scholarly journals NUTRITIONAL STRATEGIES OF SLOVENIAN NATIONAL JUNIOR SWIMMING TEAM

2018 ◽  
Vol 9 (1) ◽  
pp. 15-34
Author(s):  
Vesna Simič ◽  
Nina Mohorko
Keyword(s):  
Vitamin D ◽  
Saturated Fat ◽  
Sports Nutrition ◽  
Fat Intake ◽  
Iron Intake ◽  
Omega 3 ◽  
Supplement Use ◽  
Vitamin D Intake ◽  
Nutritional Strategies ◽  
Competitive Swimmers

Purpose: The purpose of our study was to assess the nutritional strategies of Slovenian national junior swimming team and compare them with recommendations of clinical sports nutrition. Competitive young swimmers namely have increased energy and nutrient needs compared to general adolescents due to frequent and intense training. Despite some physiological differences from adults, adult sports nutrition recommendations for macronutrients apply to them. Further, literature reports iron, calcium, and vitamin D intake as frequently inadequate.Methods: Nutritional strategies of 19 members of Slovenian national junior swimming team were assessed retrospectively through 3-day food and activity diaries, questionnaires, anthropometric data including bioimpedance analysis. Energy availability (EA), macronutrient intake and timing, iron, calcium and vitamin D intakes, hydration, consumption of sports food and dietary supplement use were evaluated.Results: EA in some of male swimmers and in majority of  female swimmers was lower than recommended. Carbohydrate intake was adequate in male swimmers and two thirds of female swimmers. Although average protein intake exceeded the upper recommended limit, some  female swimmers did not meet the lower recommended intake limit. Total fat intake was lower than recommended, with saturated fat intake on the upper recommended level. Calcium and iron intake in male swimmers exceeded recommended values, while female swimmers had lower calcium intake than recommended and some had lower iron intake, too. Vitamin D intake was low in all swimmers. Meal timing was adequate in majority of swimmers, who often reached for dietary supplements, mostly omega 3 fatty acids, multivitamins, and magnesium.Conclusions: Low EA in young competitive swimmers is of concern. More successful, personalised nutrition strategies for young competitive swimmers, focusing on higher energy intake and healthy food choices, would contribute to the preservation of their health and development into top performers.

scholarly journals Assessment of Dietary Intake, Body Composition and Sports Nutrition Knowledge of NCAA Division I Female Collegiate Volleyball Players

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1751-1751
Author(s):  
Jessica Danh ◽  
Anita Nucci ◽  
J Andrew Doyle ◽  
Rafaela Feresin
Keyword(s):  
Vitamin D ◽  
Body Composition ◽  
Ncaa Division I ◽  
Nutrition Knowledge ◽  
Sports Nutrition ◽  
Division I ◽  
Fat Intake ◽  
Vitamin D Intake ◽  
Funding Sources ◽  
Volleyball Players

