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1.
Annu Rev Public Health ; 45(1): 253-275, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38772624

RESUMO

The future of plant-based diets is a complex public health issue inextricably linked to planetary health. Shifting the world's population to consume nutrient-rich, plant-based diets is among the most impactful strategies to transition to sustainable food systems to feed 10 billion people by 2050. This review summarizes how international expert bodies define sustainable diets and food systems and describes types of sustainable dietary patterns. It also explores how the type and proportion of plant- versus animal-source foods and alternative proteins relate to sustainable diets to reduce diet-related morbidity and mortality. Thereafter, we synthesize evidence for current challenges and actions needed to achieve plant-based sustainable dietary patterns using a conceptual framework with principles to promote human health, ecological health, social equity, and economic prosperity. We recommend strategies for governments, businesses, and civil society to encourage marketplace choices that lead to plant-rich sustainable diets within healthy, equitable, and resilient agroecological food systems.


Assuntos
Dieta Vegetariana , Abastecimento de Alimentos , Humanos , Abastecimento de Alimentos/estatística & dados numéricos , Dieta Vegetariana/estatística & dados numéricos , Dieta Saudável , Desenvolvimento Sustentável , Dieta Baseada em Plantas
2.
Horm Res Paediatr ; 97(1): 11-21, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37054683

RESUMO

Current clinical guidelines provide information about the diagnostic workup of children with growth failure. This mini-review focuses on the nutritional assessment, which has received relatively little attention in such guidelines. The past medical history, in particular a low birth size and early feeding problems, can provide information that can increase the likelihood of nutritional deficits or several genetic causes. The current medical history should include a dietary history and can thereby reveal a poorly planned or severely restricted diet, which can be associated with nutritional deficiencies. Children on a vegan diet should receive various nutritional supplements, but insufficient compliance has been reported in one-third of cases. While proper use of nutritional supplements in children consuming a vegan diet appears to be associated with normal growth and development, insufficient intake of supplements may impede growth and bone formation. Physical examination and analysis of height and weight over time can help differentiating between endocrine causes, gastrointestinal disorders, psychosocial problems, or underlying genetic conditions that prevent adequate nutritional intake. Laboratory screening should be part of the workup in every child with short stature, and further laboratory tests can be indicated if warranted by the dietary history, especially in children on a poorly planned vegan diet.


Assuntos
Desnutrição , Estado Nutricional , Criança , Humanos , Dieta Vegetariana , Dieta Vegana , Suplementos Nutricionais , Insuficiência de Crescimento/diagnóstico
4.
Nutrients ; 15(6)2023 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-36986117

RESUMO

Plant-based diets, both vegan and vegetarian, which emphasize grains, vegetables, fruits, legumes, nuts, and seeds are increasingly popular for health as well as financial, ethical, and religious reasons. The medical literature clearly demonstrates that whole food plant-based diets can be both nutritionally sufficient and medically beneficial. However, any person on an intentionally restrictive, but poorly-designed diet may predispose themselves to clinically-relevant nutritional deficiencies. For persons on a poorly-designed plant-based diet, deficiencies are possible in both macronutrients (protein, essential fatty acids) and micronutrients (vitamin B12, iron, calcium, zinc, and vitamin D). Practitioner evaluation of symptomatic patients on a plant-based diet requires special consideration of seven key nutrient concerns for plant-based diets. This article translates these concerns into seven practical questions that all practitioners can introduce into their patient assessments and clinical reasoning. Ideally, persons on plant-based diets should be able to answer these seven questions. Each serves as a heuristic prompt for both clinician and patient attentiveness to a complete diet. As such, these seven questions support increased patient nutrition knowledge and practitioner capacity to counsel, refer, and appropriately focus clinical resources.


