Vitamin D and Macular Degeneration. Does low Vitamin D levels risk Macular Degeneration?

It appears that higher blood levels of Vitamin D can lessen the risk of early forms of macular degeneration. The findings were reported in the May 2007 issue of the Archives of Ophthalmology. This is a very important study and adds to the large body of research that points to the fact that Vitamin D is an essential compound, and low Vitamin D is related to many diseases. Of note, even modest increases in Vitamin D levels showed a protective affect, lowering the risk of macular degeneration by 36%. Most labs list the lower limits of normal for Vitamin D to be between 20 to 25 ng/mL. In this study patients in the lowest level of Vitamin D of less than 16.8 ng/mL had a relative risk of 1.0. Levels between 16.8-21.6 ng/mL had a risk of 0.97, not much difference. At levels of 21.6-27.24 the relative risk was 0.75 or a 25% decrease. From 27.24-33.65 the risk was 0.70, and greater than 35 the relative risk was 0.64 or a 36% decrease.

Now here is what I think is exciting and most significant. Many experts, such as those at the Vitamin D Council are suggesting that all of us should have our Vitamin D levels checked and maintain levels of at least 35 ng/ml and up to 50-80 ng/ml. These levels can not generally be obtained with diet alone and one usually needs supplementation to maintain these levels throughout the year. I would strongly recommend that anyone with macular degeneration have their Vitamin D level checked and work with their doctor to bring their level into the upper end of the normal range. I might also suggest that one might want to read a bit more about Vitamin D at the Weston A price Founation.