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OBJECTIVE: This study evaluated the acute effect of a high-carbohydrate snack (HCS) on systemic microvascular function of healthy, young volunteers, using laser speckle contrast imaging (LSCI). METHODS: Cutaneous microvascular blood flow was assessed in the forearm with LSCI coupled to iontophoresis of acetylcholine, using increasing anodal currents, before and after (25â¯min) the ingestion of a HCS or water (control). Twenty volunteers (10 male) received a single HCS (70â¯g of carbohydrates) in the fasting state in the morning. RESULTS: The area under the curve (AUC) of acetylcholine-induced microvascular vasodilation increased from 17,847⯱â¯4539 to 20,315⯱â¯7168â¯arbitraryâ¯perfusionâ¯units/s (Pâ¯=â¯0.03) after ingestion of a HCS, but was unchanged after the ingestion of water (Pâ¯=â¯0.22). CONCLUSION: A single snack consisting on an acute oral load of carbohydrates induced a significant increase of endothelium-dependent microvascular vasodilation in healthy, young subjects.
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Carboidratos da Dieta/administração & dosagem , Endotélio Vascular/fisiologia , Microcirculação , Microvasos/fisiologia , Pele/irrigação sanguínea , Lanches , Vasodilatação , Adolescente , Adulto , Velocidade do Fluxo Sanguíneo , Feminino , Antebraço , Voluntários Saudáveis , Humanos , Masculino , Fluxo Sanguíneo Regional , Fatores de Tempo , Adulto JovemRESUMO
CONTEXT: Diseases related to excessive sugar consumption have become a public health concern. However, there may be a direct association between the consumption of artificial sweeteners and changes in body weight. OBJECTIVE: The aim was to evaluate potential industry financial conflicts of interest in publications on the relationship between high-intensity sweetener consumption and changes in body weight in observational and intervention studies. DATA SOURCES: The systematic review used the Medline, Embase, Cochrane, Scopus, and the VHL (Virtual Health Library) Regional Portal, including the LILACS databases. The PICOS strategy were used in the search strategy for intervention studies and for observational studies used the exposure factor as the criterion. DATA EXTRACTION: Inclusion criteria were observational and intervention studies in adults, without population or health status restrictions, without restriction on the year of publication, but restricted to full articles in Portuguese, English, and Spanish. Exclusion criteria were humans younger than 18 years, cross-sectional studies, and animal and in vitro studies. DATA ANALYSIS: There were extracted effect estimates, odds ratios, and linear associations, quantifying the effects per unit of intake of high-intensity sweeteners. The risk of bias in the intervention studies was assessed using the Cochrane Collaboration Risk of Bias tool (RoB). The Newcastle Ottawa Scale was used for observational studies (case-control and cohort). CONCLUSION: Most clinical trials favor using artificial sweeteners and receive contributions from the food industry. Observational studies, for the most part, show that the use of artificial sweeteners is unfavorable. In these studies, there was no sponsorship from the food industry, only from regulatory bodies. This result suggests that studies that had the support of the food industry had their influence on their outcomes. SYSTEMATIC REVIEW REGISTRATION: PROSPERO registration no: CRD42016036204.
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Introduction: Introduction: an increase in the consumption of processed and ultra-processed foods may predispose to metabolic abnormalities. Objective: to verify the association of food consumption with metabolic phenotype in workers from a quaternary hospital in Rio de Janeiro, Brazil. Methods: workers of both sexes aged > 18 years were eligible. A food frequency questionnaire and the NOVA classification were used in the food consumption analysis. Metabolic phenotype considered the presence of at least one metabolic alteration (blood glucose, serum lipids, and blood pressure) combined with BMI (eutrophic or excess weight) as follows: 1) metabolically healthy eutrophic (MHE); 2) metabolically unhealthy eutrophic (MUE); 3) metabolically healthy excess weight (MHEW); 4) metabolically unhealthy excess weight (MUEW). Results: from the included 160 participants (mean age, 45.2 ± 1.1 years; 59.4 %, women), 21.9 % self-reported arterial hypertension and 4.4 % diabetes. Most presented excess weight (74.6 %), with approximately 40 % being obese. The MUEW phenotype had higher body fat percentage and central adiposity represented by higher WC and VFA in comparison to the other phenotypes. The lean body mass was similar between the groups. The median of ultra-processed foods was 32.4 % for eutrophic, 32.7 % for overweight, and 34.3 % for obese subjects. No significant associations were observed between ultra-processed food consumption and metabolically unhealthy eutrophic (OR: 1.01; 95 % CI: 0.96-1.06), metabolically healthy excess weight (OR: 1.03; 95 % CI: 0.98-1.08), and metabolically unhealthy excess weight (OR: 1.00; 95 % CI: 0.96-1.05) in comparison to metabolically healthy eutrophic. Conclusion: consumption of ultra-processed food was high. In this cross-sectional analysis, no association of metabolic phenotypes with consumption of food groups according to degree of food processing were observed.