Assuntos
Dieta Vegetariana , Avaliação Nutricional , Humanos , Dieta , Vitaminas , Dieta Vegana , Verduras
5.
Rev. Nutr. (Online) ; 36: e220227, 2023. tab
Artigo em Inglês | LILACS | ID: biblio-1507420

RESUMO

ABSTRACT Objective To determine the dietary and sociodemographic profile of vegetarian women of childbearing age (18 and 49 years) from the Valle de Aburrá Metropolitan Area in 2021-2022 Methods Through an online survey, 232 vegetarian and vegan women of childbearing age (18 to 49 years) from the Valle de Aburrá Metropolitan Area were surveyed regarding their sociodemographic characteristics, amount of time following this eating pattern and, type and reason for choosing vegetarianism, physical activity, use of nutritional supplements and frequency of consumption of certain food groups. Descriptive analyses, association of variables with the type of vegetarianism and multinomial regression models were performed. Results A total of 232 vegetarian women were surveyed: 60.8% were between 18 and 30 years of age and belonged mainly to the middle class. According to the type of diet, 68.1% used an ovo-lacto-vegetarian diet, 18.1% were vegan, 9.0% lacto-vegetarian and 4.8% ovo-vegetarian. Among the factors evaluated in their potential relationship with the different types of vegetarianism, it is highlighted that vitamin B12 supplementation presents a statistically significant association when using veganism as a comparison category. Conclusion According to the results, among young female adults the vegetarian eating style predominates, without significant differences as to the educational level, adequate levels of physical activity in most of the population; there was a higher prevalence of ovo-lacto-vegetarianism. Vitamin B12 supplementation was significantly higher in the vegan population, indicating that ovo-lacto and ovo-vegetarian populations may be at high risk of vitamin B12 deficiency.


RESUMO Objetivo O estudo objetivou determinar a associação entre o perfil sociodemográfico e alimentar de mulheres vegetarianas em idade fértil (18 a 49 anos) na região metropolitana de Valle de Aburrá (Colômbia) em 2021-2022. Métodos Por meio de um questionário online, 232 mulheres vegetarianas e veganas em idade fértil (18 a 49 anos) pertencentes à região metropolitana de Valle de Aburrá foram entrevistadas sobre suas características sociodemográficas, tempo, tipo e motivo da escolha do vegetarianismo, atividade física, consumo de suplementos nutricionais e frequência de consumo dos grupos dos alimentos. Foi realizada análise descritiva, associação das variáveis com o tipo de vegetarianismo e modelos de regressão multinomial. Resultados Foram entrevistadas 232 mulheres vegetarianas: 60,8% tinham entre 18 e 30 anos e pertencem principalmente à classe social média. De acordo com o tipo de dieta, 68,1% tinham uma dieta ovolactovegetariana; 18,1%, vegana; 9%, lactovegetariana; e 4,8%, ovovegetariana. Entre os fatores avaliados em sua possível relação com os diferentes tipos de vegetarianismo, destaca-se que a suplementação de vitamina B12 apresenta associação estatisticamente significativa ao ter o veganismo como categoria de comparação. Conclusão De acordo com os resultados, entre mulheres adultas jovens, predomina o estilo alimentar vegetariano, sem diferença significativa observada no nível de escolaridade e níveis adequados de atividade física na maioria da população; há também maior prevalência de ovolactovegetarianismo. A suplementação de vitamina B12 é significativamente maior na população vegana, indicando um alto risco de deficiência nas populações ovolacto e ovovegetarianas.


