Proceedings of the Nutrition Society最新文献

{"title":"The potential role of the Mediterranean diet for the treatment and management of polycystic ovary syndrome: a review of the pathophysiological mechanisms and clinical evidence.","authors":"Nicole Scannell, Anthony Villani, Lisa Moran, Evangeline Mantzioris","doi":"10.1017/S0029665124007584","DOIUrl":"10.1017/S0029665124007584","url":null,"abstract":"<p><p>Polycystic ovary syndrome (PCOS) is a common endocrine disorder amongst reproductive-aged women associated with cardiometabolic, reproductive and psychological abnormalities. Lifestyle modification, including a healthy diet, is considered first-line treatment for management of clinical symptoms. However, there is limited high-quality evidence to support one superior therapeutic dietary intervention for PCOS management that is beyond general population-based dietary guidelines. Adherence to a Mediterranean diet (MedDiet) has been shown to decrease cardiometabolic disease risk and attenuate depressive symptoms, particularly in patients with metabolic perturbations. This narrative review summarises the proposed biological mechanisms underpinning the potential therapeutic benefits of a MedDiet for the management of cardiometabolic, reproductive and psychological features related to PCOS. Observational evidence suggests an inverse relationship between MedDiet adherence and PCOS features, particularly insulin resistance and hyperandrogenemia. Although the exact mechanisms are complex and multifaceted, they are likely related to the anti-inflammatory potential of the dietary pattern. These mechanisms are underpinned by anti-inflammatory bioactive constituents present in the MedDiet, including carotenoids, polyphenols and n-3 polyunsaturated fatty acids (PUFAs). Synthesis of the available literature suggests the MedDiet could be a promising therapeutic dietary intervention to attenuate short and long-term symptoms associated with PCOS and may aid in reducing the longer-term risks associated with cardiometabolic diseases and reproductive and psychological dysfunction. Nevertheless, current evidence remains insufficient to inform clinical practice and well-designed clinical trials are needed. As such, we provide recommendations for the design and delivery of future MedDiet interventions in women with PCOS, including exploring the acceptability, and feasibility to enhance adherence.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"176-187"},"PeriodicalIF":7.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142668995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The efficacy and feasibility of lifestyle interventions on modifiable cardiovascular disease risk factors among people with inflammatory bowel disease.","authors":"J M Yap, C L Wall, M Schultz, K Meredith-Jones, H Osborne","doi":"10.1017/S0029665124007596","DOIUrl":"10.1017/S0029665124007596","url":null,"abstract":"<p><p>This review aims to highlight the relative importance of cardiovascular disease (CVD) lifestyle-associated risk factors among individuals with inflammatory bowel disease (IBD) and examine the effectiveness of lifestyle interventions to improve these CVD risk factors. Adults with IBD are at higher risk of CVD due to systemic and gut inflammation. Besides that, tobacco smoking, dyslipidaemia, hypertension, obesity, physical inactivity and poor diet can also increase CVD risk. Typical IBD behavioural modification including food avoidance and reduced physical activity, as well as frequent corticosteroid use, can further increase CVD risk. We reviewed seven studies and found that there is insufficient evidence to conclude the effects of diet and/or physical activity interventions on CVD risk outcomes among populations with IBD. However, the limited findings suggest that people with IBD can adhere to a healthy diet or Mediterranean diet (for which there is most evidence) and safely participate in moderately intense aerobic and resistance training to potentially improve anthropometric risk factors. This review highlights the need for more robust controlled trials with larger sample sizes to assess and confirm the effects of lifestyle interventions to mitigate modifiable CVD risk factors among the IBD population.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"168-175"},"PeriodicalIF":7.