Association Between Vitamin D Intake and Vitamin D Status with Semen Parameters Among Young Men in Southern Spain

2021 ◽  
pp. 337-338
Author(s):  
Anna Rudnicka ◽  
Evdochia Adoamnei ◽  
Carrie Nielson ◽  
José A. Noguera-Velasco ◽  
Jaime Mendiola ◽  
...  
Keyword(s):  
Vitamin D ◽  
Young Men ◽  
Southern Spain ◽  
Semen Parameters ◽  
Vitamin D Status ◽  
Vitamin D Intake

scholarly journals Vitamin D Serum Levels in the UK Population, including a Mathematical Approach to Evaluate the Impact of Vitamin D Fortified Ready-to-Eat Breakfast Cereals: Application of the NDNS Database

Nutrients ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1868
Author(s):  
Wim Calame ◽  
Laura Street ◽  
Toine Hulshof
Keyword(s):  
Vitamin D ◽  
Daily Intake ◽  
Serum Levels ◽  
Vitamin D Status ◽  
Nutrition Survey ◽  
Breakfast Cereals ◽  
Vitamin D Intake ◽  
The Uk ◽  
The Impact ◽  
The Relationship

Vitamin D status is relatively poor in the general population, potentially leading to various conditions. The present study evaluates the relationship between vitamin D status and intake in the UK population and the impact of vitamin D fortified ready-to-eat cereals (RTEC) on this status via data from the National Diet and Nutrition Survey (NDNS: 2008–2012). Four cohorts were addressed: ages 4–10 (n = 803), ages 11–18 (n = 884), ages 19–64 (n = 1655) and ages 65 and higher (n = 428). The impact of fortification by 4.2 μg vitamin D per 100 g of RTEC on vitamin D intake and status was mathematically modelled. Average vitamin D daily intake was age-dependent, ranging from ~2.6 (age range 4–18 years) to ~5.0 μg (older than 64 years). Average 25(OH)D concentration ranged from 43 to 51 nmol/L, the highest in children. The relationship between vitamin D intake and status followed an asymptotic curve with a predicted plateau concentration ranging from 52 in children to 83 nmol/L in elderly. The fortification model showed that serum concentrations increased with ~1.0 in children to ~6.5 nmol/L in the elderly. This study revealed that vitamin D intake in the UK population is low with 25(OH)D concentrations being suboptimal for general health. Fortification of breakfast cereals can contribute to improve overall vitamin D status.

scholarly journals Insufficient autumn vitamin D intake and low vitamin D status in 7-year-old Icelandic children

2014 ◽  
Vol 18 (2) ◽  
pp. 208-217 ◽  
Author(s):  
Adda Bjarnadottir ◽  
Asa Gudrun Kristjansdottir ◽  
Hannes Hrafnkelsson ◽  
Erlingur Johannsson ◽  
Kristjan Thor Magnusson ◽  
...  
Keyword(s):  
Vitamin D ◽  
Cardiorespiratory Fitness ◽  
Sunlight Exposure ◽  
Vitamin D Status ◽  
Blood Samples ◽  
Hydroxyvitamin D ◽  
Vitamin D Intake ◽  
School Based ◽  
25 Hydroxyvitamin D ◽  
Vitamin D Supplements

AbstractObjectiveThe aim was to investigate autumn vitamin D intake and status in 7-year-old Icelanders, fitting BMI and cardiorespiratory fitness as predictors.DesignThree-day food records and fasting blood samples were collected evenly from September to November, and cardiorespiratory fitness was measured with an ergometer bike. Food and nutrient intakes were calculated, and serum 25-hydroxyvitamin D (s-25(OH)D) and serum parathyroid hormone were analysed. Suboptimal vitamin D status was defined s-25(OH)D <50 nmol/l, and deficient status as s-25(OH)D <25 nmol/l.SettingSchool-based study in Reykjavik, Iceland in 2006.SubjectsOf the 7-year-olds studied (n 265), 165 returned valid intake information (62 %), 158 gave blood samples (60 %) and 120 gave both (45 %).ResultsRecommended vitamin D intake (10 μg/d) was reached by 22·4 % of the children and 65·2 % had s-25(OH)D <50 nmol/l. Median s-25(OH)D was higher for children taking vitamin D supplements (49·2 nmol/l v. 43·2 nmol/l, respectively; P < 0·0 0 1). Median s-25(OH)D was lower in November (36·7 nmol/l) than in September (59·9 nmol/l; P < 0·001). The regression model showed that week of autumn accounted for 18·9 % of the variance in s-25(OH)D (P < 0·001), vitamin D intake 5·2 % (P < 0·004) and cardiorespiratory fitness 4·6 % (P < 0·005).ConclusionsA minority of children followed the vitamin D recommendations and 65 % had suboptimal vitamin D status during the autumn. Week of autumn was more strongly associated with vitamin D status than diet or cardiorespiratory fitness, which associated with vitamin D status to a similar extent. These results demonstrate the importance of sunlight exposure during summer to prevent suboptimal vitamin D status in young schoolchildren during autumn in northern countries. An increased effort is needed for enabling adherence to the vitamin D recommendations and increasing outdoor activities for sunlight exposure.

