poor socioeconomic position might be more likely to remain overweight.

Fat or fiction? Effects of body size, eating pathology, and sex upon the body schema of an undergraduate population

Although there is a growing consensus that women with anorexia nervosa have a distorted body schema, the origins of this disturbance remain uncertain. The present investigation examined the effects of body size, eating pathology, and sex upon the body schema of an at-risk, undergraduate population. In Study 1, 98 participants mentally simulated their passage through apertures. When aperture width was manipulated, narrow and broad women over- and under-estimated their spatial requirements for passage, respectively. This relationship was exacerbated by dietary restraint. When aperture height was manipulated, short and tall men over- and under-estimated their spatial requirements for passage, respectively. Study 2 (N=32) replicated the association between women's veridical and internally-represented widths, although no significant effects of eating pathology were observed. Our findings suggest that body schema enlargement is not necessarily pathological, and may be driven by normal perceptual biases and internalised sociocultural body ideals.

Trends and disparities in the prevalence of physicians' counseling on exercise among the U.S. adult population, 2000-2010

Recognizing the undisputed health benefits of exercise, physicians' counseling has been included in the Healthy People Objectives since 2000. To address the paucity of data on such counseling at the national level, we examined changing trends and disparities in receiving physicians' counseling on exercise among the physically-able, non-institutionalized U.S. adult population. Data from the 2000, 2005, and 2010 National Health Interview Surveys (NHIS) were examined using logistic regression that included race/ethnicity, age, gender, education, insurance status, number of physician visits in the past year, and body mass index. In 2000, only 22.9% of NIHS respondents had received counseling on exercise, increasing to 33.6% in 2010. Compared with non-Hispanic Whites, non-Hispanic Blacks were 27% less likely to receive exercise advice in 2000 (adjusted odds ratio [AOR] 0.73, 95% confidence interval [CI] 0.61-0.87). In later years, they were equally likely to receive advice. Although decreased over the years, male respondents were significantly (34% to 23%) less likely to report receipt of exercise counseling than female patients (in 2010: AOR 0.77, CI 0.72-0.83). Uninsured respondents were 35% less likely to report receiving exercise advice from their provider in all study years (2010: AOR 0.64, CI 0.59-0.72). Patients with increasing levels of education were increasingly more likely to report receipt of counseling in each successive survey year. The overall prevalence of physicians' counseling on exercise increased moderately between 2000 and 2010. Some disparities narrowed and even reversed but significant disparities continue to exist across gender, insurance status, and education level.

The role of personality in body image dissatisfaction and disordered eating: discrepancies between men and women

BACKGROUND

Body image and disordered eating research has focused mostly on the female experience. The present study examined gender differences in the relationship between personality, disordered eating, and body image dissatisfaction.

METHODS

Participants were 238 female and 85 male undergraduates (M_age = 20.52 years, SD = 4.22) at a Canadian university. Materials included a battery of self-report questionnaires pertaining to personality, body image, and disordered eating.

RESULTS

As expected, females reported more body dissatisfaction and disordered eating than males. Personality factors were found to be significantly related to the experience of body dissatisfaction in both genders. Further, several personality traits significantly contributed to the prediction of male (high Neuroticism, low Conscientiousness) and female (high Neuroticism) body dissatisfaction beyond the influence of body mass index (BMI). Interestingly, and contrary to findings with female participants, personality traits were not significantly related to disordered eating scores in men. Among women, disordered eating scores were significantly predicted by high Neuroticism and Extraversion, and low Conscientiousness.

CONCLUSIONS

Although the relationship between disordered eating, body image dissatisfaction, and personality is well-documented in females, this relation may differ for males. The focus on male body image has been increasing in Western society; exploring how males view their bodies may be beneficial to researchers and clinicians alike.

Trends and disparities in the prevalence of physicians' counseling on diet and nutrition among the U.S. adult population, 2000-2011

BACKGROUND

Although healthy eating plays a crucial role in addressing the obesity and chronic disease epidemics, a few Americans have diets that meet dietary guidelines. Because physicians-delivered counseling is a strong predictor for behavioral modification among patients, the Healthy People Objectives have emphasized diet counseling since 2000. However, research on impact of physicians' counseling over time on a national level has been limited.

METHODS

We used data from the 2000 and 2011 National Health Interview Surveys to apply a logistic regression model to identify predictors of physicians' counseling and examine any changes in disparities over a decade.

