Vitamin D Intake, Sunlight Exposure and 25-Hydroxyvitamin D Levels in the Elderly during One Year

Lamberg‐Allardt, Christel

doi:10.1159/000176796

Cited by 82 publications

(45 citation statements)

References 11 publications

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“…The average dietary vitamin D intake of girls aged 12 or 15 y in Finland has previously been reported to be 2.1 to 3.0 mgad; the total intake of girls of this age including supplements ranged from 2.5 to 3.4 mgad (Lamberg-Allardt, 1984). These ®gures agree with the present study ( Figure 1).…”

Section: Discussionsupporting

confidence: 92%

“…Many studies have shown a signi®cant correlation between the dietary vitamin D intake and the serum 25-hydroxyvitamin D [S-25(OH)D] concentration in the elderly (Lips et al, 1987;Krall et al, 1989;Salamone et al, 1993;Thomas et al, 1998). Vitamin D from the diet is clearly important in the northern countries like Finland (Lamberg-Allardt, 1984).…”

Section: Introductionmentioning

confidence: 99%

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Vitamin D intake is low and hypovitaminosis D common in healthy 9− to 15-year-old Finnish girls

Lehtonen-Veromaa

Möttönen

Irjala³

et al. 1999

Eur J Clin Nutr

188

131

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Objectives: To study the prevalence of hypovitaminosis D, the effect of vitamin D supplementation on serum 25-hydroxyvitamin D [S-25(OH)D], and the intakes of vitamin D and calcium in Finnish 9-to 15-year-old athletic and nonathletic girls. Design: 1-year follow-up study (February 1997-March 1998 with three months of vitamin D supplementation (10 mgad) from October to January. Setting: Turku University Central Hospital, Finland. Subjects: 191 female volunteers aged 9 ± 15 y (131 athletes and 60 controls). Methods: Vitamin D and calcium intakes were estimated by a four-day food recording and a semi-quantitative food frequency questionnaire (FFQ). S-25(OH)D was followed by radioimmunoassay (RIA). Results: At baseline the mean S-25(OH)D concentration was 33.9 nmolal among all girls. In winter severe hypovitaminosis D (S-25(OH)D`20 nmolal) occurred in 13.4% of the participants and in 67.7% S-25(OH)D was below 37.5 nmolal. By the next summer the mean S-25(OH)D concentration was 62.9 nmolal and in 1.6% of the subjects it was below 37.5 nmolal. The prevalence of severe hypovitaminosis D was not signi®cantly reduced by three months of vitamin D (10 mgad) supplementation. At baseline, the mean intake of vitamin D was 2.9 mgad by food recording and 4.3 mgad by FFQ. The mean calcium intake was 1256 mgad and 1580 mgad, respectively. The intakes of vitamin D and calcium remained unchanged during the follow-up period. The athletes consumed more calcium than nonathletic controls, whereas the intake of vitamin D was quite similar among both groups. The vitamin D intake by FFQ correlated with the S-25(OH)D concentration in wintertime (r 0.28, P`0.01). Conclusion: Hypovitaminosis D is fairly common in growing Finnish girls in the wintertime, and three months of vitamin D supplementation with 10 mgad was insuf®cient in preventing hypovitaminosis D. The daily dietary vitamin D intake was insuf®cient (`5 mgad) in the majority of participants, while the calcium intake was usually suf®cient.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Vitamin D intake is low and hypovitaminosis D common in healthy 9− to 15-year-old Finnish girls

Lehtonen-Veromaa

Möttönen

Irjala³

et al. 1999

Eur J Clin Nutr

188

131

View full text Add to dashboard Cite

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“…Many studies have shown a significant correlation between the dietary vitamin D intake and the 25-hydroxy-vitamin D concentration in serum, indicating that dietary vitamin D is of importance at least in the Scandinavian countries with a low UV-light during the winter season (Haddad & Hahn, 1973;Lamberg-Allardt, 1984;Lehtonen-Veromaa et al, 1999). Circulating vitamin D concentrations reach their nadir in the winter months, and at that time the dietary intake of vitamin D has a greater impact on vitamin D status (Davies et al, 1999;Lehtonen-Veromaa et al, 1999, 2002.…”

