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1.
Rev Bras Epidemiol ; 26: e230021, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36921129

RESUMO

OBJETIVO: To describe the initial baseline results of a population-based study, as well as a protocol in order to evaluate the performance of different machine learning algorithms with the objective of predicting the demand for urgent and emergency services in a representative sample of adults from the urban area of Pelotas, Southern Brazil. METHODS: The study is entitled "Emergency department use and Artificial Intelligence in PELOTAS (RS) (EAI PELOTAS)" (https://wp.ufpel.edu.br/eaipelotas/). Between September and December 2021, a baseline was carried out with participants. A follow-up was planned to be conducted after 12 months in order to assess the use of urgent and emergency services in the last year. Afterwards, machine learning algorithms will be tested to predict the use of urgent and emergency services over one year. RESULTS: In total, 5,722 participants answered the survey, mostly females (66.8%), with an average age of 50.3 years. The mean number of household people was 2.6. Most of the sample has white skin color and incomplete elementary school or less. Around 30% of the sample has obesity, 14% diabetes, and 39% hypertension. CONCLUSION: The present paper presented a protocol describing the steps that were and will be taken to produce a model capable of predicting the demand for urgent and emergency services in one year among residents of Pelotas, in Rio Grande do Sul state.


Assuntos
Inteligência Artificial , Obesidade , Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Masculino , Fatores Socioeconômicos , Brasil , Serviço Hospitalar de Emergência
2.
Nutrition ; 106: 111908, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36470114

RESUMO

The aim of this review article was to evaluate the association between the intake of ultra-processed foods and sleep-related outcomes through a systematic review and meta-analysis. Pubmed, LILACS, Scielo, Scopus, Embase, and Web of Science were searched on December 31, 2021, for studies that evaluated the association between ultra-processed foods and sleep-related outcomes (self-reported sleep duration and quality). Pooled odds ratios were assessed through a random-effects model; heterogeneity was evaluated using the I2 statistic. Fifteen cross-sectional studies were included; 14 showed that the high intake of ultra-processed foods was statistically significantly associated with sleep-related outcomes (sleep duration and quality). In the crude analysis, compared with low intake, high intake of ultra-processed foods increased the odds of sleep-related outcomes, with increased odds among children and/or adolescents, and null results among adults. When adjusted for cofounders, we found statistically significant results for all ages. The high intake of ultra-processed foods was associated with sleep-related outcomes, with moderate credibility of the evidence. Longitudinal studies and clinical trials confirming these findings are necessary.


Assuntos
Ingestão de Energia , Alimento Processado , Adulto , Criança , Adolescente , Humanos , Fast Foods/efeitos adversos , Estudos Transversais , Sono , Dieta , Manipulação de Alimentos
3.
Rev. bras. epidemiol ; 26: e230021, 2023. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1423224

RESUMO

RESUMO Objetivo: To describe the initial baseline results of a population-based study, as well as a protocol in order to evaluate the performance of different machine learning algorithms with the objective of predicting the demand for urgent and emergency services in a representative sample of adults from the urban area of Pelotas, Southern Brazil. Methods: The study is entitled "Emergency department use and Artificial Intelligence in PELOTAS (RS) (EAI PELOTAS)" (https://wp.ufpel.edu.br/eaipelotas/). Between September and December 2021, a baseline was carried out with participants. A follow-up was planned to be conducted after 12 months in order to assess the use of urgent and emergency services in the last year. Afterwards, machine learning algorithms will be tested to predict the use of urgent and emergency services over one year. Results: In total, 5,722 participants answered the survey, mostly females (66.8%), with an average age of 50.3 years. The mean number of household people was 2.6. Most of the sample has white skin color and incomplete elementary school or less. Around 30% of the sample has obesity, 14% diabetes, and 39% hypertension. Conclusion: The present paper presented a protocol describing the steps that were and will be taken to produce a model capable of predicting the demand for urgent and emergency services in one year among residents of Pelotas, in Rio Grande do Sul state.