Abstract Objectives To assess nutritional intake, body composition and sports nutrition knowledge of NCAA Division I female volleyball players. Methods Nutritional intake was assessed using three-day food records. Daily average energy, carbohydrate, protein, fat, and specific vitamins and minerals intakes were analyzed using Food Processor 11.1. These values were compared to the recommendations from the American College of Sports Medicine (ACSM). Sports nutrition knowledge was assessed using an 87-question validated nutrition for sports knowledge questionnaire (NSKQ). Athletes were also asked to state their sources for nutrition knowledge. Body composition was assessed using bioelectrical impedance analysis. Descriptive data (mean ± SD) and Pearson correlation coefficients (r) were calculated using SPSS 26.0 with significance set at P ≤ 0.05. Results Fourteen female volleyball players (age: 19.6 ± 1.3 y, height: 174.9 ± 8.2 cm, weight: 73.2 ± 8.5 kg, BMI: 24.1 ± 2.5 kg/m2; body fat: 25.2 ± 3.4%) completed the study. Athletes’ mean energy intake was 24.7 ± 6.4 kcal/kg BW/day, while carbohydrate, protein and fat intake were 2.9 ± 0.92, 1.3 ± 0.44, and 0.88 ± 0.28 g/kg BW/day, respectively. Vitamin D intake was 137.1 ± 90.7 IU/day and calcium intake was 673.4 ± 352.5 mg/day. Energy and carbohydrate intake were lower than the ACSM recommendations (37–41 kcal/kg BW/day and 6–10 g/kg BW/day, respectively) while fat intake was higher. Protein intake fell within the recommended ranges (1.2–1.7 g/kg BW/day). Additionally, vitamin D and calcium were lower than the recommendations. The average NSKQ score was 45.4 ± 9.6% and was positively associated with weight (r = .738, P = 0.003) and vitamin D intake (r = .587, P = 0.027). Weight management score (51.8 ± 15.4%) was positively associated with weight (r = .676, P = 0.008). Four athletes included a registered dietitian nutritionist (RDN) as a source of nutrition information. In contrast, twelve athletes listed athletic trainers as a source. Conclusions The average NSKQ score suggests that NCAA Division I female volleyball players lack adequate sports nutrition knowledge which may be associated with inadequate energy and nutrient intakes. Athletes may benefit from nutrition education and counseling for improved performance and health from RDNs. Funding Sources There are no funding sources.

scholarly journals Main sources and parental educational level differences in intake of vitamin D in Finnish preschool children

2020 ◽  
Vol 79 (OCE2) ◽  
Author(s):  
Essi Skaffari ◽  
Liisa Korkalo ◽  
Henna Vepsäläinen ◽  
Suvi Itkonen ◽  
Kaija Nissinen ◽  
...  
Keyword(s):  
Vitamin D ◽  
Preschool Children ◽  
Educational Level ◽  
Parental Education ◽  
Education Level ◽  
Food Record ◽  
Milk Products ◽  
Supplement Use ◽  
Vitamin D Intake ◽  
Fluid Milk

AbstractIn Finland the recommendation for the use of vitamin D supplement is a daily supplement throughout the year for all children. It is also recommended that fluid milk products and fat spreads are fortified with vitamin D. The purpose of this study was to provide up-to-date data on children's dietary and supplemental intake of vitamin D. We also examined educational level differences in the intake and sources of vitamin D.A cross-sectional study on the diet in Finnish 3–6-year-old preschool children (the DAGIS Study) was carried out in 2015–2016. Children were recruited in preschools in Southern Finland and in the Southern Ostrobothnia Region (n = 864). The parents reported child's supplement use (brand name, dose, frequency of use) during the last month and their own education level. The highest parental education level (PEL) was used in analysis. Parents and preschool personnel also filled in a 3-day food record for the child. A part of the families also kept an additional 2-day food record, which we sent to capture seasonal variation in the diet. In this analysis we included children (n = 794) with data for supplement use and at least 1-day food record. We calculated dietary intake based on the Fineli food composition database and created a dietary supplement database. We used Kruskal-Wallis test for statistical analysis.Most of the children in all PELs used vitamin D supplements (low 77%, medium 85%, high 85%). Dietary supplements covered almost half of the total intake in all groups (low 42%, medium 48%, high 47%, p = 0,087). The main dietary sources of vitamin D were fortified fluid milk products, fortified fat spreads and fish dishes. A higher proportion of vitamin D was obtained from fish dishes in families with higher PEL (low 4.3%, medium 4.5%, high 6.1%, p = 0.005), but otherwise there were no differences in the proportions of the main sources. The vitamin D intake from diet and supplements was lowest in families with low PEL but the total intake of vitamin D was adequate in all groups (low 18.3, medium 20.7, high 20.7 μg/day, p = 0.001).The use of vitamin D fortified fluid milk products and fat spreads and the vitamin D supplementation seem to ensure adequate vitamin D intake in all children, regardless the level of parental education.

