5000 IU Vitamin D daily resulted in lower health care costs - RCT
Healthcare Costs and Healthcare Utilization Outcomes of Vitamin D3 Supplementation at 5000 IU Daily During a 10.9 month Observation Period within a Pragmatic Randomized Clinical Trial
Nutrients 2023, 15(20), 4435; https://doi.org/10.3390/nu15204435
Patrick J. LaRiccia, Teresa Cafaro, Dibato John, Noud van Helmond, Ludmil V. Mitrev, Brigid Bandomer, Tracy L. Brobyn, Krystal Hunter, Satyajeet Roy, Kevin Q. Ng, Helen Goldstein, Alan Tsai, Denise Thwing, Mary Ann Maag, Myung K. Chung
Vitamin D insufficiency has been linked to multiple conditions including bone disease, respiratory disease, cardiovascular disease, diabetes, and cancer. Observational studies indicate lower healthcare costs and healthcare utilization with sufficient vitamin D levels. The secondary aims of our previously published pragmatic clinical trial of vitamin D3 supplementation were comparisons of healthcare costs and healthcare utilization. Comparisons were made between the vitamin D3 at 5000 IU supplementation group and a non-supplemented control group.
Costs of care between the groups were not statistically different.
Vitamin D3 supplementation reduced healthcare utilization in four major categories:
hospitalizations for any reason
- (rate difference: -0.19 per 1000 person-days, 95%-CI: -0.21 to -0.17 per 1000 person-days, p < 0.0001);
ICU admissions for any reason
- (rate difference: -0.06 per 1000 person-days, 95%-CI: -0.08 to -0.04 per 1000 person-days, p < 0.0001);
emergency room visits for any reason
- (rate difference: -0.26 per 1000 person-days, 95%-CI: -0.46 to -0.05 per 1000 person-days, p = 0.0131; and
hospitalizations due to Covid-19
- (rate difference: -8.47X10−3 per 1000 person-days, 95%-CI: -0.02 to -1.05X10−3 per 1000 person-days, p = 0.0253).
Appropriately powered studies of longer duration are recommended for replication of these utilization findings and analysis of cost differences.
📄 Download the PDF from Vitamin D Life
Study waited 60 days before cost monitoring, however, Cancers etc. will not respond for years.
Anticipate far lower costs if the cost monitoring started at 12 months and lasted for >36 months
Vitamin D group had 13% less hospital cost than the control group
| Group | Total Hospital $ | 1. of people days | Average $/day |
| Control | $41,109,649 | 590,000 | $69.67 |
| Intervention | $2,318,500 | 37,900 | $61.16 |
However, the abstract says: "Costs of care between the groups were not statistically different. "
It actually takes >150 days for response to plateau, not 60 days (in this study)

Is 50 ng of vitamin D too high, just right, or not enough (5,000 IU ==> 50 ng)
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items in Intervention - Vitamin D by date
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