NAOMI VIDAL FERREIRA

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Revista / Livro: Clinical Nutrition Espen ×

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  • article 0 Citação(ões) na Scopus
    Dietary folate intake and its association with longitudinal changes in cognition function
    (2023) PALCHETTI, Cecilia Zanin; GONCALVES, Natalia Gomes; FERREIRA, Naomi Vidal; SANTOS, Itamar S.; LOTUFO, Paulo Andrade; BENSENOR, Isabela M.; SUEMOTO, Claudia Kimie; MARCHIONI, Dirce Maria Lobo
    Background & aims: Folate (vitamin B9) is an essential co-factor for one-carbon metabolism. Contro-versial evidence has emerged regarding the association between folate and cognitive performance. The aim of the study was to investigate the association between baseline dietary folate intake and cognitive decline in a population exposed to mandatory fortification during a median follow-up of 8 years. Methods: Multicenter, prospective cohort study involving 15,105 public servants aged 35-74 years old, both sexes, from The Brazilian Longitudinal Study of Adult Health (EL SA-Brasil). Baseline dietary intake was assessed by a Food Frequency Questionnaire (FFQ). Six cognitive tests were performed in the three waves to assess memory, executive function and global cognition. Linear mixed-effects models were used to assess the association between dietary folate intake at baseline and changes in cognition over time. Results: Data from 11,276 participants were analyzed. The mean (SD) age was 51.7 (9) years, 50% were women, 63% were overweight/obese, and 56% had graduated from college or more. Overall dietary folate intake was not associated with cognitive decline; neither vitamin B12 intake was a modifier of this association. General dietary supplements and specifically multivitamins use did not affect these findings. Natural food folate group was associated with a slower rate of global cognitive decline (b (95% CI): 0.001 (0.000; 0.002), P 1/4 0.015). There was no association between fortified food group and cognition scores. Conclusion: Overall dietary folate intake was not associated with cognitive function in this Brazilian population. However, folate naturally occurring in food sources may slow global cognitive decline.(c) 2023 European Society for Clinical Nutrition and Metabolism.