Is Food Insecurity Associated With Iron Deficiency Anemia and Vitamin D Deficiency Among Women of Reproductive Age?

A Scoping Review of Nutritional Biomarkers Associated with Food Security

Food insecurity affects more than 40 million individuals in the United States and is linked to negative health outcomes due, in part, to poor dietary quality. Despite the emergence of metabolomics as a modality to objectively characterize nutritional biomarkers, it is unclear whether food security is associated with any biomarkers of dietary quality. This scoping review aims to summarize studies that examined associations between nutritional biomarkers and food security, as well as studies that investigated metabolomic differences between people with and without food insecurity. PubMed, Embase, Scopus, and AGRICOLA were searched through August 2022 for studies describing food insecurity and metabolic markers in blood, urine, plasma, hair, or nails. The 78 studies included consisted of targeted assays quantifying lipids, dietary nutrients, heavy metals, and environmental xenobiotics as biochemical features associated with food insecurity. Among those biomarkers which were quantified in at least five studies, none showed a consistent association with food insecurity. Although three biomarkers of dietary quality have been assessed between food-insecure versus food-secure populations, no studies have utilized untargeted metabolomics to characterize patterns of small molecules that distinguish between these two populations. Further studies are needed to characterize the dietary quality profiles of individuals with and without food insecurity.

Food Insecurity and Micronutrient Deficiency in Adults: A Systematic Review and Meta-Analysis

Food insecurity is a public health problem as it affects a wide array of individuals in the population. It can be characterized by food deprivation, lack of essential nutrition, lack of dietary education, lack of adequate storage conditions, poor absorption, and poor overall nutrition. The relationship between food insecurity and micronutrient deficiency requires more effort to deepen and discuss the relationship. This systematic review aimed to evaluate the association between food insecurity and micronutrient deficiency in adults. The research was conducted according to PRISMA using the Medline/Pubmed, Lilacs/BVS, Embase, Web of Science, and Cinahl databases. Studies carried out with male and female adults were included, which investigated the correlation or association between food insecurity and the nutritional status of micronutrients. There were no publication year, country, or language restrictions. A total of 1148 articles were found, and 18 of these were included, carried out mainly on the American continent and with women. The most evaluated micronutrients were iron and vitamin A. Food insecurity was associated with nutrient deficiency in 89% (n = 16) of the studies. As a result of the meta-analysis, it was observed that there is a greater chance of anemia and low levels of ferritin among food insecure individuals. It is concluded that food insecurity is associated with micronutrient deficiency. Understanding these problems allows the creation of public policies capable of contributing to changes. Protocol registration: This review was registered on the PROSPERO-International Prospective Register of Systematic Reviews database-CRD42021257443.

Food security association with some risk factors of obesity-related diseases in Ardabil-Iran population

The aim of the study is the assessment of the food security status and its association with some risk factors of chronic obesity-related diseases in Ardabil-Iran population. METHODS: This cross-sectional study was done between 500 adults of Ardabil that were selected by random sampling from Persian cohort study participants, in January 2019. Food insecurity of study participants was measured using the United States Department of Agriculture 18-item questionnaire. Some risk factors of chronic diseases including fasting blood glucose, lipid profile, liver enzymes, and dietary information were measured on the day of the interview. To assess the association between variables the correlation and linear regression tests were used. RESULTS: Forty-eight and six percent of the study participants were food secure and 51.4% were in food insecurity status. There were a significant difference in weight, blood glucose, blood pressure, and serum triglyceride levels between the food security status groups (P <  0.05). The food insecurity score had significant association with participants, weight (p = 0.005,β= 1.66), serum triglycerides (p = 0.022,β= 0.027), body mass index (p = 0.003,β= 0.645) and fasting blood sugar (p = 0.0001,β= 0.664). CONCLUSION: About half of the participants were in food insecurity status. Food insecurity status can be associated with obesity and some risk factors of chronic obesity-related diseases. This problem requires main food policies to reduce food insecurity in the community.