Assuntos
Humanos , Feminino , Adolescente , Adulto , Pessoa de Meia-Idade , Adulto Jovem , Classe Social , Ingestão de Alimentos , Vegetarianos , Dieta Vegetariana/etnologia , Mulheres , Exercício Físico , Inquéritos e Questionários , Colômbia/etnologia , Suplementos Nutricionais , Escolaridade , Dieta Vegana/etnologia
6.
Nutrients ; 14(19)2022 Sep 27.
Artigo em Inglês | MEDLINE | ID: mdl-36235662

RESUMO

The aim was to analyse the total food costs and the impact of food groups on total food costs among vegetarian, vegan and omnivore children and adolescents in Germany. Based on three-day weighed dietary records of 6-18-year-old children and adolescents of the VeChi Youth Study, the total daily food costs and food group costs (both EUR/day, EUR/1000 kcal) of a vegetarian (n = 145 records), vegan (n = 110) and omnivore (n = 135) diet were calculated. Minimum retail prices of 1000 empirically selected foods reported in the dietary records were linked to individual food intakes. The group differences were analysed using ANCOVA or Kruskal-Wallis tests. Vegans had the highest energy adjusted total food costs at 2.98 EUR/1000 kcal, vegetarians the lowest at 2.52 EUR/1000 kcal. Omnivores also had significantly higher costs than vegetarians with 2.83 EUR/1000 kcal/1000 kcal (p = 0.01), but the total costs did not differ significantly between omnivores and vegans (EUR/d and EUR/1000 kcal). Compared to vegetarians, vegans had significantly higher expenditures (EUR/day) on fruit (p = 0.0003), vegetables (p = 0.006), dairy alternatives (p = 0.0003) and legumes/nuts/seeds (p = 0.0003). Expenditure on starchy foods was significantly higher in the vegetarian or vegan than in the omnivore diet (p = 0.0003). Omnivores spent a quarter of their total food costs on animal source foods (25%), which is equivalent to the sum of food costs for legumes/nuts/seeds, dairy alternatives and meat alternatives in vegans and additionally dairy in vegetarians. The VeChi Youth Study indicated that financial constraints are not necessarily a barrier to switching to a more plant-based diet.


Assuntos
Dieta Vegetariana , Veganos , Animais , Estudos Transversais , Dieta , Dieta Vegana , Humanos , Carne , Verduras , Vegetarianos
7.
Front Public Health ; 10: 945805, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36052004

RESUMO

Background: Metabolic syndrome (MetS) encompasses several clinical presentations that include truncal obesity and insulin resistance at its core. MetS afflicts 23% of the adult US population, increasing their risk of diabetes and cardiovascular disease. Many studies have indicated the importance of a vegetarian diet in improving overall health and more specifically MetS components. Unfortunately, these findings have been inconsistent and cannot be extended to examine effects on MetS incidence in the younger adult population. Objective: This study aimed to conduct a retrospective analysis of a vegetarian vs. non-vegetarian dietary status in young adults (age 18-24) based on MetS components in later adulthood (age 20-30). This study focuses on elucidating any relationship between a vegetarian diet and MetS components of central obesity, hypertension, and hyperlipidemia. Methods: Waves 3 and 4 data were acquired from AddHealth. One-to-one propensity score matched vegetarians to non-vegetarians in a cohort of 535 women and 159 men. Logistical regression assessed the relationship between vegetarian status and MetS components, including truncal obesity (cm), hypertension (normal, pre-HT, HT1, and HT2), and hyperlipidemia (high and low). Results MetS components from ages 20 to 30 are not associated with vegetarian dietary status. Truncal obesity [N = 694; M = 92.82 cm; OR 0.999; p = 0.893; 95% CI (0.980, 1.017)]; hypertension [N = 694; OR 0.949; p = 0.638; 95% CI (0.764, 1.179)]; hyperlipidemia [N = 694; OR 0.840; p = 0.581; 95% CI (0.453, 1.559)]. Conclusion: Current study results were consistent with previous findings suggesting that consumption of a vegetarian diet cannot be directly linked to MetS outcomes. However, further investigation should be completed as MetS is a risk factor for several chronic diseases.