Introducción: Introducción: el incremento del consumo de alimentos procesados y ultraprocesados puede predisponer a alteraciones metabólicas. Objetivo: verificar la asociación del consumo de alimentos con el fenotipo metabólico en trabajadores de un hospital cuaternario de Rio de Janeiro, Brasil. Métodos: fueron elegibles trabajadores de ambos sexos de edad > 18 años. El cuestionario de frecuencia de alimentos y la clasificación NOVA se utilizaron en el análisis del consumo de alimentos. El fenotipo metabólico consideró la presencia de al menos una alteración metabólica (glucemia, lípidos séricos y presión arterial) combinada con el IMC (eutrófico o exceso de peso) de la siguiente manera: 1) eutrófico metabólicamente saludable (EHM); 2) eutróficos metabólicamente no saludables (MUE); 3) exceso de peso metabólicamente saludable (MHEW); 4) exceso de peso metabólicamente no saludable (MUEW). Resultados: de los 160 participantes incluidos (edad media: 45,2 ± 1,1 años, 59,5 % de mujeres), el 21,9 % refirieron hipertensión arterial y el 4,4 % diabetes. La mayoría presentaron exceso de peso (74,6 %), siendo aproximadamente un 40 % obesos. El fenotipo MUEW presentó mayor porcentaje de grasa corporal y adiposidad central representada por mayor CC y VFA en comparación con los otros fenotipos. La masa corporal magra fue similar entre los grupos. La mediana de alimentos ultraprocesados fue de 32,4 % para los eutróficos, 32,7 % para el sobrepeso y 34,3 % para los obesos. No se observaron asociaciones significativas entre el consumo de ultraprocesados y el fenotipo eutrófico metabólicamente no saludable (OR: 1,01; IC 95 %: 0,96-1,06), exceso de peso metabólicamente saludable (OR: 1,03; IC 95 %: 0,98-1,08) y exceso de peso metabólicamente no saludable (OR: 1,00; IC 95 %: 0,96-1,05) en comparación con los eutróficos metabólicamente sanos. Conclusión: el consumo de alimentos ultraprocesados fue elevado. En este análisis transversal, no se observó asociación de fenotipos metabólicos y consumo de grupos de alimentos según el grado de procesamiento de los alimentos.
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Manipulação de Alimentos , Obesidade , Masculino , Feminino , Humanos , Índice de Massa Corporal , Estudos Transversais , Brasil/epidemiologia , Obesidade/epidemiologia , Obesidade/metabolismo , FenótipoRESUMO
The purpose of the present study was to identify the association of the Pro12Ala polymorphism in the PPAR-gamma2 gene with diabetes, insulinaemia and insulin resistance. A meta-analysis study was carried out based on studies conducted in the last 10 years, using the databases PubMed, ISI Web of Knowledge, High Wire Press and Scielo, and the reference lists of the obtained articles. We included original studies that showed the relationship between the Pro12Ala polymorphism in the PPAR-gamma2 gene and type 2 diabetes mellitus (T2DM), insulinaemia and insulin resistance. Statistical analyses were conducted using the program RevMAn 5.0. The Mantel-Haenszel test was used to estimate the OR and the 95 % CI of the dichotomous variable, while the standardised effect size was used to estimate the average standardised mean difference and 95 % CI of continuous variables. The studies were subgrouped by ethnicity and overweight status. Forty-one studies were analysed, including a global sample of 30 612 subjects. We found a significant association of the Ala allele with the lowest risk of T2DM in Caucasians (OR 0.80; 95 % CI 0.65, 0.98), lower serum insulin (standardised effect size: - 0.05; 95 % CI - 0.09, - 0.00; P = 0.04), and greater sensitivity to insulin in overweight individuals (homeostasis model assessment of insulin resistance standardised effect size: - 0.07; 95 % CI - 0.13, - 0.01; P = 0.02). Considering that the Pro12Ala polymorphism in the PPAR-gamma2 gene is one of the factors related to insulin sensitivity, the present study demonstrated a significant effect of the Ala allele on lower development of T2DM in Caucasians and greater sensitivity to insulin in overweight subjects.