scholarly journals Vitamin D Intake from Supplemental Sources but Not from Food Sources Has Increased in the Canadian Population Over Time

2019 ◽  
Vol 150 (3) ◽  
pp. 526-535
Author(s):  
Hassan Vatanparast ◽  
Rashmi Prakash Patil ◽  
Naorin Islam ◽  
Mojtaba Shafiee ◽  
Susan J Whiting
Keyword(s):  
Vitamin D ◽  
Food Sources ◽  
Dietary Vitamin ◽  
Powdered Milk ◽  
Percentage Contribution ◽  
Supplement Use ◽  
Vitamin D Intake ◽  
Canadian Population ◽  
Usual Intake ◽  
Vitamin D Supplement

ABSTRACT Background Evidence is lacking to determine whether there have been any changes in dietary or total usual intakes of vitamin D among Canadians, in the light of recent evidence of beneficial health effects beyond bone. Objective We aimed to examine trends in dietary and total usual intake of vitamin D among Canadians aged ≥1 y. Methods This study used nationally representative nutrition data from the Canadian Community Health Survey Cycle 2.2 (CCHS 2004) and CCHS Nutrition in 2015. Dietary intake data were collected with use of two 24-h dietary recalls and dietary supplement use was determined by questionnaire. The National Cancer Institute method was used to estimate the usual intake of vitamin D as well as the prevalence of vitamin D inadequacy among Canadians aged ≥1 y. Results From 2004 to 2015, the usual intake of vitamin D from food significantly decreased (P < 0.05) by 1 μg/d only in vitamin D supplement nonusers. The contribution of Milk and Alternatives food group (i.e., fluid milk, fortified soy beverages, powdered milk, and other milk alternatives) to dietary vitamin D intake significantly decreased (P < 0.05) in both supplement users (by 7.1%) and nonusers (by 5.8%). Prevalence of vitamin D supplement use and percentage contribution of vitamin D from supplemental sources significantly increased (P < 0.05) by 5.0% and 14.9%, respectively, from 2004 to 2015. Total usual intake of vitamin D (food + supplement) significantly increased (P < 0.05) from 15.1 ± 0.3 μg/d in 2004 to 31.5 ± 1.8 μg/d in 2015 in vitamin D supplement users. In contrast to vitamin D supplement nonusers, the prevalence of vitamin D inadequacy significantly decreased (P < 0.05) from 20.6% to 14.1% among users of vitamin D supplements. Conclusions The prevalence of vitamin D supplement use and the percentage contribution of vitamin D from supplemental sources has increased in the Canadian population over an 11-y period.

scholarly journals Validation of a Vitamin D Specific Questionnaire to Determine Vitamin D Status in Athletes

Nutrients ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2732 ◽  
Author(s):  
D. Enette Larson-Meyer ◽  
Corey S. Douglas ◽  
Joi J. Thomas ◽  
Evan C. Johnson ◽  
Jacqueline N. Barcal ◽  
...  
Keyword(s):  
Vitamin D ◽  
Collegiate Athletes ◽  
Sun Exposure ◽  
Ultraviolet B ◽  
Food Record ◽  
Food Diary ◽  
Study Objective ◽  
Supplement Use ◽  
Vitamin D Intake ◽  
Tanning Bed