Assuntos
Hipertensão , Síndrome Metabólica , Adolescente , Adulto , Dieta Vegetariana , Feminino , Humanos , Hipertensão/epidemiologia , Masculino , Síndrome Metabólica/epidemiologia , Obesidade/epidemiologia , Estudos Retrospectivos , Adulto Jovem
8.
JAAPA ; 35(4): 39-42, 2022 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-35348540

RESUMO

ABSTRACT: Diet is increasingly considered a major contributor to the chronic disease burden in Western societies. Plant-based diets are becoming more mainstream as a way to reduce disease risk and improve quality of life. Clinicians who understand the health benefits and risks associated with various plant-based diets can provide helpful advice to their patients. This article discusses six common beliefs about plant-based diets and reviews guidelines for plant-based eating.


Assuntos
Dieta , Qualidade de Vida , Efeitos Psicossociais da Doença , Dieta Vegetariana , Humanos
9.
Nutrients ; 13(9)2021 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-34578915

RESUMO

Affordability of different isocaloric healthy diets in Germany-an assessment of food prices for seven distinct food patterns Background: For decades, low-fat diets were recommended as the ideal food pattern to prevent obesity, type 2 diabetes and their long-term complications. Nowadays, several alternatives considering sources and quantity of protein, fat and carbohydrates have arisen and clinical evidence supports all of them for at least some metabolic outcomes. Given this variety in diets and the lack of a single ideal diet, one must evaluate if patients at risk, many of which having a lower income, can actually afford these diets. AIM: We modelled four-week food plans for a typical family of two adults and two school children based on seven different dietary patterns: highly processed standard omnivore diet (HPSD), freshly cooked standard omnivore diet (FCSD), both with German average dietary composition, low-protein vegan diet (VeganD), low-fat vegetarian diet (VegetD), low-fat omnivore diet (LFD), Mediterranean diet (MedD) and high-fat moderate-carb diet (MCD). The isocaloric diets were designed with typical menu variation for all meal times. We then assessed the lowest possible prices for all necessary grocery items in 12 different supermarket chains, avoiding organic foods, special offers, advertised exotic super foods and luxury articles. Prices for dietary patterns were compared in total, stratified by meal time and by food groups. RESULTS: Among all seven dietary patterns, price dispersion by supermarket chains was 12-16%. Lowest average costs were calculated for the VegetD and the FCSD, followed by HPSD, LFD, VeganD, MedD and-on top-MCD. VeganD, MedD and MCD were about 16%, 23% and 67% more expensive compared to the FCSD. Major food groups determining prices for all diets are vegetables, salads and animal-derived products. Calculations for social welfare severely underestimate expenses for any kind of diet. CONCLUSIONS: Food prices are a relevant factor for healthy food choices. Food purchasing is financially challenging for persons with very low income in Germany. Fresh-cooked plant-based diets are less pricy than the unhealthy HPSD. Diets with reduced carbohydrate content are considerably more expensive, limiting their use for people with low income. Minimum wage and financial support for long-term unemployed people in Germany are insufficient to assure a healthy lifestyle.


Assuntos
Dieta Saudável/economia , Comportamento Alimentar , Alimentos/economia , Adolescente , Adulto , Criança , Comércio/economia , Comportamento do Consumidor , Custos e Análise de Custo , Dieta Hiperlipídica/economia , Dieta Mediterrânea/economia , Dieta Vegana/economia , Dieta Vegetariana/economia , Feminino , Preferências Alimentares , Alemanha , Humanos , Renda , Masculino , Pessoa de Meia-Idade , Verduras/economia , Adulto Jovem
10.
Artigo em Inglês | MEDLINE | ID: mdl-34501575

RESUMO

Current nutritional trends include plant-based diets as nutritional behavior of consumers who are increasingly concerned about a healthy lifestyle. Sea buckthorn (Hippophaë rhamnoides L.) is a plant with great virtues, containing more than 100 types of compounds. It is a plant with versatile properties, multiple economic advantages and a rich history, which still continues in natural medicine, and it is hence included in the daily diet by more and more people for the prevention and treatment of diet-related diseases. Its uniqueness is due to its chemical composition and the health beneficial properties that rise from its composition. This review is a detailed analytical picture of the current state of knowledge currently available regarding the Hippophaë plant, providing an overview of the qualities of sea buckthorn. This article summarizes data on sea buckthorn's nutritional value, health beneficial properties, and its applications.