RESUMO Objetivo: Descrever os resultados iniciais da linha de base de um estudo de base populacional, bem como um protocolo para avaliar o desempenho de diferentes algoritmos de aprendizado de máquina, com o objetivo de predizer a demanda de serviços de urgência e emergência em uma amostra representativa de adultos da zona urbana de Pelotas, no Sul do Brasil. Métodos: O estudo intitula-se "Emergency department use and Artificial Intelligence in PELOTAS (RS) (EAI PELOTAS)" (https://wp.ufpel.edu.br/eaipelotas/). Entre setembro e dezembro de 2021, foi realizada uma linha de base com os participantes. Está previsto um acompanhamento após 12 meses para avaliar a utilização de serviços de urgência e emergência no último ano. Em seguida, serão testados algoritmos de machine learning para predizer a utilização de serviços de urgência e emergência no período de um ano. Resultados: No total, 5.722 participantes responderam à pesquisa, a maioria do sexo feminino (66,8%), com idade média de 50,3 anos. O número médio de pessoas no domicílio foi de 2,6. A maioria da amostra tem cor da pele branca e ensino fundamental incompleto ou menos. Cerca de 30% da amostra estava com obesidade, 14% com diabetes e 39% eram hipertensos. Conclusão: O presente trabalho apresentou um protocolo descrevendo as etapas que foram e serão tomadas para a produção de um modelo capaz de prever a demanda por serviços de urgência e emergência em um ano entre moradores de Pelotas, no estado do Rio Grande do Sul.

4.
Nutr Metab Cardiovasc Dis ; 32(5): 1093-1109, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35282984

RESUMO

AIMS: Blueberry and cranberry are rich in polyphenols that are associated with diabetes reduction. This study aimed: 1) to systematically review the literature on the effects of blueberry and cranberry consumption and type 2 diabetes parameters in individuals with or without type 2 diabetes and 2) to quantify these effects by carrying out a meta-analysis. DATA SYNTHESIS: A systematic review and meta-analysis were performed using articles present in seven databases (PubMed, LILACS, Scielo, Scopus, Web of Science, Cochrane, and Embase), including publications until May 2021. We included randomized clinical trials that compared blueberry or cranberry effects on type 2 diabetes parameters, such as fasting blood glucose, insulin resistance, and glycated hemoglobin. Quality of the studies was performed using the Cochrane scale, while the Egger test assessed the publication bias and meta-regression the estimated effect sizes with potential moderator variables. From the 2034 studies identified, 39 were read in full and 22 were included in meta-analysis. In individuals with diabetes, the consumption of blueberry or cranberry significantly reduced fasting blood glucose [MD: -17.72 mg/dl; 95% CI: -29.62, -5.82; p = 0.03; I2 = 57%] and glycated hemoglobin [MD: -0.32%; 95% CI: -0.57, -0.07; p = 0.15; I2 = 39%], whereas for insulin resistance the effects were null. Results were not significant for the general population, except in the sensitivity analysis for fasting blood glucose. CONCLUSIONS: The consumption of blueberry and cranberry significantly reduced fasting blood glucose and glycated hemoglobin levels in individuals with diabetes, with high credibility of the evidence.


Assuntos
Mirtilos Azuis (Planta) , Diabetes Mellitus Tipo 2 , Resistência à Insulina , Vaccinium macrocarpon , Glicemia , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Diabetes Mellitus Tipo 2/epidemiologia , Hemoglobinas Glicadas/análise , Humanos , Extratos Vegetais/efeitos adversos , Ensaios Clínicos Controlados Aleatórios como Assunto
5.
Eur J Clin Nutr ; 76(12): 1636-1645, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-35173292

