English abstract
Objectives: The objective of this study was to determine the vitamin D status of pregnant Omanis by
measurement of their circulating 25 hydroxy vitamin D levels. Methods: Blood samples were obtained from a cohort
of 103 consecutive healthy pregnant Omanis at the Armed Forces Hospital, Muscat, on their first antenatal visit.
The study took place in May, June and July 2010. Results: Vitamin D deficiency was present in 34 (33%) of patients
(25OHD3 <25 nmol/L), 'at risk' levels were found in 67 (65%) patients (25OHD3 25–50 nmol/L); two patients (1.9%)
had values between 50 and 75 nmol/L, and no patients in the optimal range >75 nmol/L. Conclusion: If confirmed,
these findings indicate the need for vitamin D replacement during pregnancy and lactation. Although not evidence
based we recommend at least 1000 IU of cholecalciferol, (vitamin D3) daily.
