Vitamin D reduces risk of Macular Degeneration by 59%
Age-related macular degeneration is a type of damage to the retina that affects older adults and results in a loss of vision
in the center of the visual field (the macula). This condition makes it difficult or impossible to read or to recognize faces,
but it does not destroy peripheral vision.
A person’s risk of getting macular degeneration is strongly influenced by genetics — people with a family history of this
condition are very likely to acquire the condition themselves.
A number of nutritional supplements have been shown to be useful in preventing AMD, including the following products carried
by LifeLink: Acetyl-L-Carnitine, trans-Ferulic Acid, Lutein, Lycopene, Omega-3 Fish Oil, Zinc Orotate, Vinpocetine, Vitamin
E Tocotrienol Complex, and Vitamin E.
And now another supplement can be added to this list of AMD-fighters: Vitamin D.
A study widely reported in the news this month (April of 2011) has shown that higher vitamin D consumption goes hand-in-hand with lower incidence of Macular Degeneration — up to the age
of 75, at any rate.
Since vitamin D has a glorious safety record, it makes sense to use it in substantial doses to prevent AMD — especially if
there is any family history of AMD. The dosages suggested in the popular press are ridiculously low (720 i.u./day) — barely enough to prevent gross vitamin D deficiency. A dosage of at least 2000 i.u./day would make more sense, and it would
provide a significant protection against many types of cancer as well.
This AMD study was part of the CAREDS Study, which in turn was part of the Women's Health Initiative Observational Study.
It should be noted that the Women’s Health Initiative has received a lot of criticism for shoddy interpretation of the data
it collected on the supposed dangers of HRT (hormone replacement therapy). The AMD study, however, involved different researchers
than the HRT study.
LifeLink carries two vitamin D products:
- D3ZO is a high-potency vitamin D3 supplement with zinc orotate as a bioavailability enhancer.
- Formula CS Plus is a medium-potency vitamin D supplement that also aims to protect against osteoporosis by supplying a variety of bone enhancers.
 Macular Degeneration Wikipedia website
 A common haplotype in the complement regulatory gene factor H (HF1/CFH) predisposes individuals to age-related macular degeneration PNAS May 17, 2005 vol. 102 no. 20 7227-7232
 Evidence for an inflammatory process in age-related macular degeneration gains new support PNAS May 17, 2005 vol. 102 no. 20 7053-7054
 Vitamin D protects eyesight later in life ABC2 News website
 Vitamin D Status and Early Age-Related Macular Degeneration in Postmenopausal Women Arch Ophthalmol. 2011;129(4):481-489.
 Vitamin D Protects Against Age-Related Vision Loss ABC News Health website