RESUMO

Omega-3 fatty acids are bioactive nutrients with the potential to preserve lean body mass in individuals with cancer. This study aimed to review the literature on randomized clinical trials that evaluated the effects of omega-3 supplementation on lean body mass in cancer patients. As secondary objectives, we evaluated the effects of omega-3 supplementation on body mass index (BMI) and body weight. We conducted a systematic review and meta-analysis in the following databases: Pubmed, LILACS, Scielo, Scopus, Web of Science, Cochrane, and Embase. It included randomized clinical trials that investigated the effects of omega-3 supplementation on lean body mass in cancer patients. Observational studies, animal experiments, studies carried out with healthy humans, and non-randomized clinical trials were excluded. We utilized the Cochrane scale to assess the quality of the studies. A meta-analysis was carried out to evaluate the effect of omega-3 on lean body mass, BMI, and body weight. Fourteen studies were included, of which four showed significant results from omega-3 supplementation for lean body mass. In the meta-analysis, omega-3 fatty acids increased lean body mass by 0.17 kg compared to placebo, but without significant differences between the groups [SMD: 0.17; CI 95%: -0.01, 0.35; I2 = 41%]. For body weight, omega-3 showed a statistically significant effect [SMD: 0.26; CI 95%: 0.06, 0.45; I2 = 46%], whereas for BMI the results were not significant. This systematic review and meta-analysis showed no statistically significant effect from omega-3 on lean body mass and BMI. On the other hand, there was a statistical significance for body weight.


Assuntos
Ácidos Graxos Ômega-3 , Neoplasias , Humanos , Suplementos Nutricionais , Ácidos Graxos Ômega-3/farmacologia , Composição Corporal , Peso Corporal , Ensaios Clínicos Controlados Aleatórios como Assunto
6.
Clin Nutr ESPEN ; 47: 128-134, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-35063192

RESUMO

BACKGROUND & AIMS: Creatine supplementation shows promising effects on diabetes, especially in glucose management and insulin secretion. This study aimed to review the literature on studies that evaluated the effects of creatine supplementation on parameters of diabetes in humans. METHODS: We conducted a systematic review and meta-analysis, until December 2020, in the following databases: Pubmed, Lilacs, Scielo, Scopus, SPORTDiscus, Web of Science, Embase, and Cochrane. It included experimental studies that investigated the effects of creatine supplementation on diabetes treatment or prevention and its relationship with fasting blood glucose and insulin resistance. RESULTS: Nine studies were included in the review, from which five showed some benefit of creatine supplementation in at least one diabetes parameter. In diabetic individuals (n = 2), creatine was beneficial. In the meta-analysis, there are no significant effect on fasting blood glucose [SMD: 0.05; CI95%: -0.53, 0.63; p = 0.28; I2 = 22%] and insulin resistance [SMD: -0.38; 95% CI: -0.90, 0.14; p = 0.22; I2 = 33%]. CONCLUSION: Our results demonstrated an insufficient basis to state that creatine can positively affect diabetes parameters. Future studies should be conducted with diabetic individuals due to the potential of creatine on diabetes parameters.


Assuntos
Diabetes Mellitus , Resistência à Insulina , Glicemia , Creatina/farmacologia , Creatina/uso terapêutico , Suplementos Nutricionais , Controle Glicêmico , Humanos
7.
Rev. urug. enferm ; 17(1): 1-16, ene. 2022.
Artigo em Português | LILACS, BDENF - enfermagem (Brasil) | ID: biblio-1369117

RESUMO

Objetivo: Identificaros fatores relacionados à adesão ao tratamento farmacológico em idosos. Método: trata-se de estudo bibliográfico, tipo revisão integrativa, realizado nas bases de dados LILACS, PubMed, Scopus, Web Of Science e na Biblioteca Virtual SciELO. Consideraram-se os estudos originais, disponíveis na íntegra e publicados no período de 2013 a 2018. Resultado: Localizou-se 1789 publicações, sendo que 352 eram duplicadas, permanecendo 1437. Após leitura dos títulos e resumos encontrou-se 20 artigos para leitura na íntegra e que representou a amostra final. Conclusão: A adesão ao tratamento por idosos sofre a influência de múltiplos fatores, entre eles socioeconômicos e demográficos, relacionados à condição de saúde, sistema e profissionais, relacionados ao tratamento farmacológico e de estilo de vida e comportamento. O suporte de familiares, amigos e grupos sociais de apoio mostrou-se associada à adesão, assim como percepção positiva da visão e audição, ausência de fragilidade e de declínio cognitivo.