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Diabetes Mellitus Tipo 2/genética , Resistência à Insulina/genética , Sobrepeso/genética , PPAR gama/genética , Polimorfismo Genético , Alelos , Diabetes Mellitus Tipo 2/etnologia , Humanos , Insulina/sangue , Resistência à Insulina/etnologia , Sobrepeso/etnologia , Fatores de Risco , População Branca/genéticaRESUMO
INTRODUCTION: Introduction: resistant arterial hypertension (HAR) is associated with a high risk for cardiovascular events due to oxidative stress. Research has shown the beneficial effects of dietary antioxidants on cardiovascular health. Objective: to analyze and correlate the biochemical, anthropometric profile and intake of antioxidant micronutrients of patients with HAR. Material and methods: the patients underwent a biochemical assessment, and an anthropometric assessment to calculate body mass index (IMC), waist circumference (PCI), hip circumference (PCA), waist-to-hip ratio (ICC), and micronutrient intake assessment: vitamin A, vitamin C, vitamin E, selenium and zinc, estimated by a semi-quantitative food frequency questionnaire and 24-hour recall. The statistical analysis was performed using the SPSS Statistics 20 software. A p-value < 0.05 was considered significant. Results: sixty individuals with HAR were studied, with a mean age of 62.83 ± 10.73 years. Mean IMC was 31.01 ± 5.60 kg/m², PCI, 98.12 ± 15.04 cm, PCA, 110.55 ± 13.16 cm, and ICC, 0.879 ± 0.084. Regarding the biochemical profile, mean total colesterol was 187.65 ± 48.29 mg/dL, triglycerides, 136.38 ± 99.91 mg/dL; HDL-col, 49.00 ± 10.99 mg/dL; LDL-col, 112.01 ± 41.89 mg/dL; glucose, 105.37 ± 14.81 mg/dL, and glycated hemoglobin, 6.29 ± 1.76 %. The average daily intake of antioxidants was: vitamin A, 241.47 ± 191.87 µg/d; vitamin C, 147.02 ± 192.94 mg/d; vitamin E, 1.99 ± 1.82 mg/d; selenium, 36.80 ± 34.56 µg/d, and zinc, 99.91 ± 6.64 mg/d, where 91.38 %, 46.55 %, 93.10 %, 67.24 %, and 46.55 % of the sample were below the recommended intakes, respectively. Conclusion: inadequate antioxidant intake was observed in these patients with HAR, with a high prevalence of obesity, especially visceral adiposity and alterations in lipid profile, conditions that require a greater usage of these micronutrients. We suggest there is a need for dietary planning for these patients to improve their quality of life and their response to antihypertensive treatment.
