scholarly journals Interaction between diet and sunlight exposure on vitamin D status in premenopausal women living in Southern England: preliminary analysis of the Vitamin D, Food Intake, Nutrition and Exposure to Sunlight in Southern England (D-FINES) Study

2010 ◽  
Vol 69 (OCE1) ◽  
Author(s):  
A. L. Darling ◽  
D. P. Lovell ◽  
P. A. Lee ◽  
W. T. K. Lee ◽  
J. L. Berry ◽  
...  
Keyword(s):  
Vitamin D ◽  
Food Intake ◽  
Preliminary Analysis ◽  
Premenopausal Women ◽  
Sunlight Exposure ◽  
Vitamin D Status ◽  
Southern England

scholarly journals Knowledge and attitudes about vitamin D and sunlight exposure in premenopausal women living in Jeddah, and their relationship with serum vitamin D levels

2021 ◽  
Vol 40 (1) ◽  
Author(s):  
Tahani A. Zareef ◽  
Robert T. Jackson
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Odds Ratio ◽  
Premenopausal Women ◽  
Sun Exposure ◽  
Sunlight Exposure ◽  
Vitamin D Status ◽  
Saudi Women ◽  
Vitamin D Intake ◽  
Insufficient Knowledge

Abstract Background Saudi women are at risk of vitamin D deficiency because they are fully covered by traditional clothing and because of their indoor lifestyle. The latest national study reported that vitamin D deficiency (serum 25(OH)D < 50 nmol/L) affects 72% of young Saudi women. Because little information is available regarding knowledge on vitamin D, attitudes toward sun exposure, and the vitamin D status of premenopausal women in Jeddah, more research is necessary in order to develop effective intervention programs. The purpose of this study is to explore how the relationship between knowledge of vitamin D and attitudes about sun exposure affect the serum 25(OH)D levels in premenopausal Saudi women. Methods This cross-sectional study included 257 women aged 20–50 years attending the primary care clinic in Jeddah, Saudi Arabia. Participants completed questionnaires about socio-demographics, dietary vitamin D intake, attitudes toward sun exposure, and were tested on their knowledge of vitamin D. Serum 25(OH)D was evaluated using chemiluminescent microparticle immunoassay. Results Although 99% of participants had heard of vitamin D and 91% knew that sunlight exposure is a primary source of vitamin D, they also expressed the feeling of having insufficient knowledge regarding vitamin D sources. Furthermore, the majority of participants had negative attitudes toward sun exposure. High fish consumption was associated with a higher level of knowledge regarding vitamin D. The binary logistic regression indicated that low levels of knowledge about vitamin D were associated with low education levels (odds ratio = 0.397, 95% CI = [0.206, 0.765], p = 0.019) and with being married (odds ratio = 0.522, 95% CI = [0.281, 0.971], p = 0.04). In addition, spending time outside in the sun was significantly associated with increased serum 25(OH)D levels (p = 0.006), and the wearing of colored abaya was significantly associated with increased serum 25(OH)D levels (p = 0.008). Conclusion Suboptimal vitamin D status and insufficient knowledge of vitamin D intake sources are common in premenopausal women in Jeddah. Based on this data, health professionals could provide medical intervention to the most vulnerable female patients, as well as offer clear guidelines and information to the general public.

scholarly journals Vitamin D status in the tropics: Is sunlight exposure the main determinant?

2018 ◽  
Vol 43 (4) ◽  
pp. 428-434 ◽  
Author(s):  
M. M. Mendes ◽  
K. H. Hart ◽  
P. B. Botelho ◽  
S. A. Lanham-New
Keyword(s):  
Vitamin D ◽  
Sunlight Exposure ◽  
Vitamin D Status ◽  
Main Determinant ◽  
The Tropics

scholarly journals Vitamin D status is unaltered by mild weight reduction in obese premenopausal women

2008 ◽  
Vol 22 (S1) ◽  
Author(s):  
Catherine Ann Peterson ◽  
Susan Ring ◽  
Joanne Loethen ◽  
R. Scott Rector ◽  
Tom R. Thomas ◽  
...  
Keyword(s):  
Vitamin D ◽  
Weight Reduction ◽  
Premenopausal Women ◽  
Vitamin D Status

scholarly journals Hubungan Paparan Sinar Matahari, Status Gizi, dan Asupan Makan terhadap Kadar Vitamin D Anak dan Remaja Penderita Diabetes Mellitus Tipe 1

2021 ◽  
Vol 5 (1) ◽  
pp. 41
Author(s):  
Inggita Kusumastuty ◽  
Dian Handayani ◽  
Harjoedi Adji Tjahjono ◽  
Elsa Permata Sari ◽  
Silvy Kartika Rahayuningtyas ◽  
...  
Keyword(s):  
Vitamin D ◽  
Type 1 Diabetes ◽  
Food Intake ◽  
Nutritional Status ◽  
Children And Adolescents ◽  
Vitamin D Deficiency ◽  
Protein Intake ◽  
Sunlight Exposure ◽  
Vitamin D Levels

Background: Previous research state the correlation between vitamin D deficiency and Type 1 diabetes. The deficiency of Vitamin D is caused by vitamin D intake, sunlight exposure, or nutritional status. Indonesia, as a tropical country, is close to the equator and receives sunlight all year long. Little research has been done on vitamin D levels in children and adolescents with Type 1 Diabetes in Indonesia.Objective: The study aims to determine the relationship among sunlight exposure, nutritional status, food intake, and vitamin D levels in children and adolescents with Type 1 Diabetes.Methods: The study design was cross-sectional with a sample size of 31 children and adolescents aged 5-19 years. Sunlight exposure data were collected using the Sun Exposure Questionnaire form, nutritional status o BMI/age data were using the WHO Anthro, food intake data were using the Semi-Quantitative Food Frequency Questioner, and vitamin D level data were using the ELISA method. Statistical analysis was conducted by using SPSS Version 21 with Pearson and Spearman correlation test.Results: All respondents showed vitamin D deficiency. Most respondents had low sunlight exposure and nutritional status in the normoweight category. The majority of respondents had good energy and protein intake, excess fat, low carbohydrates, and low vitamin D and calcium.Conclusion:There is a positive relationship between sunlight exposure and vitamin D level (p = 0.001, r = 0.627). However, there is no relationship among nutritional status, protein intake, fat, carbohydrates, vitamin D and calcium on the level of vitamin D (p = 0.409; p = 0.240; p = 0.311; p = 0.822; p = 0.231; 0.382).

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.

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