The study objective was to validate a food frequency and lifestyle questionnaire (FFLQ) to assess vitamin D intake and lifestyle factors affecting status. Methods: Data collected previously during the fall (n = 86), winter (n = 49), and spring (n = 67) in collegiate-athletes (Study 1) and in active adults (n = 123) (Study 2) were utilized. Study 1: Vitamin D intake and ultraviolet B exposure were estimated using the FFLQ and compared to serum 25(OH)D concentrations via simple correlation and linear regression modeling. Study 2: Vitamin D intake from food was estimated using FFLQ and compared to vitamin D intake reported in 7-Day food diaries via paired t-test and Bland–Altman analysis. Results: Study 1: Serum 25(OH)D was not associated with vitamin D intake from food, food plus supplements, or sun exposure, but was associated with tanning bed use (r = 0.39) in spring, supplement use in fall (r = 0.28), and BMI (body mass index) (r = −0.32 to −0.47) across all seasons. Serum 25(OH)D concentrations were explained by BMI, tanning bed use, and sun exposure in fall, (R = 0.42), BMI in winter (R = 0.32), and BMI and tanning bed use in spring (R = 0.52). Study 2: Estimated Vitamin D intake from food was 186.4 ± 125.7 via FFLQ and 148.5 ± 228.2 IU/day via food diary. There was no association between intake estimated by the two methodologies (r = 0.12, p < 0.05). Conclusions: FFLQ-estimated vitamin D intake was not associated with serum 25(OH)D concentration or food-record-estimated vitamin D intake. Results highlight the difficulty of designing/utilizing intake methodologies for vitamin D, as its status is influenced by body size and both endogenous and exogenous (dietary) sources.

scholarly journals Pregnancy diet and offspring asthma risk over a 10-year period: the Lifeways Cross Generation Cohort Study, Ireland

BMJ Open ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. e017013 ◽  
Author(s):  
Karien Viljoen ◽  
Ricardo Segurado ◽  
John O’Brien ◽  
Celine Murrin ◽  
John Mehegan ◽  
...  
Keyword(s):  
Vitamin D ◽  
Analysis Data ◽  
Marginal Model ◽  
Supplement Use ◽  
Vitamin D Intake ◽  
Daily Average ◽  
Asthma Risk ◽  
Average Intake ◽  
Oily Fish ◽  
Asthma Status

ObjectiveThe association of maternal pregnancy diet with offspring asthma risk have been reported. However, literature on longitudinal patterns of asthma risk relative to intrauterine nutrient exposure is limited. We aimed to establish whether vegetable, oily fish and vitamin D intake during pregnancy are associated with childhood asthma risk over a 10-year period in the Irish Republic.DesignMother–child pairs (n=897) from the Lifeways prospective birth cohort, with data on nutrient intake during pregnancy and asthma status, respectively, were eligible for inclusion in the analysis. Data on socioeconomic and morbidity indicators over 10 years of follow-up on mothers and the index child were collected through self-administered questionnaires. Asthma status as diagnosed by the general practitioner at any time point over 10 years was related to maternal vegetable, oily fish and vitamin D intake during pregnancy, while adjusting for gestational age, socioeconomic status, smoking at delivery, breast feeding, season of birth and supplement use. Data were modelled with a marginal model on correlated observations over time within individuals.ResultsIn the fully adjusted model, asthma was inversely associated with higher daily average intake of oily fish (OR 0.23 per serving/day, 95% CI 0.04 to 1.41) and of vegetables (OR 0.96 per serving/day, 95% CI 0.88 to 1.05), but the confidence limits overlapped 1. A higher daily vitamin D intake was associated with reduced odds of asthma (OR 0.93 per μg/day, 95% CI 0.89 to 0.98).ConclusionThis analysis suggests higher daily average intake of vitamin D in pregnancy is associated with asthma risk in offspring over the first 10 years of life.

scholarly journals Dietary Intakes, Knowledge and Perceptions of Semi-Professional Rugby Athletes in Scotland.

2021 ◽  
Author(s):  
Sonam Hitendre ◽  
Rebecca Jordan ◽  
Chistos Theodorakopoulos ◽  
Lois White
Keyword(s):  
Nutrition Education ◽  
Saturated Fat ◽  
Sports Nutrition ◽  
Carbohydrate Intake ◽  
Alcoholic Beverages ◽  
Dietary Intakes ◽  
Food Groups ◽  
Nutritional Knowledge ◽  
Supplement Use ◽  
Rugby Players

