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Vitamin D: A D-Lightful Vitamin for Health – Holick Dec 2012

Endocrinol Metab. 2012 Dec;27(4):255-267. English.
Published online 2012 December 20. http://dx.doi.org/10.3803/EnM.2012.27.4.255
Copyright © 2012 Korean Endocrine Society
Michael F. Holick
Vitamin D, Skin and Bone Research Laboratory, Section of Endocrinology, Department of Medicine, Nutrition and Diabetes, Boston University Medical Center, Boston, MA, USA.

Corresponding author: Michael F. Holick. Department of Medicine, Vitamin D, Skin and Bone Research Laboratory, Section of Endocrinology, Nutrition and Diabetes, Boston University Medical Center, 85 East Newton Street, M-1013, Boston, MA 02118, USA. Tel: +1-617-638-4546, Fax: +1-617-638-8882, Email: mfholick at bu.edu

Vitamin D is a sunshine vitamin that has been produced on this earth for more than 500 million years. Because foods contain so little vitamin D most humans have always depended on sun exposure for their vitamin D requirement. Vitamin D deficiency has been defined as a serum 25-hydroxyvitamin D concentration < 20 ng/mL (50 nmol/L); vitamin D insufficiency as a serum 25-hydroxyvitamin D of 21-29 ng/mL and vitamin D sufficiency as a serum 25-hydroxyvitamin D of 30-100 ng/mL whereas toxicity is usually not seen until blood levels are above 150 ng/mL. Vitamin D deficiency is a global health problem that increases risk for metabolic bone diseases in children and adults as well as many chronic illnesses including autoimmune diseases, type 2 diabetes, cardiovascular disease, infectious disease, and cancer. The major causes of vitamin D deficiency are lack of adequate sensible exposure to sunlight, inadequate dietary intake and obesity.

Vitamin D in the Body

color version is from his 2013 publication
see wikipage http://www.vitad.org/tiki-index.php?page_id=3511

Vitamin D vs time of the day

Vitamin D vs time of day is.gd/holick1212

Vitamin D vs time of the year

Vitamin D vs time of year is.gd/holick1212

Hyperparthyroidism

Hyperparathyroidism is.gd/holick1212

PDF is attached at the bottom of this page

See also Vitamin D Life

short URL = http://is.gd/holick1212

Vitamin D: A D-Lightful Vitamin for Health – Holick Dec 2012

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- Major review of Vitamin D – Holick Feb 2013 Vitamin D presentation by Dr. Holick Spring 2012 Vitamin D review – Holick Jan 2013 Vitamin D update – Holick Sept 2013 Vitamin D, Sunlight and Cancer Connection – Holick Jan 2013

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