Perfil dietético antioxidante de mulheres climatéricas hipertensas do Sul do Brasil

Abstract

Introduction: Oxidative stress is involved in the pathophysiology of systemic arterial hypertension (HAS) and the role of antioxidants in this context still needs to be better understood. Objective: To evaluate the prevalence of hypertension and the relationship with polyphenol intake and total dietary antioxidant capacity (DTAC) in climacteric women from Serra Gaúcha, RS, Brazil. Materials and methods: Participants (n = 41) were subjected to measurements of weight, height, waist circumference, and blood pressure. Different questionnaires were applied to obtain sociodemographic and health information, in addition to the 24- hour Food Recall. Comparisons between the hypertensive and non-hypertensive groups were made using Student's t-test or chi-square. Results: The prevalence of HAS in the population was 30% and hypertensive women had a BMI statistically higher than non-hypertensive women (p=0.047). Although without a statistical difference, it was observed that the hypertensive group had decreased DTAC and total polyphenol intake (9 and 11% reduction, respectively). The mineral magnesium had its intake significantly reduced (30%; p=0.006) by hypertensive women. This group also had an intake below the recommended for vitamins A and E. Among the foods and beverages that contributed to increasing the participants' DTAC, coffee ranked first in both groups. Conclusion: These data demonstrate the importance of monitoring the consumption of antioxidants to prevent and/or control hypertension and diseases related to heart health in climacteric women. [resumo fornecido pelo autor]