This Study Proved We Were WRONG About Vitamin D
Brad Stanfield
Apr 9, 2025
Mindsip insights from this episode:
Follow new guidelines for reduced vitamin D intake
The latest Endocrine Society guidelines suggest a lower daily intake of 600-800 IU for the general population, a reduction from their previous recommendations.
Reconsider routine vitamin D testing due to unclear optimal levels
The Endocrine Society now advises against routine screening for vitamin D levels because we don't actually know what the optimal levels should be.
Limit vitamin D intake to protect bone density
A clinical trial found that daily doses of 4,000 and 10,000 IU of vitamin D actually decreased bone density in the wrist by 2.4% and 3.5% respectively.
Limit vitamin D doses to reduce fall risk in older women
In a study of older women, those taking the highest doses of vitamin D had an increased rate of falls, especially if they had a previous history of falling.
Limit vitamin D intake to preserve muscle strength
In one study, women taking 2,800 IU of vitamin D daily experienced a 9% decrease in hand grip strength and a 13% decrease in leg strength after three months.
Reassess vitamin D supplementation's impact on all-cause mortality
Contrary to earlier findings, a large 2020 meta-analysis found that vitamin D supplementation made no difference in all-cause mortality for the general population.
Supplement with 3,000 IU of vitamin D daily during pregnancy to reduce complications
Supplementation during pregnancy with around 3,000 IU of vitamin D daily can lower the risk of serious complications like preeclampsia and preterm birth.
Reduce vitamin D supplement dose to align with new research
Reflecting the new research, the speaker reduced the vitamin D dose in their supplement, micro viamin, from 2,000 IU down to 1,000 IU.
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