INTRODUCCIÓN: Introducción: la hipertensión arterial resistente (HAR) se asocia a un alto riesgo de eventos cardiovasculares debido al estrés oxidativo. Los estudios han demostrado los efectos beneficiosos de los antioxidantes dietéticos sobre la salud cardiovascular. Objetivo: analizar y correlacionar el perfil bioquímico y antropométrico, y la ingesta de micronutrientes antioxidantes en pacientes con HAR. Material y métodos: los pacientes se sometieron a una evaluación bioquímica y antropométrica para calcular el índice de masa corporal (IMC), el perímetro de la cintura (PCI), el perímetro de la cadera (PCA), el índice cintura-cadera (ICC) y la ingesta de micronutrientes vitaminas A, C y E, selenio y zinc utilizando una encuesta de frecuencia de consumo alimentario y el recordatorio de 24 horas. El análisis estadístico se realizó utilizando el software SPSS Statistics 20, con un valor de p < 0,05 como significativo. Resultados: estudiamos a 60 individuos con HAR de 62,83 ± 10,73 años. El IMC medio fue de 31,01 ± 5,60 kg/m²; el PCI de 98,12 ± 15,04 cm, el PCA de 110,55 ± 13,16 cm y el ICC de 0,879 ± 0,084. Respecto al perfil bioquímico, el colesterol total medio fue de 187,65 ± 48,29 mg/dL, los triglicéridos de 136,38 ± 99,91 mg/dL, el HDL-col de 49,00 ± 10,99 mg/dL, el LDL-col de 112,01 ± 41,89 mg/dL, la glucemia de 105,37 ± 14,81 mg/dL y la hemoglobina glucosilada del 6,29 ± 1,76 %. La ingesta de antioxidantes fue: vitamina A: 241,47 ± 191,87 µg/d; vitamina C: 147,02 ± 192,94 mg/d; vitamina E: 1,99 ± 1,82 mg/d; selenio: 36,80 ± 34,56 µg/d, y zinc: 9,91 ± 6,64 mg/d, y el 91,38 %, 46,55 %, 93,10 %, 67,24 % y 46,55 % de la muestra se encontraron por debajo de lo recomendado, respectivamente. Conclusión: se observó una ingesta insuficiente de antioxidantes en los pacientes con HAR, que presentan una alta prevalencia de obesidad, especialmente de adiposidad visceral y alteraciones del perfil lipídico, afecciones que requieren un mayor uso de estos micronutrientes. Se sugiere la necesidad de una planificación dietética dirigida a estos pacientes para mejorar la calidad de vida y la respuesta al tratamiento antihipertensivo.
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Antioxidantes/administração & dosagem , Hipertensão/tratamento farmacológico , Micronutrientes/administração & dosagem , Idoso , Antropometria , Ácido Ascórbico/administração & dosagem , Glicemia/análise , Índice de Massa Corporal , Colesterol/sangue , HDL-Colesterol/sangue , LDL-Colesterol/sangue , Estudos Transversais , Registros de Dieta , Resistência a Medicamentos , Feminino , Quadril/anatomia & histologia , Humanos , Hipertensão/sangue , Hipertensão/complicações , Masculino , Pessoa de Meia-Idade , Estresse Oxidativo , Selênio/administração & dosagem , Triglicerídeos/sangue , Vitamina A/administração & dosagem , Vitamina E/administração & dosagem , Vitaminas/administração & dosagem , Circunferência da Cintura , Relação Cintura-Quadril , Zinco/administração & dosagemRESUMO
BACKGROUND: Heart failure (HF) is an important public health problem, considered a new epidemic with high morbidity and mortality. The progression of HF often determines weight reduction, muscle mass loss, and reduced physical ability. Whey protein supplementation may increase the effects of exercise on strength and muscle mass, in addition to promoting improved endothelial function, body composition and quality of life. However, studies are needed to evaluate its benefits in patients with HF. METHODS/DESIGN: This is a double-blind, randomized, placebo-controlled clinical trial in which patients with HF will be randomly allocated to two groups to receive supplementation with whey protein or placebo, associated with supervised exercise, for 12 weeks. The frequency of exercise will be three times a week. The study variables will be evaluated at baseline and 12 weeks. The main outcome will be maintenance of muscle mass and strength. Microvascular reactivity, quality of life, and inflammatory parameters will be evaluated as secondary outcomes. DISCUSSION: HF is associated with severe loss of muscle mass and strength, directly contributing to exercise intolerance and inability to maintain daily life activities, becoming a strong predictor of reduced quality of life and mortality. The results of this study will add to the evidence base for providing new dietary recommendations. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT03142399 . Registered on 29 May 2016. Effect of Whey Protein' Supplementation and Exercise in Patients with Heart Failure (PROT-HF).