RESULTS

In 2000, only 23.7% of our national sample had received dietary counseling, it increased to 32.6% in 2011. Hispanics were less likely than Whites to receive advice on diet in 2000 (adjusted odds ratio [AOR]=0.74, 95% confidence interval [CI]=0.62-0.88). By 2011, Hispanics 18% (AOR=1.18, CI=1.09-1.28) and Blacks were 42% (AOR=1.42, CI=1.32-1.54) more likely to receive advice from their physicians on diet than Whites. In both years, men were significantly less likely than women to receive counseling. The uninsured patients were increasingly less likely than insured patients in receiving diet counseling, being 60% less likely in 2011 (AOR=0.40, CI=0.37-0.40). Obese patients were substantially (88% in 2000 to 290% in 2011) more likely to receive counseling than normal-weight patients.

CONCLUSIONS

The overall prevalence of physicians' counseling on diet increased moderately between 2000 and 2011. However, substantial disparities in dietary counseling related to access to care and gender continue to exist.

Exploring the complexities of body image experiences in middle age and older adult women within an exercise context: The simultaneous existence of negative and positive body images

Despite many body changes that accompany the aging process, the extant research is limited on middle age and older adults' body image experiences. The purpose of the present study was to explore how body image is represented for middle age and older adult women. Using thematic analysis, 10 women over the age of 55 were interviewed within an exercise context. The following themes were found: body dissatisfaction, body satisfaction despite ageist stereotypes, neutral body image within cohort, and positive body image characteristics. Negative and positive body images were experienced simultaneously, with neutral experiences expressed as low levels of dissatisfaction. This supports the contention that negative and positive body images exist on separate continuums and neutral body image is likely on the same continuum as negative body image. Programs that foster a social support network to reduce negative body image and improve positive body image in older female populations are needed.

Toward understanding the role of body dissatisfaction in the gender differences in depressive symptoms and disordered eating: a longitudinal study during adolescence

This study was aimed at examining whether body dissatisfaction in early adolescence contributes to the development of gender differences in depressive symptoms and disordered eating across early to mid-adolescence, testing both a mediation hypothesis (higher levels of body dissatisfaction in girls, provided body dissatisfaction is a predictor of psychopathology beyond the effect of gender) and a moderation hypothesis (more detrimental effect of body dissatisfaction in girls). A community-based sample initially comprising 882 (49.55% female) adolescents (M(age) = 12.85) was followed-up after 2 and 4 years. Multilevel models were used to analyze the data. Results supported the mediation hypothesis for depressive symptoms and disordered eating, and the moderation hypothesis for disordered eating. Whereas gender differences in depressive symptoms may be simply linked to dissimilar levels of body dissatisfaction in girls and boys, gender differences in disordered eating may arise from both dissimilar levels and effects of body dissatisfaction for each gender.

Satisfação corporal em acadêmicos de Educação Física: proposta de um questionário

A satisfação corporal pode ser dimensionada em: imagem corporal, satisfação com o peso e catexia corporal. Avaliou-se a satisfação corporal de 302 acadêmicos de Educação Física e sugeriu-se um questionário. Os estudantes se consideraram de médio a muito satisfeitos com seus corpos. Os homens apresentaram maiores médias para: "quanto acha seu corpo proporcional" e "quanto está satisfeito com seu corpo". Já as mulheres para: "quanto olha seu corpo no espelho", "quanto toca o corpo de forma geral", "quanto percebe que os outros acham sexy" e "quanto gostaria de ser mais magra". A análise fatorial confirmou o modelo e obteve-se α=,757.

It's not just a "woman thing:" the current state of normative discontent

This study assessed "normative discontent," the concept that most women experience weight dissatisfaction, as an emerging societal stereotype for women and men (Rodin, Silberstein, & Streigel-Moore, 1984). Participants (N = 472) completed measures of stereotypes, eating disorders, and body image. Normative discontent stereotypes were pervasive for women and men. Endorsing stereotypes varied by sex and participants' own disturbance, with trends towards eating disorder symptomotology being positively correlated with stereotype endorsement. Individuals with higher levels of body image and eating disturbance may normalize their behavior by perceiving that most people share their experiences. Future research needs to test prevention and intervention strategies that incorporate the discrepancies between body image/eating-related stereotypes and reality with focus on preventing normalization of such experiences.

Predicting ideal body mass index: what does clothing size have to do with it?

This study examined demographic and anthropometric variables as predictors of ideal body mass index (BMI) from cross-sectional, archival, self-reported data from the Psychology of Size Survey of 4014 U.S. residents collected in 2007. As hypothesized, ideal BMI can be predicted by a within gender hierarchical multiple regression analysis with the predictor variables of age, number of clothing sizes from ideal size, and current BMI; these variables account for 54.1% of variance in women's ideal BMI and 65.5% of variance in men's ideal BMI. Findings also demonstrated a logarithmic relationship between current BMI and ideal BMI, with increasing variance in ideal BMI for individuals with high current BMIs. These findings evidence the strong role of current body characteristics in the formation of ideals. Understanding how individuals conceptualize body ideals can inform researchers and practitioners alike, as this evidence has important implications related to both medical and psychological health.

