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

Brad Stanfield

Jun 3, 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

The links above are affiliate links, so I receive a small commission every time you use them to purchase a product. The content contained in this video, and its accompanying description, is not intended to replace viewers’ relationships with their own medical practitioner. Always speak with your doctor regarding the content of this channel, and especially before using any products, services, or devices discussed on this channel.

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.