Dietary vitamin D intake and muscle mass in older women. Results from a cross-sectional analysis of the EPIDOS study

2012 ◽  
Vol 17 (2) ◽  
pp. 119-124 ◽  
Author(s):  
Charlotte Dupuy ◽  
V. Lauwers-Cances ◽  
G. Abellan Van Kan ◽  
S. Gillette ◽  
A. -M. Schott ◽  
...  
Keyword(s):  
Vitamin D ◽  
Older Women ◽  
Muscle Mass ◽  
Dietary Vitamin ◽  
Cross Sectional ◽  
Vitamin D Intake ◽  
Cross Sectional Analysis ◽  
Sectional Analysis ◽  
Dietary Vitamin D

scholarly journals Association between vitamin D deficiency and exercise capacity in patients with CKD, a cross-sectional analysis

2020 ◽  
Author(s):  
Emma L Watson ◽  
Thomas J Wilkinson ◽  
Tom F O’Sullivan ◽  
Luke A Baker ◽  
Douglas W Gould ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Exercise Capacity ◽  
Muscle Mass ◽  
Ex Vivo ◽  
Muscle Size ◽  
Cross Sectional ◽  
Cross Sectional Analysis ◽  
Sectional Analysis

AbstractEvidence is growing for a role of vitamin D in regulating skeletal muscle mass, strength and functional capacity. Given the role the kidneys play in activating total vitamin D, and the high prevalence of vitamin D deficiency in Chronic Kidney Disease (CKD), it is possible that deficiency contributes to the low levels of physical function and muscle mass in these patients. This is a secondary cross-sectional analysis of previously published interventional study, with ex vivo follow up work. 34 CKD patients at stages G3b-5 (eGFR 25.5 ± 8.3ml/min/1.73m2; age 61 ± 12 years) were recruited, with a sub-group (n=20) also donating a muscle biopsy. Vitamin D and associated metabolites were analysed in plasma by liquid chromatography tandem-mass spectroscopy and correlated to a range of physiological tests of muscle size, function, exercise capacity and body composition. The effects of 1α,25(OH)2D3 supplementation on myogenesis and myotube size was investigated in primary skeletal muscle cells from vitamin D deficient donors. In vivo, there was no association between total or active vitamin D and muscle size or strength, but a significant correlation with was seen with the total form. Ex vivo, 1α,25(OH)2D3 supplementation reduced IL-6 mRNA expression, but had no effect upon proliferation, differentiation or myotube diameter. This early preliminary work suggests that vitamin D deficiency is not a prominent factor driving the loss of muscle mass in CKD, but may play a role in reduced exercise capacity.

scholarly journals High Prevalence of Vitamin D Inadequacy During Late Postpartum in Canadian Mothers

2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 790-790
Author(s):  
Sarah Montgomery ◽  
Angella Lee ◽  
Nasime Sarbar ◽  
Deborah Zibrik ◽  
Yvonne Lamers
Keyword(s):  
Vitamin D ◽  
British Columbia ◽  
Dietary Intake ◽  
Dietary Vitamin ◽  
Nutrient Deficiencies ◽  
Cross Sectional ◽  
Convenience Sample ◽  
Vitamin D Intake ◽  
Pregnancy And Postpartum ◽  
Dietary Vitamin D

Abstract Objectives To assess maternal dietary intake and adequacy at postpartum and to determine whether lifestyle characteristics and breastfeeding status are related to nutrient intakes. Methods We analyzed cross-sectional data from a convenience sample of 129 mothers at 18-mo postpartum, whose families were enrolled into a randomized toddler intervention trial, in the Lower Mainland, British Columbia, Canada. The Canadian Diet History Questionnaire II (C-DHQ II) was used to estimate usual dietary intake in the mothers during the preceding 12 months (i.e., between 6- to 18-mo postpartum). Implausible energy intakes were defined as <600 kcal/day or >3500 kcals/day, and excluded from analysis. Demographic and lifestyle characteristic data about the pregnancy and postpartum time period were collected using a questionnaire. Results Maternal mean (SD) age at birth was 33.5 (4.0) years and most women were of European (46%) or Asian (38%) ethnicity, and had Bachelor's degree or higher education (70%). About 75%, 88%, and 89% did not meet their dietary requirements (i.e., intake below the EAR) for fiber, potassium, and vitamin D intakes, from food only, respectively. Considering total dietary intake from food and supplements, the prevalence of dietary vitamin D inadequacy was 25%. Women of European ethnicity had higher vitamin D intake (median (IQR) in mg/1000kcal/day: 19.5 (7.26,101)) compared to Asian women (10.8 (3.87, 21.1); P < 0.05). Dietary vitamin D intake was higher in breastfeeding (i.e., providing breastmilk as primary milk source, i.e., ³2 times/day, to their 18-mo old toddlers) compared to non- or occasionally breastfeeding mothers (20.0 (10.5, 61.1) versus 14.9 (4.28, 26.7) mg/1000kcal/day; P < 0.05). Conclusions While most Canadian mothers in this sample met the EARs for most nutrients, the prevalence of dietary inadequacy was very high for vitamin D, potassium, and fiber. Some population groups may be especially at risk of developing nutrient deficiencies in this period of life characterized by postpartum recovery and transition; targeted public health strategies may be needed to address these deficiencies. Funding Sources This study is supported by The University of British Columbia, and the British Columbia Children's Hospital Research Institute, Canada, and is funded by Société des Produits Nestlé S.A.