Abstract Background Adequate nutritional intake plays a pivotal role in optimising performance, recovery and body composition goals. This study aimed to investigate the dietary intakes (DI), nutritional knowledge (NK) and attitudes, perceptions and challenges (APC) of semi-professional rugby players in Scotland. Methods Dietary intakes and NK of 24 male semi-professional rugby players of a Super6 club were evaluated using validated questionnaires. Players were categorized as having good or poor NK according to NK scores. Diet-related APCs were assessed online using researcher developed questionnaires and 1–1 semi-structured interviews. Results Mean ± SD total NK% was poor, 53.7 ± 11.9%. The ‘Good’ NK group scored significantly higher in the Weight Management (p = 0.014), Macronutrients (p < 0.001), Micronutrients (p = 0.001) and Sports Nutrition (p < 0.001) sections. Mean DI were 26.3 ± 9.2 kcal/kg/day energy, 1.4 ± 0.4 g/kg/day protein, 21.7 ± 10.1 g/day fibre. Median (25th ,75th ) carbohydrate intake was 3.0 (2.0,3.0) g/kg/day and 6.3 (2.3,10.6) units/week alcohol. Mean ± SD fat and saturated fat (SFA) % total energy intake (EI) were 36.2 ± 3.7% and 12.8 ± 1.9% respectively, and SFA %EI exceeded recommendations (p < 0.001). The ‘Good’ NK group had a significantly higher intakes of all macronutrients (p < 0.05). Total NK% positively correlated with intakes of meat (r = 0.556, p = 0.011), cereals (r = 0.458, p = 0.042), dietary fat (r = 0.477, p = 0.034), vegetables (r = 0.487, p = 0.030) and alcoholic beverages (r = 0.541, p = 0.014). Supplement use was 68%. Players felt diet affected performance (94%) but 31% of them were unaware of any specific nutritional strategies. A healthy diet was perceived to be ‘balanced’ with ‘variety from all food groups’. Lack of time for preparation was described as the main barrier to healthy eating. Conclusions Overall players had poor NK, their fibre and carbohydrate intake was suboptimal, whereas saturated fat intake exceeded recommendations. Many lacked awareness of current sports nutrition guidelines. Further nutrition education may be needed to improve diet quality and aid performance goals.

scholarly journals Effect of Vitamin D3 (Cholecalciferol) Supplementation on Serum Vitamin D3 and 25-hydroxyvitamin D (25(OH)D) Concentrations Among Participants in the VITAL-DKD Study

2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1779-1779
Author(s):  
Cora Best ◽  
Leila Zelnick ◽  
Simon Hsu ◽  
Christine Limonte ◽  
Ravi Thadhani ◽  
...  
Keyword(s):  
Vitamin D ◽  
Body Weight ◽  
Vitamin D3 ◽  
Controlled Trial ◽  
Serum Vitamin ◽  
Threshold Effect ◽  
Omega 3 ◽  
Serum Vitamin D ◽  
Supplement Use ◽  
Effect Of Treatment

