Psoriasis may be linked to a deficiency of vitamin D, but taking too much can be dangerous. Topical vitamin D creams can help treat outbreaks, but the effectiveness of treatments varies widely. Studies suggest that light therapy may be more important than vitamin D in improving psoriasis. The genetic component of vitamin D metabolism may also play a role. Further research is needed to develop appropriate treatments.
Vitamin D and psoriasis are linked in many different ways. Some studies suggest that this skin condition may be caused by or associated with a deficiency of this necessary vitamin, and it is also used in topical preparations to treat outbreaks of psoriasis. Patients should be aware that taking too much vitamin D can be dangerous, as it is possible to overdose and develop health problems as a result. Any therapy involving this vitamin should be canceled with a doctor, and people should stop if they develop harmful side effects.
Psoriasis involves the development of red, scaly plaques on the skin. Once it appears, it can be difficult to get rid of and can spread to other areas of the body over time. Patients being treated for psoriasis commonly begin with conservative measures, eventually becoming more aggressive about managing the condition over time. The effectiveness of available treatments varies widely. Some patients experience relief from medications and regimens that do not benefit others at all. Studies of vitamin D and psoriasis have explored possible connections, but have been hampered by the variable ways in which patients respond to treatment.
In the case of vitamin D and psoriasis, people with the skin condition appear to have lower levels of vitamin D in their bodies. Studies using light therapy were originally thought to improve skin by boosting vitamin D levels, but follow-up suggested that light was actually more important than the vitamin. Some patients finish phototherapy with low vitamin D levels, but their psoriasis improves, demonstrating that light is clearly the determining factor in the improvement.
It is possible, because there is a genetic component, that people who have difficulty metabolizing vitamin D are also more susceptible to psoriasis. This may be why the condition can be seen in people with vitamin D deficiencies, but does not respond to oral forms of the vitamin. However, topical applications of vitamin D appear to play a role in the treatment of psoriasis. Vitamin D and psoriasis are related in the sense that skin creams with vitamin D or analogues can soften the skin, reduce irritation and help resolve flare-ups.
The connection between vitamin D and psoriasis is under study. This skin condition appears to be influenced by a number of factors. Connecting the dots to find out why some people get it and why the severity can be so variable will allow researchers to develop appropriate treatments. Patients undergoing treatment may find it helpful to work with a psoriasis specialist who will have access to the latest information on treatments and may be able to provide more treatment options for patients.
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