For more than 50 years, the Food and Nutrition Board of the National Academy of Sciences has been reviewing nutrition research and defining nutrient requirements for healthy people, referred to as the Recommended Dietary Allowances (RDA). As new nutrition research is published, the importance of vitamins as vital nutrients is underscored, and new physiologic roles and applications to human health are examined and considered with regard to updating the RDA. Each year a substantial amount of new research is published on vitamins. This review examines recent research published on the importance of vitamin C with regard to general health.
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Background: Anticoagulant rodenticides (ARs) are a very effective tool to control rodent pest populations. Nevertheless, AR resistance has been documented worldwide. ARs block the cycle of vitamin K, leading to the death of the animal by internal bleeding: mutations in Vkorc1 gene can cause resistance.
View Article and Find Full Text PDFVitamin D Controversies in the Laboratory Medicine: A Review of Clinical Guidelines and Recommendations.
EJIFCC
December 2024
Clinical Analysis Department, Hospital Infanta Elena, Huelva, Spain.
A narrative review of the main guidelines and recommendations published from 2011 up to date about the status of vitamin D deficiency has been carried out. The objective of this review is to discuss the origin of the controversy about the status of this entity, as well as the evolution of the methodological aspects and clinical situations that require vitamin D screening. The results obtained indicate that the criteria defining vitamin D status, according to two studies published in 2011, the Institute of Medicine (IOM) recommendations and the Endocrine Society (ES) guidelines, regardless the affected population.
View Article and Find Full Text PDFVitamin D, acute respiratory infections, and Covid-19: The curse of small-size randomised trials. A critical review with meta-analysis of randomised trials.
PLoS One
January 2025
Department of Experimental Oncology, European Institute of Oncology, IRCCS, Milano, Italy.
Background: Randomised trials conducted from 2006 to 2021 indicated that vitamin D supplementation (VDS) was able to prevent severe COVID-19 and acute respiratory infections (ARI). However, larger randomised trials published in 2022 did not confirm the health benefits of VDS in COVID-19 patients.
Objective: To examine through a systematic review with meta-analysis the characteristics of randomised trials on VDS to COVID-19 patients and admission to intensive care unit (ICU), and of randomised trials on VDS for the prevention of ARI.
Role of preconception nutrition supplements in maternal anemia and intrauterine growth: a systematic review and meta-analysis of randomized controlled trials.
Syst Rev
January 2025
Department of Epidemiology, Mailman School of Public Health, Columbia University Irving Medical Center, New York, NY, USA.
Background: Impaired intrauterine growth, a significant global health problem, contributes to a higher burden of infant morbidity and mortality, mainly in resource-poor settings. Maternal anemia and undernutrition, two important causes of impaired intrauterine growth, are prioritized by global nutrition targets of 2030. We synthesized the evidence on the role of preconception nutrition supplements in reducing maternal anemia and improving intrauterine growth.
View Article and Find Full Text PDFSelective diet induced nutritional optic neuropathy in developmentally normal children.
Am J Ophthalmol Case Rep
March 2025
Department of Ophthalmology, Boston Children's Hospital, 300 Longwood Ave, Fegan 4, Boston, MA, 02115, USA.
Purpose: Nutritional deficiencies in developed countries are a rare but potentially intervenable cause of optic neuropathy in pediatric populations. To date, much of the literature on nutritional optic neuropathy has focused on children with developmental delay, however, a growing body of evidence supports other underreported risk factors.
Observations: We describe three pediatric patients with normal neurodevelopment, who presented with decreased vision and were subsequently found to have optic neuropathy attributed to vitamin deficiencies, predominantly vitamin B12.
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