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142953984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plant-based diets and health outcomes in Australia and New Zealand.","authors":"James P Goode, Laura E Marchese, Kylie J Smith","doi":"10.1017/S0029665125001685","DOIUrl":"10.1017/S0029665125001685","url":null,"abstract":"<p><p>There is mounting interest in the dual health and environmental benefits of plant-based diets. Such diets prioritise whole foods of plant origin and moderate (though occasionally exclude) animal-sourced foods. However, the evidence base on plant-based diets and health outcomes in Australasia is limited and diverse, making it unsuitable for systematic review. This review aimed to assess the current state of play, identify research gaps and suggest good practice recommendations. The consulted evidence base included key studies on plant-based diets and cardiometabolic health or mortality outcomes in Australian and New Zealand adults. Most studies were observational, conducted in Australia, published within the last decade, and relied on a single dietary assessment about 10-30 years ago. Plant-based diets were often examined using categories of vegetarianism, intake of plant or animal protein, or dietary indices. Health outcomes included mortality, type 2 diabetes and insulin resistance, obesity, CVD and metabolic syndrome. While Australia has an emerging and generally favourable evidence base on plant-based diets and health outcomes, New Zealand's evidence base is still nascent. The lack of similar studies hinders the ability to judge the overall certainty of evidence, which could otherwise inform public health policies and strategies without relying on international studies with unconfirmed applicability. The proportional role of plant- and animal-sourced foods in healthy, sustainable diets in Australasia is an underexplored research area with potentially far-reaching implications, especially concerning nutrient adequacy and the combined health and environmental impacts.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"129-138"},"PeriodicalIF":7.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143764992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The relationship between dietary greenhouse gas emissions and demographic characteristics in high-income countries.","authors":"Eli Kliejunas, Cristina Cleghorn, Jonathan Michael Drew, Cliona Ni Mhurchu, Kathryn E Bradbury","doi":"10.1017/S0029665124007523","DOIUrl":"10.1017/S0029665124007523","url":null,"abstract":"<p><p>The food we eat has a critical impact on human and planetary health. Food systems are responsible for approximately a third of total global greenhouse gas emissions (GHGE). This review summarises studies that have measured dietary GHGE and assessed their associations with various demographic variables. Most studies report dietary emissions at the individual level, but some studies use households as the unit of analysis. Studies investigating individuals estimate dietary intakes using 24-hour dietary recalls, FFQ, diet history interviews, food diaries or other dietary records. Studies investigating households rely on food purchasing data and expenditure surveys. The majority of studies estimate dietary GHGE using process-based life cycle assessments. It is difficult to directly compare emissions estimates between studies at either the individual or household-level due to methodological differences. In general, there are mixed findings with regard to the relationships between various demographic variables and dietary emissions, although older adults generally had higher dietary GHGE than younger adults, and men typically had higher dietary GHGE than women, even when standardising for total energy intake. This review may be useful in informing and targeting policies and interventions to reduce GHGE of dietary intake.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"139-147"},"PeriodicalIF":7.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142669007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A brief history of antenatal colostrum expression, and where to from here.","authors":"Therese A O'Sullivan, Connie N Ihlein","doi":"10.1017/S002966512400483X","DOIUrl":"10.1017/S002966512400483X","url":null,"abstract":"<p><p>The practice of antenatal colostrum expression (ACE), or the extraction of colostrum from the breasts during pregnancy, has an interesting history and continues to evolve. This narrative review aims to describe how perception and practices of ACE have changed over time, summarise the evidence on ACE in maternal and infant care, and highlight areas for future research. The literature demonstrates that ACE is safe for low-risk women when done from around 36 weeks' gestation. Women should be reassured that the skill of hand expressing is a valuable tool post-birth, regardless of whether they are able to collect colostrum antenatally or not. The collection and storage of colostrum in pregnancy can help avoid formula use in hospital, which may have follow on effects immune function and other areas. Ideally, colostrum collected during pregnancy would be kept safely frozen during the hospital stay and only defrosted and used during the stay if medically indicated, with parents supported through that process. Although ACE does not appear to improve long-term breastfeeding rates at present, it can increase confidence around breastfeeding. Further research in more diverse population groups, long-term breastfeeding and long-term health outcomes of using frozen antenatally expressed colostrum for babies (as compared to formula or fresh colostrum) would be valuable to gain a better understanding of the importance of ACE in maternity care.