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Diet and Psoriasis


Two specific things you may want to check on are:

Vitamin D : A study from Spain found that people with psoriasis had lower levels of vitamin D. This vitamin helps keep your immune system working correctly. Ask your doctor to check your vitamin D levels, McCusker says. You may need a prescription-strength supplement.

Fish oil : This can help your body tame inflammation. "I don't think fish oil can turn off psoriasis," McCusker says, but "people who take it tend to be a little less itchy, and their plaques tend to be a little less red." You can also get the omega-3s that are in fish oil by eating fish such as salmon, tuna, or mackerel a couple of times a week.

Small studies also found that fish oil may reduce some side effects of medicines used to treat psoriasis, such as:

  • High triglycerides from a type of drug known as retinoids, such as Soriatane (acitretin ), Aceret, Acetec, and Zoratame
  • Kidney problems from cyclosporine, such as Neoral, Sandimmune, Restasis, Gengraf Capsules, and Gengraf Oral Solution


WebMD Feature Reviewed by Debra Jaliman, MD on November 02, 2015



Joel M. Gelfand, MD, associate professor of dermatology and epidemiology, University of Pennsylvania, Philadelphia.

Meagen McCusker, MD, assistant professor of dermatology, University of Connecticut Health Center, Farmington.

NIH: "Questions and answers about psoriasis."

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Jensen, P. JAMA Dermatology, July 2013.

Lakdawala, N. Clinics in Dermatology, November-December 2013.

Cassano, N. International Journal of Dermatology, November 2011.

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