Assuntos
Hippophae , Dieta , Dieta Vegetariana , Frutas , Humanos , Valor Nutritivo
11.
J Evid Based Dent Pract ; 21(1): 101524, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-34051953

RESUMO

ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Vegetarian diet and its possible influence on dental health: A systematic literature review. Community Dent Oral Epidemiol. Smits KPJ, Listl S, Jevdjevic M. 2020; 48(1):7-13. SOURCE OF FUNDING: No financial support. TYPE OF STUDY/DESIGN: Systematic review with meta-analysis.


Assuntos
Cárie Dentária , Dieta Vegetariana , Apoio Financeiro , Humanos
13.
Am J Med ; 134(5): 569-575, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33316249

RESUMO

Massive animal farming for meat production poses major problems in terms of resource use, environmental impact, and biodiversity. Furthermore, excessive meat consumption has been associated with multiple deleterious health consequences. However, more and better-designed randomized trials are needed to increase the level of evidence on the health impacts of meat. Novel meat alternatives, such as plant- and cell-based meat, are much less impactful to the environment and might replace traditional animal meat in the future, but, despite promising early data, the health consequences of these novel products need further study. This manuscript focuses on the health impacts of meat over 3 main sections: 1) overview of the evidence highlighting the association of meat consumption with health; 2) novel alternatives to meat, including plant-based and cell-based alternatives; and 3) examine the rationale for randomized studies to evaluate the effects of the novel meat alternatives compared with the standard animal meat.


Assuntos
Carne , Dieta/efeitos adversos , Dieta Vegetariana , Previsões , Humanos , Carne/efeitos adversos , Ensaios Clínicos Controlados Aleatórios como Assunto
15.
Nutrients ; 12(11)2020 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-33238431

RESUMO

A vegetarian diet has been associated with a lower risk of coronary artery disease (CAD). Plasma triacylglycerols, ceramides, and phosphatidylcholines may improve prediction of recurrent coronary events. We sought to investigate effects of a lacto-ovo-vegetarian diet (VD) on plasma lipidome in CAD patients and simultaneously assess associations of plasma lipids with the extent of coronary atherosclerotic burden. We analyzed 214 plasma lipids within glycerolipid, sphingolipid, and sterol lipid classes using lipidomics from a randomized controlled, crossover trial comprising 31 CAD patients on standard medical therapy. Subjects completed a four-week intervention with VD and isocaloric meat diet (MD), separated by a four-week washout period. The VD increased levels of 11 triacylglycerols and lowered 7 triacylglycerols, 21 glycerophospholipids, cholesteryl ester (18:0), and ceramide (d18:1/16:0) compared with MD. VD increased triacylglycerols with long-chain polyunsaturated fatty acyls while decreased triacylglycerols with saturated fatty acyls, phosphatidylcholines, and sphingomyelins than MD. The Sullivan extent score (SES) exhibited on coronary angiograms were inversely associated with triacylglycerols with long-chain unsaturated fatty acyls. Phosphatidylcholines that were lower with VD were positively associated with SES and the total number of stenotic lesions. The VD favorably changed levels of several lipotoxic lipids that have previously been associated with increased risk of coronary events in CAD patients.


