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Abstract Obesity and overweight are major health concerns, with a 19.7% prevalence among Malaysian adults, as reported in the 2019 National Health and Morbidity Survey. This study assessed the effectiveness of an educational intervention on weight control intention using the Health Belief Model (HBM). A quasi-experimental design was employed, involving 140 participants equally divided into an intervention group (IG) and a control group (CG). Post-intervention, the IG showed significant improvement in perceived self-efficacy in dieting (mean score 3.96 ± 0.85) compared to the CG (3.76 ± 0.86, p = 0.003). Perceived self-efficacy in exercise also increased in the IG (4.12 ± 0.52) compared to the CG (3.51 ± 0.94, p

Abstract Obesity is an abnormal and potentially dangerous condition caused by excess body fat accumulation. The number of people with obesity is increasing worldwide. Obesity is the primary cause of various diseases; therefore, it is crucial to make efforts to control body weight. Identifying the factors that influence men with obesity to attempt to control and not control their weight is essential. The objective of this study was to create a prediction model for weight control experience among Korean men in their 30 s and 40 s. We analyzed data from the 2022 Community Health Survey and included 12,311 men who were overweight or obese. The men were divided into two groups based on their weight control experience: (1) Yes group (n = 9405) and (2) No group (n = 2906). Chi-square and independent t-tests were used to compare general and health-related characteristics between the groups. Decision tree analysis was used to build a prediction model for weight control experience. A split-sample test was conducted to validate the model. From the results of this study, various models predicting weight control experience were derived. From the decision tree model without setting the first node, those who weighed below average, had a high school diploma or less, and did not know their blood sugar levels had the highest probability of not controlling their weight at 55.3%. In the prediction model where the first node was set to age, those in their 40 s who thought their weight was below average and were unaware of their blood sugar levels had the highest rate of not trying to control their weight at 50.1%. In the prediction model where the first node was set to BMI, those who were overweight but thought their weight was below average and had a high school diploma or less had the highest rate of not trying to control their weight at 51.5%. There is an urgent need to provide obesity prevention and management education to those who have no weight control experience, particularly those at high risk, as identified in this study.

Abstract Background Unhealthy weight control behaviors (UWCBs) involve weight control strategies to reduce or maintain weight, such as fasting, taking diet pills, and vomiting or taking laxatives. UWCBs in teenagers can escalate into severe health issues such as eating disorders. Understanding the trends of UWCBs and their association with risk behaviors in teenagers is crucial, as early intervention and prevention strategies are pivotal. Methods This study utilized eight waves of the youth risk behavior surveillance system (YRBSS) data from 1999 to 2013. Our primary outcome was UWCBs engagement. We used multinomial logistic models to analyze the association between UWCBs and risk behaviors among adolescents including driving after alcohol consumption, suicide attempts, smoking, alcohol use, and sexual intercourse. Results Among 109,023 participants, UWCBs prevalence was 16.64%. Body Mass Index (BMI) was significantly associated with UWCBs risk. In addition, we found the intention of weight management confounded the relationship between BMI and UWCBs. The unadjusted logistic regression indicated a monotone-increasing association between BMI and the risk of UWCBs. In contrast, the adjusted logistic regression indicated a U-shaped curve with the lowest (BMI 30 kg/m2) BMI groups having significantly higher odds of engaging in UWCBs compared to the reference BMI group (18.5 ≤ BMI ≤ 24.9 kg/m2). Conclusions The intention of weight management confounded the relationship between Body Mass Index (BMI) and the risk of UWCBs. These findings suggest that healthcare interventions for weight management behaviors should be tailored to adolescents with BMI ≥ 25 and BMI