Objetivo: Identificar factores relacionados con la adherencia al tratamiento farmacológico en ancianos. Método: se trata de un estudio bibliográfico, tipo de revisión integradora, realizado en las bases de datos LILACS, PubMed, Scopus, Web Of Science y en la Biblioteca Virtual SciELO. Se consideraron los estudios originales, disponibles íntegramente y publicados en el período de 2013 a 2018. Resultado: se encontraron 1789 publicaciones, de las cuales 352 fueron duplicadas, restando 1437. Luego de la lectura de títulos y resúmenes, se encontraron 20 artículos para lectura en el que representó la muestra final. Conclusión: La adherencia al tratamiento por parte de los ancianos está influenciada por múltiples factores, incluidos los socioeconómicos y demográficos, relacionados con la condición, sistema y profesionales de salud, relacionados con el tratamiento farmacológico y el estilo de vida y la conducta. Se demostró que el apoyo de familiares, amigos y grupos de apoyo social está asociado con la adherencia, así como con la percepción positiva de la visión y la audición, la ausencia de fragilidad y el deterioro cognitivo.


Objective: To identify factors related to adherence to pharmacological treatment in the aged. Method: this is a bibliographic study, type of integrative review, carried out in the databases LILACS, PubMed, Scopus, Web Of Science and in the Virtual Library SciELO. The original studies were considered, available in full and published in the period from 2013 to 2018. Result: 1789 publications were found, of which 352 were duplicated, remaining 1437. After reading the titles and abstracts, 20 articles were found for reading in the that represented the final sample. Conclusion: Adherence to treatment by the aged is influenced by multiple factors, including socioeconomic and demographic factors, related to the health condition, system and professionals, related to pharmacological treatment and lifestyle and behavior. The support of family, friends and social support groups was shown to be associated with adherence, as well as positive perception of vision and hearing, absence of fragility and cognitive decline.


Assuntos
Humanos , Masculino , Feminino , Idoso , Adesão à Medicação , Fatores Socioeconômicos , Comportamento , Perfil de Saúde , Relações Familiares , Disfunção Cognitiva , Estilo de Vida
8.
Crit Rev Food Sci Nutr ; 62(16): 4465-4480, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33480264

RESUMO

This study aimed to review the literature on studies that evaluated resveratrol's effects supplementation on parameters of diabetes in humans. We conducted an online search in the following databases: Pubmed, Lilacs, Scielo, Scopus, Web of Science, Embase, and Cochrane. It included experimental studies that investigated the effects of resveratrol supplementation for diabetes treatment or prevention and its relationship with fasting blood glucose, insulin resistance, and glycated hemoglobin. Observational, non-human studies and non-randomized clinical trials were excluded. We conducted a meta-analysis to evaluate the effects of resveratrol supplementation on fasting blood glucose, insulin resistance, and glycated hemoglobin. Thirty studies were included in the review. Almost 60% demonstrated at least one significant effect of the resveratrol supplementation related to diabetes. In the meta-analysis, there was a significant effect on the reduction of insulin resistance [SMD: -0.34; CI 95%: -0.64, -0.04; p = 0.01; I2 = 70%] and glycated hemoglobin [SMD: -0.64; CI 95%: -1.22, -0.07; p = 0.01; I2 = 90%]. For fasting blood glucose, the results were significant only for individuals with diabetes [SMD: -0.85; CI 95%: -1.49, -0.21; p = 0.01; I2 = 90%]. This systematic review with meta-analysis demonstrated that resveratrol supplementation has protective effects on diabetes parameters.