scholarly journals Vitamin D Intake in Slovenian Adolescents, Adults, and the Elderly Population

Nutrients ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 3528
Author(s):  
Maša Hribar ◽  
Hristo Hristov ◽  
Živa Lavriša ◽  
Barbara Koroušić Seljak ◽  
Matej Gregorič ◽  
...  
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
The Elderly ◽  
Dietary Vitamin ◽  
Food Groups ◽  
Cross Sectional ◽  
Vitamin D Intake ◽  
Study Results ◽  
Using Data ◽  
Dietary Vitamin D

Vitamin D is involved in calcium and phosphorus metabolism, and is vital for numerous bodily functions. In the absence of sufficient UV-B light-induced skin biosynthesis, dietary intake becomes the most important source of vitamin D. In the absence of biosynthesis, the recommended dietary vitamin D intake is 10–20 µg/day. Major contributors to dietary vitamin D intake are the few foods naturally containing vitamin D (i.e., fish), enriched foods, and supplements. The present study aimed to estimate the vitamin D intake in Slovenia, to identify food groups that notably contribute to vitamin D intake, and to predict the effects of hypothetical mandatory milk fortification. This study was conducted using data collected by the national cross-sectional food consumption survey (SI.Menu) in adolescents (n = 468; 10–17 years), adults (n = 364; 18–64 years), and the elderly (n = 416; 65–74 years). Data collection was carried out between March 2017 and April 2018 using the EU Menu Methodology, which included two 24-hour recalls, and a food propensity questionnaire. Very low vitamin D intakes were found; many did not even meet the threshold for very low vitamin D intake (2.5 µg/day). Mean daily vitamin D intake was 2.7, 2.9, and 2.5 µg in adolescents, adults, and the elderly, respectively. Daily energy intake was found to be a significant predictor of vitamin D intake in all population groups. In adolescents and adults, sex was also found to be a significant predictor, with higher vitamin D intake in males. The study results explained the previously reported high prevalence of vitamin D deficiency in Slovenia. An efficient policy approach is required to address the risk of vitamin D deficiency, particularly in vulnerable populations.

scholarly journals Validity of an FFQ assessing the vitamin D intake of young Serbian women living in a region without food fortification: the method of triads model

2015 ◽  
Vol 19 (3) ◽  
pp. 437-445 ◽  
Author(s):  
Marija Djekic-Ivankovic ◽  
Hope A Weiler ◽  
Marina Nikolic ◽  
Agnes Kadvan ◽  
Mirjana Gurinovic ◽  
...  
Keyword(s):  
Vitamin D ◽  
Correlation Coefficients ◽  
Cross Sectional Study ◽  
Reproductive Age ◽  
Dietary Vitamin ◽  
Food Fortification ◽  
Anthropometric Parameters ◽  
Cross Sectional ◽  
Vitamin D Intake ◽  
Dietary Vitamin D

AbstractObjectiveThe objective of the present study was to examine the external validity of an FFQ designed to estimate dietary vitamin D intake compared with a plasma biomarker and three repeated 24 h dietary recalls in women of reproductive age in Serbia, where there is no exposure to food fortified with vitamin D. The method of triads was applied.DesignIn a cross-sectional study, 422 women completed the Women and Reproductive Health FFQ (WRH-FFQ) during the winter months. From a representative subgroup (n 44), three 24 h dietary recalls and anthropometric parameters were collected as well as a fasting blood sample for vitamin D biomarker analyses. Correlation coefficients were calculated between each of the dietary methods. Validity coefficients, as a correlation between the measured and estimated ‘true’ exposure, were calculated using the method of triads. Bland–Altman plots were also constructed.SettingThree major universities in Serbia.SubjectsHealthy young women (n 422) aged 18–35 years.ResultsThe WRH-FFQ estimate of vitamin D intake for all participants was 4·0 (sd 3·3) µg/d and 3·1 (sd 2·3) µg/d for the subgroup. Bland–Altman plots for these intakes showed high agreement. Validity coefficients for the FFQ, 24 h recall and biomarker were ρQI=0·847 (95 % CI 0·564, 0·928), ρRI=0·810 (95 % CI 0·537, 0·997) and ρBI=0·499 (95 % CI 0·190, 0·840), while the correlation coefficients were 0·686, 0·422 and 0·404.ConclusionsThe FFQ applied in the present study is a valid tool for assessing dietary vitamin D intake in women living in Serbia, a region without mandatory vitamin D food fortification.