ObjectiveWeight-control compensatory behaviors appear to be a commonly utilized strategy for health management. Individuals engaging in such behaviors believe that the negative consequences from unhealthy behaviors will be neutralized by the positive consequences of healthy behaviors. Existing research has not reached a consensus on whether such behaviors are beneficial to health. This review aims to (1) summarize the patterns of weight-control compensatory health behaviors in different populations, (2) highlight correlates, predictors, and consequences of compensatory health behaviors, and (3) identify gaps for future research.MethodThis review identified existing literature using online databases, CINAHL and PubMed. Primary research articles published after 2000 with non-clinical participants of 12 years or older who engaged in compensatory behaviors for weight control purposes were selected. Descriptive statistics were extracted from 35 studies.ResultsDifferent patterns for weight-control compensatory behaviors emerged between the female and male sexes. Meanwhile, no clear association of such behaviors was found across weight status. Studies reviewed also highlighted three main areas of compensatory behaviors for weight management, namely dietary behaviors, physical activity, and alcohol consumption. Weight-control compensatory behaviors had significant negative correlations with mental health indicators, such as psychosocial functioning, emotional differentiation ability, and body esteem.ConclusionWeight-control compensatory behaviors may be a widely used weight management strategy and can be presented in diverse ways. Although believed to be promoting health, such behaviors appear to be associated with poor psychological well-being. This emerging topic warrants more in-depth investigation to establish the direction of causation. Future research may investigate the relationship between weight-control compensatory behaviors and various aspects of health over longer time periods, examine the engagement of multiple weight-control compensatory behaviors, and focus on high-risk populations.

AbstractAdolescence, especially for females, is a period of ongoing risk behavior that triggers the development of adverse health outcomes during adulthood. This study aimed to investigate the weight control practice and its associated factors among high school female-adolescents in Hawassa town, Ethiopia. A school-based mixed cross-sectional study was conducted on 552 female-adolescents in Hawassa town, between December 2020 and January 2021. SPSS version 26 was used to perform bivariable and multivariable regression. Chi-square and Odds ratio were used to see the association in addition to Descriptive statistics of the data collected using a structured and semi-structured mixed questionnaire. BMI was calculated after taking the weight and height using a digital weight scale and stadiometer respectively of adolescent female participants. The focus group discussion was collected using an open-ended questionnaire. Among the total female-adolescents, 38.6% [95% CI = 34.5–42.8%] had experienced any of the weight control practices. The study also revealed that 25.9%, 20.5% and 7.8% of female-adolescents had experienced unhealthy, healthy and both weight control practices respectively. The multivariate regression analysis revealed that being at late adolescent age [AOR = 1.98; 95% CI = 1.33–2.95], living in a household at middle wealth status [AOR = 2.72; 95% CI = 1.60–4.63] and high wealth status [AOR = 5.69; 95% CI = 3.43–9.46], having a normal BMI [AOR = 2.36; 95% CI = 1.18–4.71] and being an overweight adolescent [AOR = 2.45; 95% CI = 1.13–5.28], having a mild depression [AOR = 1.72; 95% CI = 1.12–2.66], being dissatisfied with own mid-torso body image [AOR = 2.68; 95% CI = 1.52–4.73] were associated with exercising weight control practice. This study indicates that nearly forty percent of female-adolescents exercise weight control behaviors, of which a significant proportion of them were involved in unhealthy weight control behaviors. Factors that were associated with weight control behaviors among female adolescents should be also considered in designing healthy weight control interventions in urban settings of Ethiopia.

Abstract Background Previous research has established the importance of moderate‐to‐vigorous physical activity (MVPA) for weight control. One area of unexplored investigation is the relationship between individuals' perceptions of the importance of MVPA for weight control and MVPA engagement. This study examined the associations between the perceived importance of MVPA and MVPA engagement, weight loss, barriers to PA, and exercise enjoyment in adults enrolled in a long‐term behavioral weight loss (BWL) intervention. Methods Adults (N = 301) with overweight/obesity (BMI = 27–45 kg/m2) completed an 18‐month BWL intervention, followed by a no‐intervention 18‐month follow‐up. At baseline, 6 months, 18 months (i.e., post‐treatment), and 36 months (i.e., follow‐up), participants ranked the importance of six strategies for weight control: keeping a food record, MVPA, light PA, self‐weighing, small portions, and low‐calorie diet. Observed MVPA (measured by accelerometer), percent weight loss, perceived barriers to PA, and exercise enjoyment were also measured at each assessment. Results Results showed that most participants perceived MVPA as a primary weight control strategy (first, second, or third most important) throughout the intervention, regardless of the weight control goal (weight loss vs. maintenance). Individuals who ranked MVPA as a primary strategy for weight control at concurrent time points, compared to those who did not, engaged in significantly more MVPA at post‐treatment, had greater weight loss at follow‐up, endorsed fewer barriers to PA at post‐treatment and follow‐up, and reported greater exercise enjoyment at baseline and post‐treatment. Conclusion Perceived importance of MVPA was related to subjective experiences of MVPA, MVPA adherence, and weight loss in a long‐term BWL intervention.

