Vitamin D

Nick Galbreath

TLDR: Vitamin D prevents Death. Not reduces the chance of this or that. But prevents “all cause mortality”. That’s the type of result you want!

Great introduction

Testing

Serum Levels

Grassroots Heath recommends 40-60 ng/mL.

Vitamin D Council “suggests that a level of 50 ng/mL is the ideal level to aim for.”

NourishBalanceThrive, 2016-03-21, reviewed research for peak athletic performance to determine 40-50 ng/mL.

Huffington Post 2017-07-29 summarizes the optimal vitamin d blood level to reduce death. Appears to be 40 ng/mL.

Supplement Dosage Recommendations

USA FDA recommends “600 IU/day, 800 IU/day for seniors”

Dr. Horlick recommends “1000 IU of vitamin D a day for children and 2000-3000 IU of vitamin D for adults.”

Linus Pauling Institute recommends 2000 IU.

Vitamin D Council recommends 5000 IU, with the goal of getting blood levels into the 40s.