Abstract Objectives To compare the serum vitamin D3 and 25(OH)D responses to vitamin D3 supplementation in the VITAL-DKD study. Methods The Vitamin D and OmegA-3 TriaL (VITAL)-DKD was a 2 × 2 factorial, randomized, placebo-controlled trial of vitamin D3 (2000 IU/day) and omega-3 fatty acids (1 g/day) for prevention of chronic kidney disease among adults with type 2 diabetes. For the first 200 enrolled participants, we measured baseline and year 2 serum vitamin D3 concentration with a new validated liquid chromatography-tandem mass spectrometry method. Linear regression was used to test the effects of D3 treatment on changes in serum D3 and 25(OH)D concentrations and to examine possible effect modification by relevant clinical characteristics. Results Participants were 70 ± 6 years of age, 64% male, 70% non-Hispanic white, and 15% black. At baseline and year 2, serum D3 concentration and 25(OH)D3 concentration were positively related, with a threshold effect at a 25(OH)D3 concentration of 50 nmol/L. Below this threshold, serum D3 concentration rarely exceeded 5 nmol/L. Above it, serum D3 concentration was much more variable. Supplementation increased mean serum D3 concentration from 12 nmol/L at baseline to 41 nmol/L at year 2 (difference compared with placebo 30 nmol/L; 95% CI 25 to 35 nmol/L) and increased mean serum 25(OH)D concentration from 76 nmol/L to 102 nmol/L (difference compared with placebo 33 nmol/L; 95% CI 26 to 40 nmol/L). The effect of treatment on change in serum 25(OH)D was modified by body weight (−0.48 nmol/L per kg of weight; P &lt; 0.01), baseline 25(OH)D concentration (−0.30 nmol/L per nmol/L of baseline 25(OH)D; P &lt; 0.01), baseline D3 concentration (−5 nmol/L per 100% increase in baseline D3; P = 0.04), and non-study vitamin D supplement use (smaller effect as dose of non-study supplement increased). The effect of treatment on change in serum D3 concentration was modified only by body weight (−0.33 nmol/L per kg of weight; P = 0.01). Conclusions Among older adults, 2 years of 2000 IU/day vitamin D3 led to similar mean increases in serum D3 and 25(OH)D. Unlike the serum 25(OH)D response, the serum D3 response to supplementation did not depend on baseline vitamin D status. The serum vitamin D concentration may be an additional, valuable marker of exposure to vitamin D during supplementation. Funding Sources NIDDK NIH ODS NHLBI.

Supplement use in Swiss wheelchair athletes

2017 ◽  
Vol 65 (1) ◽  
Keyword(s):  
Sports Nutrition ◽  
Specific Information ◽  
Beetroot Juice ◽  
Wheelchair Athletes ◽  
Beta Alanine ◽  
Supplement Use ◽  
Sports Drinks ◽  
The One ◽  
Nutritional Strategies ◽  
Specific Education

Supplement use in able-bodied athletes during major championships was reported to be around 80 to 90%. In contrast, the prevalence of supplement use in Paralympic athletes according to surveys from 2004 and 2012 was lower with around 40 to 58%. This study aimed to investigate the supplement use in Swiss wheelchair athletes. All Swiss wheelchair athletes were asked to complete a retrospective survey on supplement use during training and competition. The 65 Swiss wheelchair athletes (age: 39 ± 12 y, height: 174 ± 9 cm; body mass: 67 ± 11 kg) responding to the survey participated in rugby, basketball, paracycling, athletics, curling, badminton, alpine skiing and e-hockey. In total, 63% of the athletes used supplements during training periods and 43% before competitions. During training periods, they used mainly sports drinks (29%), recovery drinks (17%), vitamin D (15%), multivitamins (14%), magnesium (12%), proteins (11%), iron (9%) and energy gels (8%). Before competitions, 5% used caffeine, 5% creatine, 1.5% beta-alanine and 1.5% beetroot juice. Forty-two percent of all athletes wanted more information about sports nutrition and supplementation. The number of Swiss wheelchair athletes using supplements was comparable to the one observed in Paralympic sports. Based on the athletes’ feedback, it is recommended to promote the specific education in sports nutrition and to provide the athletes and coaches with more specific information on supplements and nutritional strategies.

scholarly journals Vitamin D deficiency during pregnancy and its associated factors among third trimester Malaysian pregnant women

2019 ◽  
Author(s):  
Fui Chee Woon ◽  
Yit Siew Chin ◽  
Intan Hakimah Ismail ◽  
Marijka Batterham ◽  
Amir Hamzah Abdul Latiff ◽  
...  
Keyword(s):  
Vitamin D ◽  
Pregnant Women ◽  
Vitamin D Deficiency ◽  
Associated Factors ◽  
Sun Exposure ◽  
Food Sources ◽  
Third Trimester ◽  
Supplement Use ◽  
Vitamin D Intake ◽  
Vitamin D Levels