This article proposes an event-triggered resilient control algorithm for cigarette weight control systems to defend against denial of service attacks (DoS) attacks and false data injection (FDI) attacks. First, the mathematical model of the system is derived by considering its physical and electromagnetic characteristics. Then, an attack detection mechanism is designed to identify potential FDI attacks. A predictive compensation algorithm is also developed to mitigate the influence of these attacks, incorporating an observer to estimate unknown compensation signals. Due to limited network resources, we employ an event-based model-free adaptive control (MFAC) framework, where data is transmitted only when specific conditions are violated. Throughout the entire control process, only the input and output data of the system are used. Finally, simulation comparisons are provided to demonstrate the effectiveness and superiority of our method.

Abstract Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder exacerbated by obesity. Single Anastomosis Sleeve-Ileal Bypass (SASI) has emerged as a promising metabolic bariatric procedure that combines sleeve gastrectomy and ileal bypass, facilitating substantial weight loss and T2DM remission through restrictive and malabsorptive mechanisms. This study aims to evaluate the effects of SASI on T2DM remission, weight loss, and safety in one year follow-up. A retrospective cohort study analyzed 31 patients with obesity and T2DM who underwent SASI. Data collected included demographic characteristics, preoperative and postoperative BMI, HbA1c levels, and bariatric outcomes, including %TWL and T2DM changes. The mean age was 45 years, with a mean preoperative BMI of 40.7 kg/m². One year postoperatively, the mean %EWL was 85.6% and %TWL was 31.7%. T2DM remission was achieved in 24 (77.4%) patients, improvement in 4 (12.9%), and no change in 3 (9.7%). Hypertension improved in 21 (87.5%) patients, with 12 (50%) achieving remission. Significant reductions in BMI and HbA1c levels were observed (p

The methods for controlling weight play a central role in formally diagnosed eating disorders (EDs) and appear to be important in the context of other nonformally recognized disorders, such as orthorexia nervosa (ON). These methods also have an impact on eating behaviors, including dietary variety. Our study aimed to: (i) assess the intensity of ON tendency by sex and BMI groups, (ii) evaluate the associations between ON tendency, weight control methods, and dietary variety, and (iii) determine the extent to which weight control methods and dietary variety contribute to the ON tendency among both females and males. Data were gathered from a sample of 936 Polish adults (463 females and 473 males) through a cross-sectional quantitative study conducted in 2019. Participants were requested to complete the ORTO-6, the Weight Control Methods Scale, and the Food Intake Variety Questionnaire (FIVeQ). Multiple linear regression analysis was employed to evaluate associations between ON tendency, weight control methods, and dietary variety. Females exhibited a higher ON tendency than males (14.4 ± 3.4 vs. 13.5 ± 3.7, p

Abstract Background Misperceptions about obesity is common among adolescents. Adolescents who overestimate their body size tend to indulge in extreme weight control behaviors. However, little is known about the factors involved in the adoption of extreme weight control behavior (EWCB) by non-obese adolescents who are mistaken for being overweight. This study identified factors associated with unhealthy behaviors among normal/underweight high school students who overestimate their body image and attempt to lose weight. Design A secondary analysis of nationally representative data from the Korea Youth Risk Behavior Survey focused on adolescents who attended vocational and academically oriented high schools. Methods The analysis included data from 4,286 non-obese respondents (15–18 years) who overestimated their body weight. Of them, 2,887 were girls (66.5%), while 1,399 were boys (33.5%). Multiple logistic regression was used to investigate risk factors for EWCB by sex. A statistical analysis reflecting strata, clusters, and weights of the complex sampling design was adopted. Results Of the respondents, 674 (23.3%) girls and 162 (11.5%) boys reported EWCB. For both sexes, vocational high school attendance and depression were significantly influenced by EWCB. EWCB was linked to perceived stress in girls and living in a big city in boys. Conclusions The findings suggest the importance of providing quality health education, including that for non-obese adolescents, in school obesity prevention programs along with the expansion of tailored intervention programs based on sex, following a consideration of the characteristics of high schools as well as individuals.

