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This narrative review synthesizes dietary, behavioral, and lifestyle strategies aimed at supporting long-term weight loss and preventing weight regain. Evidence from studies published between 2015 and 2025 is organized by intervention type and determinants of adherence, highlighting the roles of emotional eating, fatigue, expectations, and social and environmental factors.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/dietary-and-behavioral-strategies-for-weight-loss-and-weight-loss-maintenance-narrative-review/467384/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/dietary-and-behavioral-strategies-for-weight-loss-and-weight-loss-maintenance-narrative-review/467384.png","ImageObject",300,407,{"name":92,"@type":93},"A glass of water","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-04","2026-09-30",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",13,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What is the main purpose of this narrative review?","Question",{"text":113,"@type":114},"To identify and discuss dietary, behavioral, and lifestyle strategies that support long-term weight loss and weight loss maintenance.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"Which study types and time window were included in the review?",{"text":118,"@type":114},"The review included randomized controlled trials, observational studies, systematic and narrative reviews, and meta-analyses from 2015 to 2025, using PubMed, Scopus, and Google Scholar.",{"name":120,"@type":111,"acceptedAnswer":121},"Why do people often regain weight after losing it?",{"text":122,"@type":114},"Long-term weight regain is driven by biological adaptations (e.g., changes in metabolic rate and appetite-related hormones) plus behavioral factors such as return to prior eating habits, limited adherence, emotional eating, dietary fatigue, and unrealistic expectations.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},467384,1790981176,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":145,"read_time":146,"preview_page_count":4},962090760832,"https://ap-avatar.wpscdn.com/davatar_155a257f0dc6eb9ab79c44ca47cae57d","Review  \nDietary and Behavioral Strategies for Weight Loss and Weight Loss Maintenance: A Narrative Review  \nTomasz Z˙urawski * and Anna Bartosiewicz   \nAcademic Editor: Aivaras Ratkevicius  \nReceived: 5 November 2025  \nRevised: 16 December 2025  \nAccepted: 17 December 2025  \nPublished: 19 December 2025  \nCopyright: © 2025 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.  \nDepartment of Dietetics, Faculty of Health Sciences and Psychology, Collegium Medicum, University of Rzeszów, 35-959 Rzeszów, Poland; [abartosiewicz@ur.edu.pl](abartosiewicz@ur.edu.pl)  \n* Correspondence: [tz088246@stud.ur.edu.pl](tz088246@stud.ur.edu.pl)  \nAbstract  \nBackground: Obesity is a multifactorial chronic disease associated with increased risk of metabolic disorders, reduced quality of life, and rising healthcare costs. Although weight reduction is achievable through various dietary approaches, maintaining the achieved results remains a major clinical challenge. This review aims to identify and discuss dietary, behavioral, and lifestyle strategies that support long-term weight loss and weight maintenance. Methods: A narrative literature review was conducted in two stages using PubMed, Scopus, and Google Scholar. The search included peer-reviewed studies published between 2015 and 2025 focusing on individuals with overweight and obesity. Randomized controlled trials, observational studies, systematic and narrative reviews, and meta-analyses discussing short-term and long-term weight loss outcomes and factors influencing the maintenance of reduced body weight were included. Results: Multiple nutritional strategies, including continuous and intermittent energy restriction, very low-calorie diets, and macronutrient modification, can be effective for weight reduction. However, long-term outcomes are primarily dependent on adherence and consistent implementation of recommendations. Behavioral and psychological factors, such as emotional eating, dietary fatigue, and unrealistic expectations, often contribute to weight regain. Social support, personalized dietary strategies, and sustainable lifestyle habits are key determinants of maintaining weight loss. The current evidence base is limited by the scarcity of long-term follow-up studies and high methodological variability across interventions. Conclusions: Long-term weight management requires a comprehensive, individualized approach that integrates dietary strategies with behavioral and lifestyle support. Strengthening adherence and addressing psychological and environmental factors may significantly improve the effectiveness and durability of obesity treatment.  \nKeywords: obesity; weight loss; weight loss maintenance  \n1. Introduction  \nObesity is a complex, multifactorial chronic disease characterized by excessive accumulation of adipose tissue [1] . Its development is the result of a complex interaction of genetic, environmental, socio-economic, and lifestyle factors, including diet and level of physical activity [2,3] . According to data from the World Health Organization (WHO), the number of people affected by obesity continues to increase globally, which makes obesity one of the top public health challenges [4] . It is currently estimated that about 650 million adults and 340 million children and adolescents aged 5–19 years suffer from obesity [5] . Moreover, forecasts from the World Obesity Federation (WOF) indicate that by  \n2035 the percentage of individuals with overweight and obesity may increase to 51% of the global population, resulting in significant economic burdens and major challenges for healthcare systems [6] .  \nThe consequences of obesity are multidimensional and include the risk of developing numerous chronic diseases, such as type 2 diabetes, cardiovascular diseases, and certain cancers, as well as a significant impact on patients’ quality of life","cbCaip81bXwmmlpK","https://ap.wps.com/l/cbCaip81bXwmmlpK","pdf",717113,31,"English","# Introduction\n## Obesity as a multifactorial chronic disease\n## Consequences and public health burden\n## Clinical goals and definitions of success\n## Challenges in achieving and maintaining long-term weight loss\n# Review Methods\n## Search strategy and included study types\n# Results\n## Dietary approaches for weight reduction\n## Behavioral and psychological drivers of weight regain\n## Determinants of long-term maintenance\n# Conclusions","[{\"question\":\"What is the main purpose of this narrative review?\",\"answer\":\"To identify and discuss dietary, behavioral, and lifestyle strategies that support long-term weight loss and weight loss maintenance.\"},{\"question\":\"Which study types and time window were included in the review?\",\"answer\":\"The review included randomized controlled trials, observational studies, systematic and narrative reviews, and meta-analyses from 2015 to 2025, using PubMed, Scopus, and Google Scholar.\"},{\"question\":\"Why do people often regain weight after losing it?\",\"answer\":\"Long-term weight regain is driven by biological adaptations (e.g., changes in metabolic rate and appetite-related hormones) plus behavioral factors such as return to prior eating habits, limited adherence, emotional eating, dietary fatigue, and unrealistic expectations.\"}]","Dietary and Behavioral Strategies for Weight Loss and Weight Loss Maintenance - Narrative Review | PDF",1790772790,78]