Assuntos
Diabetes Mellitus Tipo 2 , Resistência à Insulina , Glicemia , Diabetes Mellitus Tipo 2/prevenção & controle , Suplementos Nutricionais , Hemoglobinas Glicadas , Humanos , Resveratrol/farmacologia , Resveratrol/uso terapêutico
9.
Crit Rev Food Sci Nutr ; 62(16): 4435-4448, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33480268

RESUMO

This study aimed to review the literature on studies that evaluated the effects of omega-3 supplementation on parameters of diabetes in humans. An online search was conducted in the following databases: Pubmed, LILACS, Scielo, Scopus, and Web of Science. It included experimental studies that investigated the effects of omega-3 supplementation for diabetes treatment or prevention and its relationship with fasting blood glucose, insulin resistance, and glycated hemoglobin. Observational, non-human studies and non-randomized clinical trials were excluded. The Cochrane scale assessed the quality of the studies. A meta-analysis was carried out to evaluate the effect of omega-3 on fasting blood glucose, insulin resistance, and glycated hemoglobin. Thirty studies were included in the review. Almost 70% (n = 20) demonstrated at least one significant effect of the omega-3 supplementation related to diabetes. In the meta-analysis, there was a significant effect on the reduction of fasting blood glucose [SMD: -0.48; CI95%: -0.76, -0.19; p = 0.01; I2 = 88%] and insulin resistance [SMD: -0.61; CI95%: -0.98, -0.24; p = 0.01; I2 = 90%]. For glycated hemoglobin, there was no significant effect in the meta-analysis. This systematic review with meta-analysis demonstrated that supplementation with omega-3 has protective effects on diabetes parameters.


Assuntos
Diabetes Mellitus Tipo 2 , Diabetes Mellitus , Ácidos Graxos Ômega-3 , Resistência à Insulina , Glicemia , Diabetes Mellitus/prevenção & controle , Diabetes Mellitus Tipo 2/tratamento farmacológico , Suplementos Nutricionais , Ácidos Graxos Ômega-3/farmacologia , Ácidos Graxos Ômega-3/uso terapêutico , Hemoglobinas Glicadas , Humanos
10.
Int J Epidemiol ; 51(4): 1120-1141, 2022 08 10.
Artigo em Inglês | MEDLINE | ID: mdl-34904160

RESUMO

BACKGROUND: The consumption of some food groups is associated with the risk of diabetes. However, there is no evidence from meta-analysis which evaluates the consumption of ultra-processed products in the risk of diabetes. This study aimed to review the literature assessing longitudinally the association between consumption of ultra-processed food and the risk of type 2 diabetes and to quantify this risk through a meta-analysis. METHODS: We conducted a systematic review and meta-analysis with records from PubMed, Latin American and Caribbean Literature in Health Sciences (LILACS), Scielo, Scopus, Embase, and Web of Science. We included longitudinal studies assessing ultra-processed foods and the risk of type 2 diabetes. The review process was conducted independently by two reviewers. The Newcastle Ottawa scale assessed the quality of the studies. A meta-analysis was conducted to assess the effect of moderate and high consumption of ultra-processed food on the risk of diabetes. RESULTS: In total 2272 records were screened, of which 18 studies, including almost 1.1 million individuals, were included in this review and 72% showed a positive association between ultra-processed foods and the risk of diabetes. According to the studies included in the meta-analysis, compared with non-consumption, moderate intake of ultra-processed food increased the risk of diabetes by 12% [relative risk (RR): 1.12; 95% confidence interval (CI): 1.06-1.17, I2 = 24%], whereas high intake increased risk by 31% (RR: 1.31; 95% CI: 1.21-1.42, I2 = 60%). CONCLUSIONS: The consumption of ultra-processed foods increased the risk for type 2 diabetes as dose-response effect, with moderate to high credibility of evidence.