Objectives There is evidence that general practitioners (GPs) can increase the uptake of weight management programmes that enhance weight loss compared with self-directed efforts, but the rate at which they do so is unclear. This study examined the prevalence of weight control efforts and practices, the reported frequency and impact of receipt of GP advice on weight loss attempts and perceptions of the appropriateness of health professionals delivering weight loss advice.Design A nationally representative cross-sectional survey.Setting England.Participants 1722 adults (≥16 years) surveyed in October 2018 (mean (SD) age=47.4 (19.2), 51.1% women).Main outcome measures Weight control efforts and practices, whether a GP gave advice or a specific referral/prescription medication, perception of the appropriateness of GP weight loss advice.Results Two-thirds (64.7% (95% CI 58.1% to 71.3%)) of people with obesity reported trying to lose weight. Of people with obesity who visited their GP in the past year, 40% (95% CI 32.2% to 47.7%) recalled receiving any advice on weight loss: 30.8% (95% CI 23.5% to 38.2%) general advice and 9.2% (95% CI 4.6% to 13.7%) a referral to a weight loss service or prescription medication for weight loss. Having received weight loss advice from a GP was strongly associated with a greater likelihood of trying to lose weight (general advice: ORadj=4.49, 95% CI 2.52 to 8.00; referral/medication: ORadj=9.25, 95% CI 2.65 to 32.3). Views on whether health professionals should deliver weight loss advice were mixed, with a substantial minority (19.4% (95% CI 17.5% to 21.4%)) finding it unacceptable. People with a BMI outside of the healthy weight range (underweight/overweight/obesity), women and those from more disadvantaged social grades were less likely to find it acceptable.Conclusions Most people with obesity reported trying to lose weight but less than half recalled receiving advice on weight loss from their GP in the past year and few were referred to community weight-loss programmes. Those who recalled receiving GP advice on weight loss were substantially more likely to report taking action to lose weight. One in five people thought GP advice on weight loss was inappropriate.

Childhood-onset craniopharyngiomas, though rare, are intracranial malformations that can cause obesity by disrupting the hypothalamus, a condition that often persists even after tumor resection. This severe obesity increases the risk of diabetes and fatty liver disease in childhood. Concurrently, panhypopituitarism, including growth hormone (GH) deficiency, may develop. Notably, some individuals with GH deficiency may exhibit a normal growth rate, making GH therapy unnecessary for growth purposes. However, in these cases, GH therapy may still be beneficial in preventing the progression of nonalcoholic fatty liver disease or nonalcoholic steatohepatitis. Although weight management is traditionally considered the gold standard for preventing liver cirrhosis, its effectiveness can be limited by hypothalamic dysfunction and the difficulty of achieving successful weight control. Our case study highlights a patient with normal growth despite GH deficiency, who did not receive GH replacement therapy and continued to struggle with hypothalamic obesity. Despite effective body weight control, the patient developed hepatopulmonary syndrome, indicating that relying solely on weight management may not be sufficient to prevent liver complications. This case underscores the importance of addressing GH deficiency even when growth is normal. Our findings suggest that GH replacement therapy could be beneficial for preventing liver cirrhosis in such cases.

Mudi H Alharbi Clinical Nutrition Department, College of Applied Medical Sciences, Taibah University, Madinah, 42353, Saudi ArabiaCorrespondence: Mudi H Alharbi, Email mhjharbi@taibahu.edu.saBackground: There are a few studies on the association between macronutrients and mood, but none on weight control based on self-perception of specific macronutrients and mood.Objective: To assess the association between anxiety and depression levels and weight-control attempts among young females based on self-perception of diet that impacts weight by limiting or boosting a certain macronutrient.Methods: A cross-sectional survey conducted on young females (n=302) with an age range of 19 to 29. Dietary intake was measured using the Food frequency questionnaire (FFQ) and 24h-dietary recall. Anxiety and depression were measured using the Hospital Anxiety and Depression Scale (HADS) questionnaire.Results: Analysis of the data showed a significant and inverse association of macronutrients – carbohydrates (OR 0.86; 95% CI 0.77– 0.95; p < 0.01), protein (OR 0.87; 95% CI 0.78– 0.97; p

