نتایج جستجو برای: vitamin d fortified food
تعداد نتایج: 890498 فیلتر نتایج به سال:
Vitamin A plays an essential role in animal biology and has negative effects associated with both hypo- and hypervitaminosis A. Many notable interventions are being done globally to eliminate vitamin A deficiency, including supplementation, fortification, and biofortification. At the same time, it is important to monitor vitamin A status in nations where preformed vitamin A intake is high becau...
Vitamin D comprises a group of fat-soluble pro-hormones, obtained from sun exposure, food, and supplements, and it must undergo two hydroxylation reactions to be activated in the body. Several studies have shown the role of vitamin D in mineral metabolism regulation, especially calcium, phosphorus, and bone metabolism. Some factors such as inadequate vitamin intake and liver or kidney disorders...
Background: Vitamin D plays critical role in the development and bone stability, cell proliferation and differentiation. The aim of this study was to determine the serum levels of vitamin D and its affecting factors in infants aged 2 to 6 years in Kermanshah. Methods: This cross-sectional descriptive study was performed in 32 health centers of Kermanshah on 389 children from 2 to 6 age, betwee...
The dietary intake of vitamin D is currently below the recommended intake of 10-20μg vitamin D/day. Foods with increased content of vitamin D or new products with enhanced vitamin D are warranted. Light-emitting diodes (LEDs) are a potential new resource in food production lines. In the present study the exposure conditions with ultraviolet (UV) LEDs were systematically investigated in the wave...
In Iran, the last National Nutrition and Dietary Survey [1] showed that about 80% of Iranians do not meet the estimated average requirement for calcium. While foods are not generally fortified in Iran, dietary supplement may be a convenient way to prevent nutritional deficiency in high-risk population groups including the elderly [2, 3]. There is however, no data on supplement usage by older ad...
Background & Objectives: Multiple Sclerosis (MS) is the most prevalent autoimmune disease of the nervous system in young adults. There are currently more than 30000 cases in Iran and the number is increasing everyday.The objective of this study was to measure the amount of vitamin and mineral intake in MS patients and to compare it with reference values. Methods: We randomly selected 108 re...
In this issue of The Journal of Nutrition, Bodnar et al. (1) provide compelling evidence that 1) pregnant women and their neonates living in the northern U.S. are at risk of vitamin D deficiency, 2) this problem is worse for blacks than whites, 3) seasonal variation contributes little to vitamin D status among black women and their neonates, and 4) current formulations of prenatal vitamin suppl...
BACKGROUND Phylloquinone, found in dark-green vegetables and certain plant oils, is the primary dietary source of the fat-soluble vitamin K. Limited data suggest that the relative bioavailability of phylloquinone from vegetables is lower than that from a supplement. This finding is relevant to the maintenance of optimal vitamin K status. OBJECTIVE The objective of this study was to compare, i...
The objectives of this study were to investigate the status of vitamin D in Korean adolescents and to determine the association between serum 25-hydroxyvitamin D (25(OH)D) concentration and consumption frequencies of vitamin D food sources by season (June to November and December to May). The subjects were 1,579 adolescents aged 12-18 years participating in the 2008-2009 Korean National Health ...
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