Influence of Haem, Non-Haem, and Total Iron Intake on Metabolic Syndrome and Its Components: A Population-Based Study

Studies suggest that haem, non-haem iron and total iron intake may be related to non-communicable diseases, especially metabolic syndrome. This study was undertaken to investigate the association of haem, non-haem iron and total iron intake with metabolic syndrome and its components. A cross-section...

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Bibliographic Details
Published in:Nutrients 2018-03, Vol.10 (3), p.314
Main Authors: Dos Santos Vieira, Diva Aliete, Hermes Sales, Cristiane, Galvão Cesar, Chester Luiz, Marchioni, Dirce Maria, Fisberg, Regina Mara
Format: Article
Language:English
Subjects:
Adults
Dietary fiber
Dietary intake
epidemiologic surveys
food intake
Geriatrics
Haem
Hyperglycemia
Hypertension
Iron
iron intake
Metabolic syndrome
nutritional assessment
Older people
Population studies
Population-based studies
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Summary:Studies suggest that haem, non-haem iron and total iron intake may be related to non-communicable diseases, especially metabolic syndrome. This study was undertaken to investigate the association of haem, non-haem iron and total iron intake with metabolic syndrome and its components. A cross-sectional population-based survey was performed in 2008, enrolling 591 adults and elderly adults living in São Paulo, Brazil. Dietary intake was measured by two 24 h dietary recalls. Metabolic syndrome was defined as the presence of at least three of the following: hypertension, hyperglycaemia, dyslipidaemia and central obesity. The association between different types of dietary iron and metabolic syndrome was evaluated using multiple logistic regression. After adjustment for potential confounders, a higher haem iron intake was positively associated with metabolic syndrome and with elevated triglyceride levels. A higher total iron intake was positively associated with hyperglycaemia. Non-haem iron intake was positively associated with hyperglycaemia in the fourth quintile. In conclusion, this study suggests that the different types of dietary iron are associated with metabolic syndrome, elevated triglyceride levels and hyperglycaemia. In addition, it emphasises the importance of investigating the roles of dietary iron in health outcomes, since its consumption may have different impacts on health.
ISSN:2072-6643
2072-6643
DOI:10.3390/nu10030314