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Reabilitação Cardíaca/métodos , Suplementos Nutricionais , Terapia por Exercício , Insuficiência Cardíaca/terapia , Força Muscular , Músculo Esquelético/fisiopatologia , Proteínas do Soro do Leite/administração & dosagem , Composição Corporal , Brasil , Reabilitação Cardíaca/efeitos adversos , Terapia Combinada , Suplementos Nutricionais/efeitos adversos , Método Duplo-Cego , Terapia por Exercício/efeitos adversos , Tolerância ao Exercício , Feminino , Nível de Saúde , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto , Fatores de Tempo , Resultado do Tratamento , Proteínas do Soro do Leite/efeitos adversosRESUMO
INTRODUCTION: Nutritional status has been implicated in the modulation of the immune response, possibly augmenting the pathogenesis of Chagas disease (Cd). We evaluated diet quality and nutritional status in adults and elderly patients with chronic Cd in a tertiary hospital. METHODS: A case-control study of Cd patients was conducted, paired for gender, age, and co-morbidities with non-Cd patients. Anthropometric measurements and food frequency questionnaire was used, and diet quality was assessed by the Brazilian Healthy Eating Index-Revised (BHEI-R). The Estimated Average Requirement cut-off points were used to determine the dietary micronutrient adequacy. The Cd group was further grouped according to Los Andes classification. RESULTS: The study participants were 67 ± 10 years old, 73.6% elderly and 63% female. The prevalence of overweight/obesity and abdominal fat was high in both groups; however, Cd group showed a lower prevalence of obesity and increased risk of disease according to waist circumference classification. There was no difference in BHEI-R score between groups (p=0.145). The Cd group had sodium and saturated fat intake above recommendations and low intake of unsaturated fat, vitamin D, E, selenium, magnesium, and dairy products; but higher intake of iron. According to Los Andes classification, group III presented lower intake of whole fruit and dietary fiber. CONCLUSIONS: Patients with Cd were overweight and the quality of their diet was unsatisfactory based on the recommended diet components for age and sex.
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Doença de Chagas/fisiopatologia , Ingestão de Energia/fisiologia , Comportamento Alimentar/fisiologia , Obesidade/fisiopatologia , Idoso , Índice de Massa Corporal , Estudos de Casos e Controles , Doença Crônica , Inquéritos sobre Dietas , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estado Nutricional , Centros de Atenção TerciáriaRESUMO
Introdução: O câncer de mama é o segundo tipo de câncer mais comum no mundo e o mais comum entre as mulheres. Além disso, a doença cardiovascular é a causa mais comum de morte em mulheres. Objetivo: Avaliar os fatores de risco cardiovascular e de síndrome metabólica em mulheres com câncer de mama em uso de tamoxifeno. Métodos: Estudo transversal realizado com mulheres com diagnóstico prévio de câncer de mama. Para o diagnóstico da síndrome metabólica, foram utilizados os critérios da American Heart Association (2009). O risco cardiovascular foi avaliado pelo escore de risco de Framingham. Resultados: A frequência da síndrome metabólica é de 75% (n=24) dos participantes do estudo. A avaliação do risco cardiovascular mostrou que 18,7% (n=6) e 21,9% (n=7) das participantes apresentavam risco intermediário a alto, respectivamente. Conclusão: Conclui-se que mulheres em tratamento para câncer de mama apresentam alta prevalência de síndrome metabólica e fatores de risco cardiovascular, aumentando a mortalidade por doenças cardiovasculares neste grupo.
