When Dosed Correctly, Vitamin D Cuts Sick Days by 17%

Brad Stanfield

3 jun 2025

Episode description

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Here are the links to the research papers referenced in the video:
https://academic.oup.com/jcem/article/109/8/1961/7686350
https://pubmed.ncbi.nlm.nih.gov/16529140/
https://academic.oup.com/jcem/article/96/7/1911/2833671
https://www.precedenceresearch.com/vitamin-d-market
https://pmc.ncbi.nlm.nih.gov/articles/PMC7089819
https://pubmed.ncbi.nlm.nih.gov/40096917/
https://pubmed.ncbi.nlm.nih.gov/24414552
https://pubmed.ncbi.nlm.nih.gov/31215980/
https://www.endocrine.org/clinical-practice-guidelines/vitamin-d-for-prevention-of-disease
https://journals.lww.com/pidj/fulltext/2018/08000/preventive_effects_of_vitamin_d_on_seasonal.5.aspx
https://pmc.ncbi.nlm.nih.gov/articles/PMC5817430/
https://link.springer.com/article/10.1007/s00394-025-03674-1
https://link.springer.com/article/10.1007/s00394-018-1671-8
https://pmc.ncbi.nlm.nih.gov/articles/PMC5817430/
https://academic.oup.com/jcem/article/109/8/1907/7685305
https://pubmed.ncbi.nlm.nih.gov/31454046/

Thumbnail by James Kelly
Video edited by Troy Young
Script by John Milliken

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Episode description

Mindsip insights from this episode:

Adjust daily vitamin D intake according to new guidelines

The latest 2024 Endocrine Society guidelines suggest a lower daily intake of 600 IU for younger adults, increasing to 800 IU for those 50 and older.

#supplement

#vitamin-D

Reevaluate Vitamin D supplements for heart and cancer prevention

Despite early associations from observational studies, large controlled trials have shown that Vitamin D supplements do not reduce the rates of heart attacks or cancer.

#cancer

#vitamin-D

Boost children's health with daily Vitamin D supplementation

A recent Danish study found that children taking 1,000 IU of Vitamin D daily had 17% fewer sick days from respiratory tract infections.

#children

#vitamin-D

Ensure kids receive 800-1000 IU daily for optimal immunity

Studies suggest the effective dose for maintaining a child's immune response is around 800-1000 IU daily, as a lower dose of 400 IU may not be sufficient.

#children

#immune-system

Supplement vitamin D for pregnant women, pre-diabetics, and seniors

Supplementation is still suggested for specific groups, including pregnant women (~3,000 IU), pre-diabetics (~3,500 IU), and adults over 75.

#supplement

#vitamin-D

Adjust vitamin D dosage to align with new scientific guidelines

The speaker reduced the Vitamin D dose in their product, microvitamin, from 2,000 to 1,000 IU in response to the new, more modest scientific guidelines.