Evidence supports vitamin D to prevent rheumatoid arthritis

But high doses may be necessary once the disease is established

Maintaining sufficient levels vitamin D may help to prevent the onset of inflammatory diseases, such as rheumatoid arthritis, a study confirms.

vitamin D

But it is less effective once the disease is established, the researchers say. This is because of vitamin D insensitivity at the site of active disease.

Another key finding is that the impact of vitamin D on inflammatory disease cannot be predicted using cells from healthy people, or even from the blood of patients with inflammation, because cells from the diseased tissue are very