scholarly journals Recommended intakes of vitamin D to optimise health, associated circulating 25-hydroxyvitamin D concentrations, and dosing regimens to treat deficiency: workshop report and overview of current literature

2015 ◽  
Vol 4 ◽  
Author(s):  
Michiel G. J. Balvers ◽  
Elske M. Brouwer-Brolsma ◽  
Silvia Endenburg ◽  
Lisette C. P. G. M. de Groot ◽  
Frans J. Kok ◽  
...  
Keyword(s):  
Vitamin D ◽  
The Netherlands ◽  
Vitamin D Deficiency ◽  
Vitamin D Status ◽  
Hydroxyvitamin D ◽  
Vitamin D Intake ◽  
Skeletal Disease ◽  
Health Council ◽  
Dosing Regimens ◽  
25 Hydroxyvitamin D

AbstractVitamin D is a fat-soluble hormone that traditionally has been linked to bone health. Recently, its involvement has been extended to other (extra-skeletal) disease areas, such as cancer, CVD, energy metabolism and autoimmune diseases. Vitamin D deficiency is a worldwide problem, and several recommendation-setting bodies have published guidelines for adequate vitamin D intake and status. However, recommendations from, for example, the Health Council of the Netherlands do not provide advice on how to treat vitamin D deficiency, a condition that is often encountered in the clinic. In addition, these recommendations provide guidelines for the maintenance of ‘minimum levels’, and do not advise on ‘optimum levels’ of vitamin D intake/status to further improve health. The NutriProfiel project, a collaboration between the Gelderse Vallei Hospital (Ede, the Netherlands) and the Division of Human Nutrition of Wageningen University (Wageningen, the Netherlands), was initiated to formulate a protocol for the treatment of vitamin deficiency and for the maintenance of optimal vitamin D status. To discuss the controversies around treatment of deficiency and optimal vitamin D status and intakes, a workshop meeting was organised with clinicians, scientists and dietitians. In addition, a literature review was conducted to collect recent information on optimal intake of vitamins, their optimal circulating concentrations, and effective dosing regimens to treat deficiency. This information has been translated into the NutriProfiel advice, which is outlined in this article.

scholarly journals A Narrative Review of The Role of Foods as Dietary Sources of Vitamin D of Ethnic Minority Populations with Darker Skin: The Underestimated Challenge

Nutrients ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 81 ◽  
Author(s):  
Jing Guo ◽  
Julie A. Lovegrove ◽  
David I. Givens
Keyword(s):  
Vitamin D ◽  
Ethnic Minority ◽  
Ultraviolet B ◽  
Dietary Vitamin ◽  
Minority Populations ◽  
Vitamin D Status ◽  
Vitamin D Intake ◽  
Ethnic Minority Populations ◽  
Dietary Vitamin D ◽  
Lower Vitamin

In recent years, vitamin D deficiency has attracted attention worldwide. Especially many ethnic minority populations are considered at high-risk of vitamin D deficiency, owing to a lesser ability to synthesis vitamin D from sunlight (ultraviolet B), due to the skin pigment melanin and/or reduced skin exposure due to coverage required by religious and cultural restrictions. Therefore, vitamin D intake from dietary sources has become increasingly important for many ethnic minority populations to achieve adequate vitamin D status compared with the majority of the population. The aim of the study was critically evaluate the vitamin D intake and vitamin D status of the ethnic minority populations with darker skin, and also vitamin D absorption from supplements and ultraviolet B. Pubmed, Embaase and Scopus were searched for articles published up to October 2018. The available evidence showed ethnic minority populations generally have a lower vitamin D status than the majority populations. The main contributory food sources for dietary vitamin D intake were different for ethnic minority populations and majority populations, due to vary dietary patterns. Future strategies to increase dietary vitamin D intake by food fortification or biofortification needs to be explored, not only for the majority population but more specifically for ethnic minority populations who are generally of lower vitamin D status.