AbstractBackgroundDespite perennial sunshine, vitamin D deficiency is prevalent among Malaysian especially pregnant women.ObjectiveTo determine the vitamin D status and its associated factors among third trimester pregnant women attending government health clinics in Selangor and Kuala Lumpur, Malaysia.MethodsInformation on socio-demographic characteristics, obstetrical history, vitamin D intake, supplement use, and sun exposure were obtained through face-to-face interviews. Serum 25-hydroxyvitamin D concentration was measured and classified as deficient (< 30 nmol/L), insufficient (30-50 nmol/L), and sufficient (≥ 50 nmol/L).ResultsOf the 535 pregnant women recruited, 42.6% were vitamin D deficient. They consumed an average of 8.7 ± 6.7 μg of vitamin D daily. A total of 80.4% of the vitamin D were obtained from the food sources, while 19.6% were from dietary supplements. Fish and fish products showed the highest contribution to vitamin D intake (35.8%). The multivariate generalized linear mixed models, with clinic as a random effect, indicates that higher intake of vitamin D is associated with lower risk of vitamin D deficiency among pregnant women (OR = 0.96; 95% CI = 0.93-0.99). Non-Malay pregnant women had lower odds of having vitamin D deficiency (OR = 0.13; 95% CI = 0.04-0.37) compared to Malays. No associations were found between age, educational level, monthly household income, work status, gravidity, parity, pre-pregnancy body mass index, total hours of sun exposure, total percentage of body surface area, and sun exposure index per day with vitamin D deficiency.ConclusionsVitamin D deficiency is prevalent among Malaysian pregnant women. Considering the possible adverse obstetric and fetal outcomes of vitamin D deficiency during pregnancy, antenatal screening of vitamin D levels and nutrition education should be emphasised by taking into consideration ethnic differences.

Rankings of iron, vitamin D, and calcium intakes in relation to maternal characteristics of pregnant Canadian women

2016 ◽  
Vol 41 (7) ◽  
pp. 749-757 ◽  
Author(s):  
Anne-Sophie Morisset ◽  
Hope A. Weiler ◽  
Lise Dubois ◽  
Jillian Ashley-Martin ◽  
Gabriel D. Shapiro ◽  
...  
Keyword(s):  
Vitamin D ◽  
Pregnant Women ◽  
Environmental Chemicals ◽  
Total Iron ◽  
Maternal Characteristics ◽  
Supplement Use ◽  
Vitamin D Intake ◽  
Positive Indicators ◽  
University Degree ◽  
Supplement Intake

Iron, vitamin D, and calcium intakes in the prenatal period are important determinants of maternal and fetal health. The objective of this study was to examine iron, vitamin D, and calcium intakes from diet and supplements in relation to maternal characteristics. Data were collected in a subsample of 1186 pregnant women from the Maternal–Infant Research on Environmental Chemicals (MIREC) Study, a cohort study including pregnant women recruited from 10 Canadian sites between 2008 and 2011. A food frequency questionnaire was administered to obtain rankings of iron, calcium, and vitamin D intake (16–21 weeks of pregnancy). Intakes from supplements were obtained from a separate questionnaire (6–13 weeks of pregnancy). Women were divided into 2 groups according to the median total intake of each nutrient. Supplement intake was an important contributor to total iron intake (median 74%, interquartile range (IQR) 0%–81%) and total vitamin D intake (median 60%, IQR 0%–73%), while the opposite was observed for calcium (median 18%, IQR 0%–27%). Being born outside of Canada was significantly associated with lower total intakes of iron, vitamin D, and calcium (p ≤ 0.01 for all). Consistent positive indicators of supplement use (iron, vitamin D, and calcium) were maternal age over 30 years and holding a university degree. In conclusion, among Canadian women, the probability of having lower iron, vitamin D, and calcium intakes is higher among those born outside Canada; supplement intake is a major contributor to total iron and vitamin D intakes; and higher education level and age over 30 years are associated with supplement intake.

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