This study aimed to estimate associations between weight control status (trying to lose, gain or maintain weight) and lifestyle behaviors (moderate-to-vigorous physical activity (MVPA), screen time, and the consumption of breakfast, fast food, fruits and vegetables, and sugar-sweetened beverages (SSB)) in adolescents.Data from 919 adolescents in the MATCH study, in New Brunswick, Canada, who self-reported their weight control status at least once within 24 data collection cycles over 8 years (from 2011 to 2019) and from 812 who provided data at least once over the 7 cycles on eating behaviors were used. Generalized estimating equations were used.At the first cycle, mean age was 11.3 (SD = 1.2) years old and 56% were girls. Trying to gain (β = 0.47, CI = [0.15, 0.79]) and maintain weight (β = 0.35, CI = [0.12, 0.57]) were positively associated with MVPA. Trying to lose weight was negatively associated with breakfast (IRR = 0.90, CI = [0.85, 0.94]) and positively associated with screen time (β = 0.62, CI = [0.15, 1.10]), fruit and vegetable (IRR = 1.12, CI = [1.01, 1.25]) and SSB (IRR = 1.42, CI = [1.10, 1.84]). Changes from one weight control status to trying to lose weight were associated with increases in fast food consumption (β = 0.49, CI = [0.15, 0.84]).Weight control status was associated with healthy and unhealthy behaviors in adolescents. Trying to gain or maintain weight was generally associated with more favorable health-related behaviors. Education on healthy weight management behaviors is needed to improve adolescents’ health.

Background: Adolescent girls are concerned about their weight, physical appearance, and how society perceives them. The identities they seek and create in this phase influence society and their peers. In this process, a lot of Emotional, Biological, and Social problems are faced by them. One such problem is Menstrual disorders. Keeping this rationale in mind, the above study was undertaken to Assess Body weight perception, Weight control practices, and their association with Menstruation among Adolescent girls. Objective: 1. To assess Body weight perception and Weight Control Practices, among Adolescent girls 2. To compare Body weight perception and Weight control practices among Adolescent girls with normal and abnormal Menstrual cycles Methodology: A Cross-sectional study was conducted among Adolescent girls residing in the rural field practice area of Bangalore Medical College and Research Institute, Bengaluru. A Sample size of 192 was determined based on a previous study done by Bhurtun DD et al, and Simple random sampling was used for participant recruitment. Data collection utilized a pre-tested structured questionnaire. Data analyzed using SPSS 21.0 Results: Among the 192 participants, based on Body mass index (BMI), 13(6.7%) were Overweight and the rest of the participants 135(70.3%) were of Normal weight. Out of 118(61.5%) respondents reported trying to lose weight, reducing fat intake 100(84.7%) was the most common method. The majority of the Adolescent girls had a positive perception of weight control but had problems accepting their body image as healthy. Body weight perception and Weight control practices affected normal menstrual cycles as well as girls with Menstrual disorders. Conclusion: The findings revealed Body weight perception affected the girls with Normal Menstruation as well as with Menstrual disorders. Therefore, Adolescent girls need to be educated on the need for a Healthy body image as well as a Healthy lifestyle.

Abstract Background Body image concerns are prevalent and are viewed as risk factors for engaging in unhealthy weight control behaviors (UWCBs), such as purging, fasting, and the misuse of laxatives and diet pills. Studies have also linked UWCBs to the development of eating disorders. In the United States (U.S.), sexual minority men (e.g., bisexual, gay, and men who have sex with men) are prone to UWCBs often as a result of societal pressures to achieve certain standards of appearance – of which are often perpetuated through various media platforms. A growing number of studies have explored the possible role mobile dating applications (“dating apps”) play in contributing to UWCBs. To our knowledge, such studies have not explored this possible relationship between dating apps and UWCBs in sexual minority men (SMM). To fill this gap in the scientific literature, the present study assessed the association between dating app use and UWCBs and muscle enhancing behaviors among a sample of adult SMM in the U.S. Method 549 SMM participated in an anonymous survey from Qualtrics Survey Panels. UWCBs and muscle enhancing behaviors were assessed through items adapted from national surveys. Body image dissatisfaction was assessed using the Male Body Attitudes Scales. Participants also reported their history of dating app use. We performed descriptive statistics, chi-square tests, and student’s t-tests. Multivariable logistic regression models assessed the relationship between dating app use and UWCBs and muscle enhancing behaviors. Results Dating app users had significantly higher body image dissatisfaction scores than non-users. Dating app users also demonstrated significantly elevated odds of engaging in four UWCBs and muscle enhancing behaviors: laxatives, diet pills, muscle-building supplements, and protein powders. Conclusions This is one of the first studies to assess dating app use and its association with UWCBs and muscle enhancing behaviors in SMM. Increased surveillance and detection for such behaviors among SMM, particularly those using dating apps, are needed.

