The Sunshine Vitamin D

As part of my Nutritional Therapy course I had to complete a scientific review of current research on the impact a single nutrient might have on a specific disease.   I chose Vitamin D and Osteoporosis [OP].  I wanted to answer the question ‘does current research show that adequate levels of Vitamin D have a positive impact on OP’?   Turns out that it does!   Not surprising I hear you say!  Most of us already know from TV commercials that Vitamin D is necessary for healthy bones and to absorb calcium.  But how much is adequate?   I discovered there are many and widely differing opinions on this and just when I thought I had this bit figured out, I learned that no vitamin works in isolation in the body anyway.   Plus, there are so many factors other than nutrients involved in disease progression.   I found out Vitamin D is not even a vitamin really!   It was designated a ‘vitamin’ based on its role as a dietary factor that aided in the cure of rickets.  It is now understood to be more ‘hormone like’ in its action.   Did you know, it is difficult to get adequate Vitamin D through diet alone?  Vitamin D is not even required in the diet if there is sufficient sunlight to allow its production from pro-Vitamin D molecules in the skin.  It is made in the body with its own Vitamin D receptors [VDRs].  For this reason it could be classified as a hormone rather than a vitamin (a vital amine).  Vitamin D deficiency is a worldwide epidemic across all ages, genders and geographic locations with multiple implications on human health, due to its role in various bodily systems.   Even if you can avail of adequate year round sun-exposure on bare skin, the time of day, the colour of your skin and your age will also influence how much Vitamin D your body can produce.   A Nutritional Therapist seldom recommends a single vitamin but Vitamin D could be the exception to that rule.  Deficiency has an impact on so many body systems yet symptoms of deficiency are not very obvious.  The only way to really know if you are deficient is to take a 25(OH)D blood test.   Are you getting enough of the ‘Sunshine’ Vitamin?  Let me help you figure it out!

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