Section: Discussionmentioning

confidence: 99%

Intake of vitamin D by Finnish children aged 3 months to 3 years in relation to sociodemographic factors

et al. 2006

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Objective: To study the total daily intake of vitamin D from food and supplements among Finnish children aged 3 months to 3 years, the dietary sources of vitamin D and the association between vitamin D intake and sociodemographic factors. Subjects and methods: The subjects are participants in the Finnish Type I Diabetes Prediction and Prevention Nutrition Study born between October 1997 and October 1998. At the age of 3 and 6 months, 1, 2 and 3 years, 342 (72% of the invited families), 298 (63%), 267 (56%), 233 (49%) and 209 (44%) families, respectively, participated in the present study. Food consumption was assessed by a 3-day food record. A structured questionnaire was used to record the parents' socioeconomic status. Results: The mean dietary vitamin D intake exceeded the recommendation (10 mg/day) at the age of 3 (11.0 mg) and 6 months (12.0 mg), but decreased thereafter being 9.8, 5.0 and 4.1 mg at 1, 2 and 3 years of age, respectively. Among the children 91, 91, 81, 42 and 26% used vitamin D supplements at the age of 3 and 6 months, and 1, 2 and 3 years, respectively. In children not using vitamin D supplements, vitamin D intake was less than 10 mg/day at all ages. Vitamin D intake from food did not differ in children who used and did not use vitamin D supplements. Vitamin D supplements were the main source of vitamin D intake in all age groups studied, followed by vitamin D-fortified infant formula in 3-month-olds and infant formula and baby foods in 6-month-olds. After the age of 1 year, the most important food sources of vitamin D were margarine, fish, baby foods, low-fat milk and eggs. Sociodemographic factors, especially the number of children in the family and maternal age, were associated with the total vitamin D intake and vitamin D supplement use. Conclusion: Vitamin D supplements are not used according to the dietary recommendations in a substantial proportion of Finnish children.

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“…The study was conducted during February to March and April to May in 1995 for low-income and high-income women, respectively. There is no difference in sunshine during this period that could substantially affect vitamin D status (Lamberg-Allardt, 1984).…”

Section: Subjectsmentioning

confidence: 90%

Vitamin D deficiency: a concern in premenopausal Bangladeshi women of two socio-economic groups in rural and urban region

et al. 2002

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Objective: The study was designed to evaluate the vitamin D status in women of different physiological status of two socioeconomic groups in Bangladesh. Design: A cross-sectional study, using serum 25-hydroxyvitamin D (25-OHD), calcium, phosphorus and alkaline phosphatase activity. Setting: Two regions of Bangladesh. The Dhaka city area and west region of Nandail (Betagair Union), Mymensingh. Subjects: Representative subjects of two groups (low socio-economic group ¼ group L, n ¼ 99; and high socio-economic group ¼ group H, n ¼ 90) of Bangladeshi women aged 16 -40 y. About 87% of the subjects were housewives and the rest, 13%, were distributed among other different professions. Each group comprised of three sub-groups (non-pregnant nonlactating ¼ 1, pregnant ¼ 2, and lactating ¼ 3). Results: The influence of socio-economic status and physiological status on serum 25-OHD concentration (P ¼ 0.038, P ¼ 0.015, respectively), serum calcium concentration (P < 0.001, P < 0.001, respectively) and alkaline phosphatase activity (P < 0.001, P < 0.001, respectively) were observed. The distribution of serum 25-OHD concentration in both groups was shifted overall toward the lower limit of the normal range. Seventeen percent of women in group L and 12% of women in group H had serum 25-OHD concentration < 25 nmol=l. Hypovitaminosis D (serum 25-OHD concentration 37.5 nmol=l) was observed in 50% of subjects in group L and 38% of subjects in group H, respectively. The prevalence of hypovitaminosis was higher in lactating subjects of the groups L and H (63 and 46%, respectively) than in the other sub-groups in the same group. Conclusions: The results of the study suggested that women in Bangladesh were at risk of hypovitaminosis D and lactation was an additional risk factor in low income groups. The situation may increase the risk of bone loss.

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Vitamin D Intake, Sunlight Exposure and 25-Hydroxyvitamin D Levels in the Elderly during One Year

Cited by 82 publications

References 11 publications

Vitamin D intake is low and hypovitaminosis D common in healthy 9− to 15-year-old Finnish girls

Vitamin D intake is low and hypovitaminosis D common in healthy 9− to 15-year-old Finnish girls

Intake of vitamin D by Finnish children aged 3 months to 3 years in relation to sociodemographic factors

Vitamin D deficiency: a concern in premenopausal Bangladeshi women of two socio-economic groups in rural and urban region

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