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"188-195"},"PeriodicalIF":7.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142473252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"School food and nutrition environments in the Pacific Islands: opportunities to support healthier diets.","authors":"Sarah Burkhart, Pragya Singh, Danny Hunter, Jessica E Raneri","doi":"10.1017/S0029665125000102","DOIUrl":"10.1017/S0029665125000102","url":null,"abstract":"<p><p>The Pacific Islands region is home to a diversity of countries and territories, who are at the forefront of climate change and the triple burden of malnutrition. In recent years there has been increasing interest in schools as a setting for transforming food systems, improving nutrition and health outcomes, increasing educational outcomes, and enhancing livelihoods in the Pacific Islands. This review examines and describes current school food and nutrition initiatives within the literature that aim to promote healthier, sustainable diets within the Pacific Islands region. As there is a paucity of literature in this area of interest in the Pacific Islands, the review focuses on the policy landscape, the provision of food near, and in schools, nutrition education, and future opportunities. The available literature demonstrates that there is broad regional interest and momentum from numerous stakeholders to enhance SFNE in the Pacific Islands, with several opportunities for future activities. While there are frameworks to explore food environments available there is a need for a Pacific Islands school food environment conceptual framework that captures aspects, both within and around schools, that can guide research and assessment for robust comparable data collection. This may in turn support healthier SFNE and ultimately nutritious food choices for children and adolescents.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"148-154"},"PeriodicalIF":7.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143414114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conference on 'nutrition and wellbeing in Oceania'.","authors":"Katherine M Livingstone, Claire Smith, Jessica R Biesiekierski, Pamela von Hurst, Michelle Gibbs, Victoria M Flood, Sally MacKay","doi":"10.1017/S0029665124004919","DOIUrl":"10.1017/S0029665124004919","url":null,"abstract":"<p><p>Oceania is currently facing a substantial challenge: to provide sustainable and ethical food systems that support nutrition and health across land and water. The Nutrition Society of Australia and the Nutrition Society of New Zealand held a joint 2023 Annual Scientific Meeting on 'Nutrition and Wellbeing in Oceania' attended by 408 delegates. This was a timely conference focussing on nutrition challenges across the Pacific, emphasising the importance of nutrition across land and water, education settings, women's health and gut health. Cutting-edge, multi-disciplinary and collaborative research was presented in a 4-day programme of keynote presentations, workshops, oral and poster sessions, breakfast and lunch symposiums and early career researcher sessions. The conference highlighted the importance of collaboration between nations to address the challenge facing nutrition and wellbeing across Oceania. A systems approach of collaboration among scientists, industry and government is vital for finding solutions to this challenge.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"125-128"},"PeriodicalIF":7.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142473253","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Complex, contradictory and confusing: exploring consumer dilemmas in navigating sustainable healthy nutrition knowledge.","authors":"Bríd C Bourke, Sinéad N McCarthy, Mary B McCarthy","doi":"10.1017/S0029665125001697","DOIUrl":"10.1017/S0029665125001697","url":null,"abstract":"<p><p>Nations are revising dietary guidelines to include sustainability recommendations in response to climate change concerns. Given low adherence to current guidelines, consumer inertia is a challenge. A proliferation of nutrition information providers and dietary messages contributes to confusion. All this suggests that health professionals will face considerable obstacles in facilitating a population shift towards sustainable and healthy (SuHe) diets. This review explores the role of nutrition science in shaping dietary behaviour and the challenges of shifting the nutrition narrative to encompass both health and sustainability. Societal transformation towards the 'asks' of a SuHe diet will rely on consumer-level transformation of food acquisition, preparation, consumption, storage and disposal behaviours. Acceptance of a higher share of plant-based food and a reduction in animal protein in the diet is likely to provoke disorientations as consumers' previously unexamined beliefs are challenged. The challenges presented by portion size distortion, protein reduction and replacement, and the role of ultra-processed food are discussed here in terms of sources of confusion. The routes to change involve deeper understanding of responses to disorientations through processes of belief formation and transformation, which are the foundations of subjective knowledge and attitudes, likely mediated through affective factors. In tandem with introducing new potentially disorienting-to-consumers information, health professionals need to consider the environments where this information is presenting and consider how these environments are designed to support action. In doing so, reactance and backlash through belief rejection and behavioural non-adherence could be reduced.