scholarly journals Relationship between dietary vitamin D and serum 25-hydroxyvitamin D levels in Portuguese adolescents

2017 ◽  
Vol 21 (2) ◽  
pp. 325-332
Author(s):  
Maria Cabral ◽  
Joana Araújo ◽  
Carla Lopes ◽  
Henrique Barros ◽  
João Tiago Guimarães ◽  
...  
Keyword(s):  
Vitamin D ◽  
Food Sources ◽  
Dietary Vitamin ◽  
Cross Sectional ◽  
Hydroxyvitamin D ◽  
Vitamin D Intake ◽  
Significant Difference ◽  
25 Hydroxyvitamin D ◽  
Dietary Vitamin D ◽  
Portuguese Adolescents

AbstractObjectiveTo understand the relationship between vitamin D intake and serum 25-hydroxyvitamin D (25(OH)D) levels in a sample of Portuguese adolescents.DesignCross-sectional evaluation carried out in the 2003/2004 school year. Vitamin D intake was assessed by an FFQ and 25(OH)D was measured in a fasting blood sample.SettingPublic and private schools in Porto, Portugal.SubjectsAdolescents aged 13 years (n 521) enrolled at school (EPITeen cohort).ResultsBoth mean (sd) intake and serum 25(OH)D level were far below the recommended, 4·47 (2·49) µg/d and 16·5 (5·7) ng/ml, respectively. A significant difference in serum level was found according to season, with lower values in winter than summer (14·8 (4·6) v. 17·3 (5·9) ng/ml, P<0·001). Vitamin D intake was weakly correlated with serum 25(OH)D (r=0·056, P=0·203).ConclusionsDietary vitamin D and serum 25(OH)D levels were positively but weakly correlated and the error was higher among those with higher serum 25(OH)D concentration. Our results support the need for strategies that promote increase of the most important food sources of vitamin D to reduce the high prevalence of low vitamin D status.

Association of vitamin D with incident glaucoma: findings from the Women’s Health Initiative

2021 ◽  
pp. jim-2020-001645
Author(s):  
Laura D Carbone ◽  
Karen Johnson ◽  
Joseph C Larson ◽  
Fridtjof Thomas ◽  
Jean Wactawski-Wende ◽  
...  
Keyword(s):  
Vitamin D ◽  
Women's Health ◽  
Postmenopausal Women ◽  
Serum Levels ◽  
Dietary Vitamin ◽  
Health Initiative ◽  
Vitamin D Intake ◽  
Vitamin D Supplements ◽  
Dietary Vitamin D ◽  
The Women’S Health Initiative

The relationship between vitamin D and glaucoma is controversial. The objective of this study was to examine women from the Women’s Health Initiative (WHI) to determine if there is an association between vitamin D and incident glaucoma in postmenopausal women. We examined the association between dietary vitamin D intake, vitamin D supplements and serum 25 hydroxyvitamin D (25(OH)D) levels and the risk of developing glaucoma. 143,389 postmenopausal women from the WHI including a subset with serum 25(OH) D measurements were examined to determine the association of dietary, supplemental and serum levels of vitamin D to the development of glaucoma. Dietary intakes of vitamin D, use of vitamin D supplements and serum levels of 25(OH) D were predictors examined for the main outcome of incident glaucoma. In multivariable models adjusted for demographic, clinical variables and medication use, dietary vitamin D, vitamin D supplements, total vitamin D intake (diet plus supplements) and serum 25 (OH) D measurements were not significantly associated with incident glaucoma. In the CaD placebo-controlled intervention clinical trial, there was also no association in the active intervention arm with glaucoma. We conclude that dietary vitamin D intake, supplements and serum levels are not significantly related to the risk of developing glaucoma in postmenopausal women.

Dietary vitamin D intake, cardiovascular disease and cardiometabolic risk factors: a sex‐based analysis from the ATTICA cohort study

2020 ◽  
Vol 33 (5) ◽  
pp. 708-717
Author(s):  
M. Kouvari ◽  
D. B. Panagiotakos ◽  
C. Chrysohoou ◽  
M. Yannakoulia ◽  
E. N. Georgousopoulou ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Vitamin D ◽  
Cohort Study ◽  
Cardiometabolic Risk ◽  
Cardiometabolic Risk Factors ◽  
Dietary Vitamin ◽  
Vitamin D Intake ◽  
Dietary Vitamin D
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