Abstract Background The structural diversity of extracellular polymeric substances produced by microorganisms is attracting particular attention. Poly-gamma-glutamic acid (γ-PGA) is a widely studied extracellular polymeric substance from Bacillus species. The function of γ-PGA varies with its molecular weight (Mw). Results Herein, different endogenous promoters in Bacillus licheniformis were selected to regulate the expression levels of pgdS, resulting in the formation of γ-PGA with Mw values ranging from 1.61 × 103 to 2.03 × 104 kDa. The yields of γ-PGA and exopolysaccharides (EPS) both increased in the pgdS engineered strain with the lowest Mw and viscosity, in which the EPS content was almost tenfold higher than that of the wild-type strain. Subsequently, the compositions of EPS from the pgdS engineered strain also changed. Metabolomics and RT-qPCR further revealed that improving the transportation efficiency of EPS and the regulation of carbon flow of monosaccharide synthesis could affect the EPS yield. Conclusions Here, we present a novel insight that increased pgdS expression led to the degradation of γ-PGA Mw and changes in EPS composition, thereby stimulating EPS and γ-PGA production. The results indicated a close relationship between γ-PGA and EPS in B. licheniformis and provided an effective strategy for the controlled synthesis of extracellular polymeric substances.

Background: Due to the dramatic rise in overweight and obesity, adolescent weight management interventions are required. Therefore, this study aimed to study the components and the effect size of weight control programs for adolescents with overweight and obese. Materials and Methods: Following the PRISMA 2020 guidelines, we systematically searched electronic databases (PubMed, Google Scholar, ThaiJo, ThaiLis, and Embase) through December 2021 published in English and Thai, samples aged 15–22 years, and presenting the mean, SD a sample size of both experimental and control groups. However, we excluded articles other than full-text articles. In addition, a risk of bias assessment was performed according to the Cochrane Collaboration's quality assessment tool. Finally, this meta-analysis included six studies that met the criteria. The meta-analysis used a fixed-effects model with a forest plot to compute effect sizes and Cochran's Q and I2 statistics as measures of heterogeneity. Results: We found six primary studies which included 721 overweight adolescents. The analysis of the effectiveness of weight control programs for overweight adolescents revealed that 360 adolescents with overweight and obese (49.93%) who underwent the weight control programs changed body weight and body mass index values with the effect size of -0.80 (-1.03, -0.56) and I2 was 56.00%. Conclusions: The results indicate further studies should focus on constructing programs that consider adolescents' changes in technology and lifestyles. Additionally, social and mobile tools should motivate and educate adolescents about body weight control to help them adapt to a healthy lifestyle and maintain weight control over time.

Abstract Introduction Overweight and obesity are common problems among teenagers regardless of ethnicity, race, and socio-economic status. Therefore, this study aims to explore the social and environmental factors impacting adolescents motivation for weight control in Gilan province, Iran. Methodology Following a qualitative design, a content analysis approach was used to analyze the data. A total of 79 interviews were conducted with Adolescents (n = 23), Friends and Peers (n = 15), Parents (n = 12), Managers (n = 16), and Health care providers (n = 13), regarding adolescents obesity during 2019. MAXQDA V.10 software was used for our analysis. Findings The main categories of environmental and social factors affecting adolescents motivation for weight control were external factors (the relative success of weight control intervention programs, the lack of environmental and social support, and the lack of family support for teenagers) that each one had some subcategories, and internal factors (competence, relatedness, and autonomy). Conclusion This study demonstrated the necessity of identifying environmental and social factors that are effective in reducing adolescents’ motivation for weight loss. These factors are so influential that teenagers can’t overcome them without receiving support from their environment and the government health-related policies. So, it seems that we need integrated multisectoral approaches and we suggest that health policymakers develop practical policies to control adolescents obesity by focusing on factors that have been mentioned in this study.