Low vitamin D levels
How’s this for a frustrating paradox: While people with lupus need to stay out of the sun, a lack of vitamin D—which people usually get from sunlight exposure—may cause lupus symptoms to worsen, according to an Australian study. And that’s not all: Some corticosteroids used to treat lupus may lower vitamin D levels.
Also troubling are findings from Johns Hopkins researchers that low vitamin D levels can increase the risk of organ damage and kidney failure in lupus patients. While more research is necessary, vitamin D supplements may help to prevent or improve lupus symptoms, and this may be something to discuss with your doctor.