Are Vitamin D3 Tablets and Oil Drops Equally Effective in Raising S-25-Hydroxyvitamin D Concentrations? A Post-Hoc Analysis of an Observational Study on Immunodeficient Patients

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Abstract

BACKGROUND: Vitamin D3 supplements are available as tablets or oil drops, but there is no consensus as to whether either of these preparations is more effective than the other. METHODS: We compared the effectiveness of tablets versus oil in raising S-25-hydroxyvitamin D (S-25-OHD) in plasma by re-analyzing data from a previously performed observational study in which immunodeficient patients with S-25-OHD concentrations <75 nmol/L were randomly prescribed vitamin D3 tablets (1600 IU/day) or vitamin D3 oil-drops (1500 IU/day) for twelve months. Tablets and oil were compared for the effect on S-25-OHD concentrations after 3-5 months and antibiotic use. RESULTS: Data on S-25-OHD after ≥ 3 months was available for 137 patients treated with tablets and 69 with oil drops. Both groups exhibited a significant increase in S-25-OHD-oil-drops from 55 to 86 nmol/L and tablets from 52 to 87 nmol/L-with no difference between groups (p = 0.77). In a subgroup of patients without immunoglobulin replacement, vitamin D3 supplementation with oil drops (n = 34) but not with tablets (n = 60) resulted in significantly lower antibiotic administration (p < 0.001 and p = 0.58). CONCLUSION: Vitamin D3 supplementation with tablets and oil drops were equally efficient in raising S-25-OHD concentrations. Only oil drops caused a reduction in antibiotic consumption in immuno-deficient patients who did not receive immunoglobulin replacement.

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Helde Frankling, M., Norlin, A. C., Hansen, S., Wahren Borgström, E., Bergman, P., & Björkhem-Bergman, L. (2020). Are Vitamin D3 Tablets and Oil Drops Equally Effective in Raising S-25-Hydroxyvitamin D Concentrations? A Post-Hoc Analysis of an Observational Study on Immunodeficient Patients. Nutrients, 12(5). https://doi.org/10.3390/nu12051230

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