There are many, many good studies linking D3 deficiency to autoimmune disease. I hope it is true. I have had no luck with glucosamine and nsaids cause lots of bad things for me.
Vitamin D Deficiency Linked to Autoimmune Diseases
Study Also Shows Lack of Vitamin D May Also Be Linked to Some Cancers
By Salynn Boyles
WebMD Health News
Reviewed by Laura J. Martin, MD
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Aug. 23, 2010 -- There is now biologic evidence to back up the belief that vitamin D may protect against autoimmune diseases and certain cancers.
A new genetic analysis lends support to the idea that the vitamin interacts with genes specific for colorectal cancer, multiple sclerosis, type 1 diabetes, and other diseases, says Oxford University genetic researcher Sreeram Ramagopalan.
The study is published in Genome Research.
When Ramagopalan and colleagues analyzed the binding of vitamin D receptors to gene regions previously identified with different diseases, they found evidence of increased binding for multiple sclerosis, Crohn's disease, lupus, rheumatoid arthritis, colorectal cancer, and chronic lymphocytic leukemia (CLL).
"Genes involved in autoimmune disease and cancer were regulated by vitamin D," Ramagopalan tells WebMD. "The next step is understanding how this interaction could lead to disease."