Introduction: Breast cancer is the second most common cancer in the world and the most common type among women. In addition, the cardiovascular disease is the most common cause of death in women. Objective: The objective was to assess cardiovascular risk factors and metabolic syndrome in women with breast cancer using tamoxifen. Methods: Cross-sectional study conducted with women with a previous breast cancer diagnosis. For metabolic syndrome diagnosis, the criteria established by the American Heart Association (2009) were used. Cardiovascular risk was assessed using the Framingham Risk Score Results: The frequency of metabolic syndrome is 75% (n=24) of the study participants. The cardiovascular risk assessment showed that 18.7% (n=6) and 21.9% (n=7) of the participants were at intermediate to high risk, respectively Conclusion: It is concluded that women undergoing breast cancer treatment have a high prevalence of metabolic syndrome and cardiovascular risk factors, increasing mortality from cardiovascular diseases in this group
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Humanos , Feminino , Tamoxifeno , Neoplasias da Mama , Medição de Risco , Síndrome Metabólica/epidemiologia , Fatores de Risco de Doenças Cardíacas , Brasil , Prevalência , Estudos TransversaisRESUMO
Comparar a prevalência dos fatores de risco para doenças cardiovasculares em pacientes com fenótipo de HF com e sem mutação. Métodos: Estudo transversal com pacientes que apresentam níveis de LDL-c ≥ 190 mg/dl e história pessoal ou familiar de hipercolesterolemia com diagnóstico genético positivo ou negativo. Foi aplicado um questionário padronizado para obtenção de informações sobre os fatores de risco cardiovascular (idade, sexo, perfil bioquímico, histórico de DCV, tabagismo, HAS, DM tipo II e estado nutricional). Também foram realizadas avaliações antropométricas e laboratoriais. Os dados foram analisados no software IBM® SPSS® Statistics versão 21 e o nível de significância estatística foi estabelecido em p < 0,05. Resultados: Foram avaliados 103 pacientes de ambos os sexos (67% mulheres) com média de idade de 55,27 ± 15,07 anos. Trinta e três pacientes tinham diagnóstico de HF. A comorbidade mais prevalente foi a hipertensão arterial sistêmica (65,05%), seguida de sobrepeso/obesidade (57,28%) e diabetes mellitus tipo II (26,21%). Conclusão: Portadores de HF apresentaram menor prevalência de FR cardiovasculares, quando comparados com pacientes sem a mutação. No entanto, eles ainda merecem atenção diferenciada e focada no manejo de FR modificáveis, uma vez que a presença de pelo menos um FR já aumenta significantemente o risco CV nessa população
To compare the prevalence of risk factors for cardiovascular disease in patients with FH phenotype with and without mutation. Methods: A cross-sectional study with patients who present LDL-c levels ≥190mg/dL and a personal or family history of hypercholesterolemia with positive or negative genetic diagnosis. We applied a standardized questionnaire to obtain information on cardiovascular risk factors (age, sex, biochemical profile, history of CVD, smoking, hypertension, type 2 diabetes mellitus and nutritional status). Anthropometric measurements and laboratory tests were also performed. The data were analyzed using version 21 of the IBM® SPSS® Statistics software and statistical significance was established as p <0.05. Results: We studied 103 patients of both sexes (67% female) with a mean age of 55.27 ± 15.07 years. Thirty-three patients had a diagnosis of FH. The most prevalent comorbidity was systemic hypertension (65.05%), followed by overweight/obesity (57.28%) and type 2 diabetes mellitus (26.21%). Conclusion: The population with FH had lower cardiovascular RF prevalence when compared with patients without the mutation. However, they still merit differentiated care focused on the management of modifiable RFs, since the presence of at least one RF already significantly increases the CV risk in this population
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Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Fenótipo , Doenças Cardiovasculares , Prevalência , Fatores de Risco , Hiperlipoproteinemia Tipo II , Antropometria , Inquéritos e Questionários , Diabetes Mellitus , Aterosclerose , Sobrepeso , Estudo Observacional , Hipertensão , ObesidadeRESUMO
Abstract INTRODUCTION: Nutritional status has been implicated in the modulation of the immune response, possibly augmenting the pathogenesis of Chagas disease (Cd). We evaluated diet quality and nutritional status in adults and elderly patients with chronic Cd in a tertiary hospital. METHODS: A case-control study of Cd patients was conducted, paired for gender, age, and co-morbidities with non-Cd patients. Anthropometric measurements and food frequency questionnaire was used, and diet quality was assessed by the Brazilian Healthy Eating Index-Revised (BHEI-R). The Estimated Average Requirement cut-off points were used to determine the dietary micronutrient adequacy. The Cd group was further grouped according to Los Andes classification. RESULTS: The study participants were 67 ± 10 years old, 73.6% elderly and 63% female. The prevalence of overweight/obesity and abdominal fat was high in both groups; however, Cd group showed a lower prevalence of obesity and increased risk of disease according to waist circumference classification. There was no difference in BHEI-R score between groups (p=0.145). The Cd group had sodium and saturated fat intake above recommendations and low intake of unsaturated fat, vitamin D, E, selenium, magnesium, and dairy products; but higher intake of iron. According to Los Andes classification, group III presented lower intake of whole fruit and dietary fiber. CONCLUSIONS: Patients with Cd were overweight and the quality of their diet was unsatisfactory based on the recommended diet components for age and sex.