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"1-12"},"PeriodicalIF":7.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143796043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding and applying food systems approaches to improve dietary health.","authors":"Maria Bryant, Wendy Burton, Sundus Mahdi, Nicola Nixon, Sam J Buckton, Rob Oxley, Giorgia Prevadoli, Maddy Power, Philip Garnett","doi":"10.1017/S0029665125001661","DOIUrl":"10.1017/S0029665125001661","url":null,"abstract":"<p><p>Systems thinking is deeply rooted in history, as far back as Aristotle. However, it has only relatively recently reemerged as an approach to help us understand and intervene in health and food systems. This is particularly salient, given its impact on environmental and population health. Whilst global food is abundant, many people cannot access affordable, healthy and culturally appropriate food. On the other hand, foods of low nutrient density are widely available. Food systems are complex and require complex thinking and approaches that allow us to consider the influence of multiple factors and how the might system respond to change. In turn, this enables the identification of 'leverage' points, where policies or interventions are most likely to have a sustained impact. The Foresight obesity map inspired others to adopt systems approaches to help understand the broader social, economic and environmental determinants of obesity to support intervention/policy development. Evaluation of these requires a consideration of complexity to explore why intervention goals may or may not have been successful and how relationships between components or approaches can be enhanced to support implementation and thereby increase the potential for effectiveness. Overall, approaches to understand, intervene, govern and evaluate food systems must themselves be sufficiently complex, or will ultimately be destroyed by the system it seeks to improve. This review paper aims to introduce readers to the application of systems approaches in research within the context of food systems and health, including its traditional/historical origins.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"1-9"},"PeriodicalIF":7.6,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143764996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of intermittent energy restriction on women's health.","authors":"Michelle Harvie, Mai Haiba","doi":"10.1017/S0029665125000059","DOIUrl":"10.1017/S0029665125000059","url":null,"abstract":"<p><p>Intermittent energy-restricted diets are used amongst women with overweight and obesity and a healthy weight. For those with overweight and obesity weight control is typically achieved through daily energy restriction (DER) which has reduced adherence and attenuated metabolic benefits over time. Several intermittent energy restriction (IER) regimens have been developed aiming to promote maintained weight loss and additional weight independent metabolic benefits including the 5:2 diet, alternate day fasting (ADF) and time-restricted eating (TRE). This review summarises the potential benefits or harms of these regimens for managing women’s health. 5:2 and ADF diets have equivalent long term (≥ 6-month) adherence, weight loss and metabolic benefits to DER. Current limited evidence suggests IER is a safe weight loss intervention for women which does not affect reproductive or bone health, increase eating disorders or disturb sleep. Adherence and weight loss with both IER and DER are lower amongst younger women compared to older women and men. Weight loss with ADF and TRE has, respectively, improved symptoms of polycystic ovarian syndrome and premenstrual syndrome, but there is no evidence of weight-independent effects of IER on these conditions. There is little evidence of the benefits and/or harms of IER amongst healthy weight women in whom there is a greater potential for adverse effects on reproductive and bone health, fat free mass, eating disorders and sleep. Further research benefits of IER for weight control and metabolic health as well as harms are required.</p>","PeriodicalId":20751,"journal":{"name":"Proceedings of the Nutrition Society","volume":" ","pages":"1-10"},"PeriodicalIF":7.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7617461/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143391568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}