Assuntos
Aterosclerose/sangue , Aterosclerose/complicações , Doença da Artéria Coronariana/sangue , Doença da Artéria Coronariana/complicações , Efeitos Psicossociais da Doença , Dieta Vegetariana/métodos , Lipídeos/sangue , Idoso , Biomarcadores , Estudos Cross-Over , Feminino , Humanos , Lipidômica , Masculino , Pessoa de Meia-Idade
16.
J Dairy Sci ; 103(12): 11209-11217, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33222851

RESUMO

This research used a survey of 995 US households to explore how dairy milk and plant-based beverage substitutes were consumed. Long-term trends of declining beverage milk consumption have been exacerbated in recent years by increasing consumption of plant-based beverages. Although beverage milk consumption has been declining, total dairy consumption in the United States continues to increase, driven by growth in sales of cheese, butter, and yogurt. Using k-means cluster analysis, 3 consumption clusters for US households were identified. The largest cluster, consisting of 61.6% of households, consumed dairy milk with some regularity and consumed little or no plant-based beverages. A second cluster, flexitarian households, consisting of 15.6% of respondent households, frequently consumed both dairy milk and plant-based beverages. The third cluster, plant-based consumers, consisting of 22.8% of households, consumed almost exclusively plant-based beverages. Examining differences in demographics between clusters, flexitarian households were larger, more likely to include young children, more likely to include a vegetarian or vegan, and more liberal than traditional dairy-consuming households. Plant-based households had many similarities to flexitarian households. The flexitarian and plant-based clusters were willing to substitute plant-based beverages for dairy milk for almost all consumption uses.


Assuntos
Bebidas , Comportamento do Consumidor , Dieta Vegetariana , Leite , Adulto , Animais , Bebidas/economia , Comércio , Ingestão de Energia , Características da Família , Feminino , Humanos , Masculino , Leite/economia , Inquéritos Nutricionais , Estados Unidos
17.
Nature ; 585(7826): 551-556, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32908312

RESUMO

Increased efforts are required to prevent further losses to terrestrial biodiversity and the ecosystem services that it  provides1,2. Ambitious targets have been proposed, such as reversing the declining trends in biodiversity3; however, just feeding the growing human population will make this a challenge4. Here we use an ensemble of land-use and biodiversity models to assess whether-and how-humanity can reverse the declines in terrestrial biodiversity caused by habitat conversion, which is a major threat to biodiversity5. We show that immediate efforts, consistent with the broader sustainability agenda but of unprecedented ambition and coordination, could enable the provision of food for the growing human population while reversing the global terrestrial biodiversity trends caused by habitat conversion. If we decide to increase the extent of land under conservation management, restore degraded land and generalize landscape-level conservation planning, biodiversity trends from habitat conversion could become positive by the mid-twenty-first century on average across models (confidence interval, 2042-2061), but this was not the case for all models. Food prices could increase and, on average across models, almost half (confidence interval, 34-50%) of the future biodiversity losses could not be avoided. However, additionally tackling the drivers of land-use change could avoid conflict with affordable food provision and reduces the environmental effects of the food-provision system. Through further sustainable intensification and trade, reduced food waste and more plant-based human diets, more than two thirds of future biodiversity losses are avoided and the biodiversity trends from habitat conversion are reversed by 2050 for almost all of the models. Although limiting further loss will remain challenging in several biodiversity-rich regions, and other threats-such as climate change-must be addressed to truly reverse the declines in biodiversity, our results show that ambitious conservation efforts and food system transformation are central to an effective post-2020 biodiversity strategy.


Assuntos
Biodiversidade , Conservação dos Recursos Naturais/métodos , Conservação dos Recursos Naturais/tendências , Política Ambiental/tendências , Atividades Humanas/tendências , Dieta , Dieta Vegetariana/tendências , Abastecimento de Alimentos , Humanos , Desenvolvimento Sustentável/tendências
18.
Nutrients ; 12(7)2020 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-32708996