Having a personal weight goal that mismatches healthy weight recommendations increases the likelihood of using unhealthy behaviors among a representative population-based sample of adolescents

Free living populations adopt practices designed to maintain or influence their weight. These practices include at least two components: a personal weight goal and use of a variety of behaviors to reach this personal weight goal. Personal weight goals can either concur (match) or not concur (mismatch) with recommendations that a health professional might stipulate for achieving a healthy weight status. The variety of behaviors used to achieve a personal weight goal can be thought of as inherently healthy, unhealthy, or disordered. We examined associations between matched vs. mismatched personal weight goals and the frequency of use of different types of weight-related behaviors among adolescents. Measures included whether or not personal weight goals matched or mismatched aims that should be pursued given current weight status and self-reported frequency of use of behaviors from a representative population-based sample of adolescents (n=2, 346, 51% female; 93.3% complete data). Sex-specific multilevel logistic and ordinal regression analyses showed that pursuing a mismatched personal weight goal increases the likelihood of using unhealthy behaviors across sexes. This association is however not significant for healthy and disordered behaviors. We conclude that there is an association between pursuing a mismatched personal weight goal and the use of unhealthy behaviors but not with healthy or disordered behaviors.

Sexual orientation and weight, body image, and weight control practices among young Australian women

OBJECTIVES

We compare weight, body image, and weight control practices of young adult Australian women according to sexual orientation.

METHODS

Cross-sectional analyses of the second survey of 9683 young adult women in the Australian Longitudinal Study on Women's Health (ALSWH); the weight, weight control practices, and body image of exclusively heterosexual, mainly heterosexual, bisexual, and lesbian women were compared.

RESULTS

Lesbians were less likely to be dissatisfied with their body image (body weight: beta -0.64, 95% CI -1.10- -0.18; body shape: beta -0.83, 95% CI -1.27- -0.40; overall: beta -0.74, 95% CI -1.14- -0.32), to cut down on fats and sugars (OR 0.53, 95% CI 0.34-0.85), and to engage in healthy weight control practices overall (OR 0.48, 95% CI 0.29-0.81) compared with exclusively heterosexual women. Compared with exclusively heterosexual women, bisexual women were more likely to weight cycle (OR 2.22, 95% CI 1.22-4.03). Compared with exclusively heterosexual women, mainly heterosexual and bisexual women were more likely to engage in unhealthy weight control practices overall (mainly heterosexual: OR 1.76, 95% CI 1.42-2.17; bisexuals: OR 2.89, 95% CI 1.57-5.33), such as smoking (mainly heterosexuals: OR 1.83, 95% CI 1.38-2.44; bisexuals: OR 3.80, 95% CI 1.94-7.44) and cutting meals (mainly heterosexuals: OR 1.58, 95% CI 1.23-2.02; bisexual women: OR 3.45, 95% CI 1.82-6.54). Mainly heterosexual women were more likely to vomit (mainly heterosexuals: OR 2.41, 95% CI 1.73-3.36) and use laxatives (mainly heterosexuals: OR 1.56, 95% CI 1.12-2.19).

CONCLUSIONS

Future research should explore why bisexual and mainly heterosexual women are at higher risk of disordered eating behaviours. Understanding why lesbians have a healthier body image would also provide insights into how to improve the body image of other groups. It is critical that public health policy and practice address less healthy weight control practices of sexual minority groups.

Materialism, Sociocultural Appearance Messages, and Paternal Attitudes Predict College Women's Attitudes About Cosmetic Surgery

Rates of cosmetic surgery procedures have increased dramatically over the past several decades, but only recently have studies of cosmetic surgery attitudes among the general population begun to appear in the literature. The vast majority of those who undergo cosmetic surgery are women. We examined cosmetic surgery attitudes among 218 undergraduate women, most of whom were White. Specifically, we examined their acceptance of cosmetic surgery and expressed desire to undergo cosmetic surgery procedures, and several potential predictors: appearance attitudes of mothers, fathers, and friends; awareness and internalization of sociocultural appearance messages; and materialism. Multiple regression analyses indicated that materialism and internalization of sociocultural messages consistently emerged as significant predictors of acceptance of cosmetic surgery and desire for cosmetic surgery procedures. Paternal attitudes positively predicted acceptance of cosmetic surgery for social reasons and desire for cosmetic surgery; nonmaterialism negatively predicted considering cosmetic surgery and the desire for cosmetic surgery procedures.