Assuntos
Diabetes Mellitus Tipo 2 , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/etiologia , Dieta/efeitos adversos , Fast Foods/efeitos adversos , Humanos , Estudos Longitudinais , Risco
11.
Nutrition ; 91-92: 111399, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34626955

RESUMO

OBJECTIVE: According to in vivo and in vitro studies, melatonin appears to be a potential supplement for obesity reduction. The aim of this study was to review the literature on randomized clinical trials that evaluated the effects of melatonin supplementation on anthropometric indicators of obesity in humans. METHODS: We conducted a systematic review with meta-analysis in the following databases: Pubmed, LILACS, Scielo, Scopus, Web of Science, Cochrane, and Embase. We included studies that evaluated melatonin supplementation's effects, compared with placebo, on anthropometric measures, including body weight, body mass index (BMI), and waist circumference, in people ≥18 y of age. This systematic review and meta-analysis were registered on PROSPERO: CRD42021241079. RESULTS: Of the 23 studies included, 11 showed significant results from melatonin supplementation on weight loss, BMI, or waist circumference, compared with placebo. In the meta-analysis, melatonin supplementation significantly reduced body weight (standardized mean difference, -0.48; 95% confidence interval, -0.94 to -0.02; P = <0.01; I2 = 92%). Results for BMI and waist circumference were null. The I2 tests were significant for the analyses with significant results. CONCLUSION: The results demonstrated that melatonin supplementation was responsible for significantly reducing body weight. More studies are needed before melatonin can be recommended for weight loss.


Assuntos
Melatonina , Índice de Massa Corporal , Peso Corporal , Suplementos Nutricionais , Humanos , Obesidade/tratamento farmacológico , Ensaios Clínicos Controlados Aleatórios como Assunto , Circunferência da Cintura
12.
Clin Nutr ; 40(7): 4595-4605, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34229264

RESUMO

BACKGROUND & AIMS: Melatonin appears as a supplement capable of helping with diabetes. However, there is no evidence from meta-analyses that showed significant results in insulin resistance and glycated hemoglobin. This study aimed to review the literature on randomized clinical trials that evaluated melatonin supplementation effects, compared to placebo, on diabetes parameters in humans. METHODS: We conducted a systematic review and meta-analysis in the following databases: Pubmed, LILACS, Scielo, Scopus, Web of Science, Cochrane, and Embase. We included randomized clinical trials investigating melatonin supplementation's effects, compared to placebo, on fasting blood glucose, insulin resistance, and glycated hemoglobin. Non-randomized clinical trials, observation studies, and animal models were excluded. The Cochrane scale assessed the quality of the studies. We conducted a meta-analysis on fasting blood glucose, insulin resistance, and glycated hemoglobin. RESULTS: Sixteen studies were included, of which 56% showed benefits from supplementation with melatonin in diabetes parameters compared with placebo. Our meta-analysis showed significant results for fasting blood glucose [mean difference: -4.65; 95% CI: -8.06, -1.23; p = < 0.01; I2 = 58%], glycated hemoglobin [mean difference: -0.38; 95% CI: -0.67, -0.10; p = 0.30; I2 = 18%], and insulin resistance [mean difference: -0.58; 95% CI: -1.00, -0.15; p = 0.17; I2 = 35%]. CONCLUSIONS: Our results showed that melatonin supplementation was useful for reducing diabetes parameters when compared to placebo.