RESUMO

Poor dietary intake during pregnancy remains a significant public health concern, affecting the health of the mother and fetus. This study examines the adequacy of energy, macronutrient, and micronutrient intakes among self-declared lacto-vegetarian and non-vegetarian pregnant women. We analyzed dietary data from 627 pregnant women in Uttar Pradesh, India, using a multiple-pass 24 h diet recall. Compared to non-vegetarians, lacto-vegetarians (~46%) were less likely to report excessive carbohydrate (78% vs. 63%) and inadequate fat intakes (70% vs. 52%). In unadjusted analyses, lacto-vegetarians had a slightly higher mean PA for micronutrients (20% vs. 17%), but these differences were no longer significant after controlling for caste, education, and other demographic characteristics. In both groups, the median intake of 9 out of 11 micronutrients was below the Estimated Average Requirement. In conclusion, the energy and micronutrient intakes were inadequate, and the macronutrient intakes were imbalanced, regardless of stated dietary preferences. Since diets are poor across the board, a range of policies and interventions that address the household food environment, nutrition counseling, behavior change, and supplementation are needed in order to achieve adequate nutrient intake for pregnant women in this population.


Assuntos
Dieta Vegetariana , Micronutrientes/administração & dosagem , Avaliação Nutricional , Necessidades Nutricionais , Estado Nutricional , Vegetarianos , Adulto , Dieta , Ingestão de Alimentos , Feminino , Humanos , Índia , Valor Nutritivo , Gravidez , Gestantes , Fatores Socioeconômicos , Adulto Jovem
19.
BMJ Open ; 10(6): e036792, 2020 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-32487581

RESUMO

INTRODUCTION: Cardiovascular disease (CVD) is currently the leading cause of death worldwide. In Africa where infectious diseases are still the leading cause of death, the contribution of non-communicable diseases led by CVDs has significantly increased in recent years. The rise of CVDs in Africa is attributed at least in part to the adoption of sedentary behaviours and unhealthy eating habits, which are linked with urbanisation and westernisation of cultures. Dietary attributes associated with CVD risk have been less investigated in Africa. However, evidence from developed nations has reported a protective effect of healthy dietary patterns such as plant-based diets (PBDs) on cardiometabolic health. The current protocol is for a review aiming to assess existing evidence on the association of PBDs with CVD risk profile in African populations. METHODS AND ANALYSIS: This protocol was developed following the 2015 guidelines of the Preferred Reporting Items for Systematic Review and Meta-analysis Protocols. We will conduct a comprehensive search of the literature for published studies on PBDs in relation to CVD risk profile in African populations. Observational studies published between January 1990 and December 2019 will be screened. A search strategy using keywords and medical subject headings terms will be applied across multiple scientific databases including PubMed-Medline, Scopus and EBSCOhost and the African Journals Online platform. Manual searches of reference lists from relevant articles will be performed. Citations will be traced using the ISI Web of Science to further identify eligible studies. Grey literature will also be screened for relevant abstracts from conference proceedings, and experts in the field will be contacted where appropriate. Two investigators will independently screen all the titles and abstracts to determine which records are eligible for full-text review. Subsequently, two investigators will review the eligible full text using the selection criteria. A third investigator will be consulted to resolve any discrepancies. Data will be extracted from studies that are eligible for the review. Meta-analysis will be performed for studies with similar or comparable methods and reported outcome measures. This will be performed overall, and by major study-level characteristics. Heterogeneity in the estimates across studies will be assessed and quantified with the use of Cochrane Q and I2 statistics, respectively. Publication biases will be investigated through funnel plots and Egger test of bias. Relevant sensitivity analyses will be performed to confirm the robustness of the findings. ETHICS AND DISSEMINATION: The review will analyse data from published studies; therefore, it does not require ethical approval. The findings of the review will be submitted as part of a PhD thesis at Stellenbosch University, South Africa. Additionally, the findings will be presented at conferences and published in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER: CRD42020159862.


Assuntos
Doenças Cardiovasculares , Doenças Cardiovasculares/epidemiologia , Dieta Vegetariana , Humanos , Metanálise como Assunto , Projetos de Pesquisa , África do Sul , Revisões Sistemáticas como Assunto
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