Lyra, Clélia de OliveiraSilva, Ana Gabriella Costa Lemos da2024-06-172024-06-172023-12-18SILVA, Ana Gabriella Costa Lemos da. Estado nutricional de vitamina E e fatores de risco cardiovascular em adultos e idosos: estudo Brazuca Natal. Orientadora: Dra. Clélia de Oliveira Lyra. 2023. 137f. Tese (Doutorado em Saúde Coletiva) - Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal, 2023.https://repositorio.ufrn.br/handle/123456789/58497Introduction: Cardiovascular diseases (CVD) are the principal cause of morbidity and mortality in the world. Therefore, experts have studied strategies for preventing and treating cardiovascular events. One of this knowledge is vitamin E stands out for its antioxidant and anti-inflammatory properties, supported by findings that higher dietary intake of vitamin E and higher concentrations of serum α-tocopherol (α-TOH) are associated with a lower risk of cardiovascular events. Therefore, data on the nutritional status of vitamin E in the population and its relationship with cardiovascular risk factors are relevant strategies to support programs and public policies aimed at preventing and treating CVD. Objective: To evaluate the nutritional status of vitamin E and its association with cardiovascular risk factors in adults and older adults in the Brazuca Natal Study. Methods: This is a study of different methodological strategies. 1) The narrative review aimed to verify if surveys could demonstrate an association between serum vitamin E and the occurrence of CVD. Moreover, we would like to understand whether vitamin E deficiency (VED) should also be considered a public health problem. 2) Cross-sectional study, divided into two scientific articles. The first article of this study sought to evaluate the prevalence of VED and cardiovascular risk factors that are associated with serum α-TOH status in adults and elderly people from the Brazuca Natal study. We performed a multiple linear regression analysis between serum α-TOH (dependent variable) and cardiovascular risk factors. The second article aimed to evaluate vitamin E intake, and we would like to identify the principal food sources of this micronutrient intake. To this end, we analyzed socioeconomic and demographic conditions (sex, age, color/race, education, per capita income, and health district of residence), and vitamin E intake (dependent variable). Results: In the narrative review, we observed that VED could be a public health problem. The prevalence of VED varies from 0.6% to 55.5% in the world, with higher percentages in Asia and Europe, where the high mortality rates from CVD stand out. Population studies suggest the protective effects of vitamin E on CVD. However, intervention studies with α-TOH supplementation have not confirmed its cardioprotective action. In article 2 of the crosssectional study, we observed that 24.8% of adults and older adults in Natal had VED, and 89% had low concentrations of circulating α-TOH (below 30 µmol/L). Furthermore, high visceral adiposity index and higher global risk score values were associated with higher serum α-TOH concentrations. Article 3 demonstrated that 95.7% of individuals had a low intake of vitamin E, considering the Estimated Average Requirement (EAR) of 12 mg/day, with lower intake values in individuals over 40 years of age, women, those who have a per capita income of less than the minimum wage and with less education. Soybean oil, açaí pulp, and red meat provided the highest content of ingested vitamin E. Conclusion: From the narrative review, it was demonstrated that VED can be a public health problem. The cross-sectional study observed a high prevalence of VED in the studied population, in which sex, visceral adiposity index and global risk score are associated with serum α-TOH. Furthermore, a low consumption of vitamin E was observed, mainly in older individuals, women and those with low socioeconomic status. Most of the vitamin E consumed came from soybean oil, açaí pulp and red meat, with vitamin E also coming from ultra-processed foods, especially in the lowerincome population.Acesso AbertoVitamina EAlfa-tocoferolDeficiência de vitamina EFatores de risco cardiovascularConsumo alimentardoctoralThesisCNPQ::CIENCIAS DA SAUDE::SAUDE COLETIVA