Assuntos
Diabetes Mellitus/terapia , Suplementos Nutricionais , Melatonina/administração & dosagem , Adulto , Glicemia/efeitos dos fármacos , Diabetes Mellitus/sangue , Jejum/sangue , Feminino , Hemoglobinas Glicadas/efeitos dos fármacos , Humanos , Insulina/sangue , Resistência à Insulina , Masculino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto
13.
Clin Nutr ESPEN ; 44: 105-113, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34330453

RESUMO

BACKGROUND & AIMS: Results from narrative reviews showed potential from omega-3 supplementation on lean body mass. In older adults, a previous meta-analysis showed significant results from omega-3 on lean body mass. This review aimed to investigate randomized clinical trials that evaluated the effects of omega-3 supplementation, compared to placebo, on lean body mass in humans. METHODS: A systematic review and meta-analysis were conducted in Pubmed, LILACS, SciELO, Web of Science, Scopus, Embase, SPORTDiscus, and Cochrane Library. The authors assessed the risk of bias using the Cochrane tool. Randomized clinical trials that evaluated the effects of omega-3 supplementation compared to placebo on lean body mass were included. RESULTS: In total, 11 studies were included, from which two found significant effects on lean body mass. In the meta-analysis, none of the results were significant. CONCLUSIONS: Omega-3 supplementation had no significant effect on lean body mass compared to placebo.


Assuntos
Suplementos Nutricionais , Ácidos Graxos Ômega-3 , Idoso , Composição Corporal , Humanos
14.
Clin Nutr ESPEN ; 44: 122-129, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34330455

RESUMO

BACKGROUND: Omega-3 is a supplement that promotes several health benefits. The evidence on omega-3 in weight loss or body fat mass is inconclusive. This study aimed to review the literature on studies that evaluated the effect of omega-3 supplementation and changes in weight and/or body fat mass in humans. METHODS: A systematic review, following the recommendations of PRISMA, in the databases Pubmed, Lilacs, and Scielo. Only experimental studies in humans that evaluated the effects of supplementation with omega-3 on weight loss and/or body fat mass were included. RESULTS: In total, 20 studies were selected, of which 11 found no effect, and the other nine find some benefits. Two studies found a reduction in individuals' body fat, and a third found these results in women and a fourth only in men. In children and adolescents, one study found a difference in weight loss between groups. Four studies reported decreased body weight in women, and in men, only one found this result. CONCLUSION: To date, there is no consistency in the literature that omega-3 has benefits in weight loss or body fat mass in humans. Due to the studies' heterogeneity and inconsistency in the results, further studies on the subject are necessary.


Assuntos
Ácidos Graxos Ômega-3 , Tecido Adiposo , Adolescente , Peso Corporal , Criança , Suplementos Nutricionais , Feminino , Humanos , Masculino
15.
Clin Nutr ESPEN ; 41: 59-67, 2021 02.
Artigo em Inglês | MEDLINE | ID: mdl-33487308

RESUMO

BACKGROUND & AIMS: Obesity is increasing worldwide. Resveratrol appears as a substance capable of helping with weight loss. This study aimed to investigate the resveratrol effect in the treatment of obesity in general population. METHODS: An online search was conducted in the following databases: Pubmed, LILACS, Scielo, Scopus and Web of Science. Experimental studies that investigated the effects between resveratrol supplementation for weight loss treatment, as well as its relationship with overweight and obesity were included. Observational and non-human studies were excluded. The Cochrane scale was used to assess the quality of the studies. RESULTS: Nineteen studies were included, of which only three demonstrated some type of positive effect. In the meta-analysis, there was no significant effect on weight loss [SMD: 0.03; CI95%: -0,44, 0,49; p = 0,01; I2 = 82%], and body mass index (BMI) [SMD: 0.01; CI95%: -0,39, 0,41; p = 0,01; I2 = 72%]. A small effect was found on the waist circumference [SMD: -1.04; CI95%: -1,86, -0,27; p = 0,01; I2 = 87%]. CONCLUSION: This systematic review with meta-analysis demonstrated that supplementation with resveratrol does not have an anti-obesity effect.


Assuntos
Obesidade , Sobrepeso , Índice de Massa Corporal , Peso Corporal , Humanos , Obesidade/tratamento farmacológico , Sobrepeso/tratamento farmacológico , Resveratrol/farmacologia
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