LIVE LONGER WITH VITAMIN D3

A third meta-analysis that included 32 studies from January 1966 to January 2013 with more than 500,000 people (about 55 years old), found that serum 25(OH)D levels less than or equal to 30 ng/mL were associated with greater all-cause mortality, as compared to levels over 30 ng/mL. The authors of this meta-analysis also noted that the cutoff point for a deficient intake of vitamin D (20 ng/mL), as recommended by the federal government’s Institute of Medicine was too low to get all the health benefits of vitamin D (e.g., reduced risk of all-cause mortality and diseases such as cancer, autoimmune diseases, etc.). They suggested that the cutoff point should “not be set at 20 ng/mL, but at 30 ng/mL (Gruber, 2015).”

It is notable that the “Institute of Medicine recommended a daily tolerable upper intake (UL) for vitamin D for persons of nine years and older of 4000 IU and the Endocrine Society recommended for adults an UL of 10,000 IU vitamin D (Gruber, 2015).” We take 16,000 IU/day to attain a minimum-mortality sweet spot value of 60 ng/ml. NOTE: Do not take more than 10,000 IU/day unless you also have a blood test to verify that you are not taking too much.

It is also interesting to know that “obese individuals needed 2.5 times more vitamin D to raise the blood levels of 25(OH)D to the same degree as a normal weight person (Gruber, 2015).”

In conclusion, vitamin D3 is an inexpensive way to obtain a variety of potentially important health benefits, including the possibility of living longer.

Reference

Gruber et al. Live longer with vitamin D? Nutrients. 7:1871-80 (2015).

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