nmol

In support of the effect, fracture reduction was related to vitamin D levels, with higher levels showing greater reduction, up to a level of 112 nmol/ml (about 40 ng/ml).

Vitamin D Reduces Fractures aka TBTAM 2009

The current ranges for "normal" are 25 to 137 nmol/L or 10 to 55 ng/ml.

Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

Recent research by vitamin D pioneer Dr. Michael Holick, Professor of Medicine, Physiology, and Dermatology at Boston University School of Medicine, recommends intakes of up to 2,000 IU a day -- or enough to keep blood levels of 25 hydroxy vitamin D at between 75 to 125 nmol/L (nanomoles per liter). (viii) That may sound high, but it's still safe: Lifeguards have levels of 250 nmol/L without toxicity.

Mark Hyman, MD: Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

The current ranges for "normal" are 25 to 137 nmol/L or 10 to 55 ng/ml.

Mark Hyman, MD: Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

In that case, the range should be 100 to 160 nmol/L or 40 to 65 ng/ml.

Mark Hyman, MD: Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

In countries where sun exposure provides the equivalent of 10,000 IU a day and people have vitamin D blood levels of 105 to 163 nmol/L, autoimmune diseases (like multiple sclerosis, type 1 diabetes, inflammatory bowel disease, rheumatoid arthritis and lupus) are uncommon.

Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

In an observational study of Finnish soldiers, those with 25-hydroxyvitamin D levels higher than 16 ng/mL (40 nmol/L) had fewer respiratory infections than those with lower levels. (v) More recently, in a double-blind randomized controlled trial involving school girls, supplementation with 1200 IU/d of vitamin D3 during the wintertime significantly reduced influenza A infections. (vi)

Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

In that case, the range should be 100 to 160 nmol/L or 40 to 65 ng/ml.

Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

Recent research by vitamin D pioneer Dr. Michael Holick, Professor of Medicine, Physiology, and Dermatology at Boston University School of Medicine, recommends intakes of up to 2,000 IU a day -- or enough to keep blood levels of 25 hydroxy vitamin D at between 75 to 125 nmol/L (nanomoles per liter). (viii) That may sound high, but it's still safe: Lifeguards have levels of 250 nmol/L without toxicity.

Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010

The exact amount needed to get your blood levels to the optimal range (100 to160 nmol/L) will vary depending on your age, how far north you live, how much time you spend in the sun and even the time of the year.

Vitamin D: Why You Are Probably NOT Getting Enough and How That Makes You Sick 2010