Quantifying the non-food sources of basal vitamin D input

Sharon L. McDonnell, Christine B. French, Robert P. Heaney

Research output: Contribution to journalReview article

3 Citations (Scopus)

Abstract

Unsupplemented vitamin D status is determined by cutaneous synthesis and food inputs; however, their relative magnitudes are largely unknown. In a cohort of 780 non-supplement-taking adults with a mean serum 25-hydroxyvitamin D [25(OH)D] of 33 (±14) ng/ml we assessed the relationship between serum 25(OH)D and non-food environmental variables. Serum 25(OH)D concentration was adjusted for seasonal influence (which removed 2% of the total variance) and these adjusted values were regressed against factors involved in cutaneous synthesis. Indoor tanning use, sun exposure, and percent of work performed outdoors were significantly positively associated and body mass index (BMI) was significantly negatively associated with 25(OH)D values (P <0.03 for each). Latitude, gender, and age were not significantly correlated (P > 0.10). Season and non-food predictors together explained 13% of the total variance in serum 25(OH)D concentration. Non-traditional food sources need to be investigated as possible vitamin D inputs. This article is part of a Special Issue entitled 'Vitamin D Workshop'.

Original languageEnglish
Pages (from-to)146-148
Number of pages3
JournalJournal of Steroid Biochemistry and Molecular Biology
Volume144
Issue numberPART A
DOIs
StatePublished - 2014

Fingerprint

Vitamin D
Serum
Tanning
Food
Sun
Skin
Solar System
Body Mass Index
Education
25-hydroxyvitamin D

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Clinical Biochemistry
  • Endocrinology
  • Cell Biology
  • Molecular Biology
  • Endocrinology, Diabetes and Metabolism
  • Molecular Medicine

Cite this

Quantifying the non-food sources of basal vitamin D input. / McDonnell, Sharon L.; French, Christine B.; Heaney, Robert P.

In: Journal of Steroid Biochemistry and Molecular Biology, Vol. 144, No. PART A, 2014, p. 146-148.

Research output: Contribution to journalReview article

McDonnell, Sharon L. ; French, Christine B. ; Heaney, Robert P. / Quantifying the non-food sources of basal vitamin D input. In: Journal of Steroid Biochemistry and Molecular Biology. 2014 ; Vol. 144, No. PART A. pp. 146-148.
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