Determinants of Postpartum Vitamin D Status in the Caucasian Mother-Offspring Pairs at a Latitude of 52°N: A Cross-Sectional Study

2015 ◽  
Vol 67 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Justyna Czech-Kowalska ◽  
Dariusz Gruszfeld ◽  
Maciej Jaworski ◽  
Dorota Bulsiewicz ◽  
Julita Latka-Grot ◽  
...  
Keyword(s):  
Vitamin D ◽  
Cord Blood ◽  
Sun Exposure ◽  
Maternal Blood ◽  
Cross Sectional Study ◽  
Lower Percentage ◽  
Season Of Birth ◽  
Vitamin D Status ◽  
Cross Sectional ◽  
Vitamin D Intake

Background: High prevalence of vitamin D deficiency in pregnancy is recorded. Aim: To establish determinants of postpartum 25-hydroxyvitamin D (25(OH)D) levels on mothers and offspring. Methods: 25(OH)D level was measured in cord blood and maternal blood collected ≤3 weeks postpartum. Maternal socioeconomic status, vitamin D intake, sun exposure during pregnancy and maternal and neonatal fat mass (FM; dual X-ray absorptiometry) were assessed within 3 weeks postpartum. Results: A total of 174 mother-offspring pairs were enrolled. Maternal 25(OH)D <20 ng/ml was seen in 32 (51%) of summer and 82 (74%) of winter deliveries. Women with 25(OH)D <20 ng/ml had a 2-fold lower percentage of vitamin D intake of ≥800 IU/day than women with 25(OH)D ≥20 ng/ml (p = 0.02). FM (%) was comparable between groups (p > 0.05). Multiple regression analysis revealed the delivery season, prenatal vitamin D intake ≥800 IU/day and duration of supplementation to be the determinants of maternal 25(OH)D level (R2 = 0.26, p < 0.001). Maternal 25(OH)D level, season of birth and duration of maternal supplementation explained 83% of the variance in cord blood 25(OH)D level (R2 = 0.83, p < 0.001). Conclusions: The key determinants of higher maternal vitamin D status were the summer-autumn season of delivery and prenatal use of ≥800 IU/day of vitamin D. The cord blood 25(OH)D level was mainly determined by maternal 25(OH)D level and season of birth.

scholarly journals Vitamin D Status in Montréal Preschoolers Is Satisfactory Despite Low Vitamin D Intake

2012 ◽  
Vol 143 (2) ◽  
pp. 154-160 ◽  
Author(s):  
Jessy El Hayek ◽  
Thu Trang Pham ◽  
Sarah Finch ◽  
Tom J. Hazell ◽  
Sonia Jean-Philippe ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Status ◽  
Vitamin D Intake

Lower vitamin D status in obese compared with normal-weight women despite higher vitamin D intake in early pregnancy

2015 ◽  
Vol 34 (5) ◽  
pp. 892-898 ◽  
Author(s):  
Therese Karlsson ◽  
Louise Andersson ◽  
Aysha Hussain ◽  
Marja Bosaeus ◽  
Nina Jansson ◽  
...  
Keyword(s):  
Vitamin D ◽  
Early Pregnancy ◽  
Normal Weight ◽  
Vitamin D Status ◽  
Vitamin D Intake ◽  
Lower Vitamin

scholarly journals Inadequate vitamin D status is associated with lower food plus supplemental intake of vitamin D in children of South Asian ethnicity living in the National Capital Region of Canada

2021 ◽  
Author(s):  
Stephen Brooks ◽  
W.M. Nimal Ratnayake ◽  
Isabelle Rondeau ◽  
Eleonora Swist ◽  
Kurtis Sarafin ◽  
...  
Keyword(s):  
Vitamin D ◽  
South Asian ◽  
Vitamin D Status ◽  
National Capital Region ◽  
Total Vitamin ◽  
Serum 25Ohd ◽  
Vitamin D Intake ◽  
Asian Children ◽  
National Capital ◽  
Lower Vitamin

Vitamin D status, measured in a Vitamin D Standardization Program certified laboratory, was assessed among children of South Asian and European ethnicity living in the national capital region of Canada to explore factors that may account for inadequate status. Demographic information, dietary and supplemental vitamin D over 30 d prior to measurement of serum 25-hydroxyvitamin D (25OHD), and anthropometry were measured (age 6.0-18.9 y; n=58/group; Feb-Mar 2015). No group related differences in age, height and BMI Z-scores or in food vitamin D intakes were observed. Standardized serum 25OHD was lower in South Asian children (mean ± SD: 39.0 ± 16.8 nmol/L vs European: 58.4 ± 15.8 nmol/L). A greater proportion of South Asian children had serum 25OHD < 40 nmol/L (56.9 vs 8.6%, P < 0.0001) and fewer took supplements (31 vs 50%, P = 0.0389). In a multi-factorial model (r2 = 0.54), lower vitamin D status was associated with overweight/obese BMI and older age (14-18 y); no interaction with ethnicity was observed. Lower vitamin D status was associated with lower total vitamin D intake only in South Asian children. This study reinforces the importance of public health actions towards meeting vitamin D intake recommendations among those of high-risk deficiency. Novelty: • A higher proportion of South Asian vs. European children had inadequate vitamin D status. • Lower vitamin D status was associated with a BMI in the overweight/obese range. • Lower vitamin D status was associated with lower total vitamin D intake in South Asian but not European children.

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