The vitamin supplements patients with psoriasis often use include vitamin D, vitamin B12, selenium, and omega-3 fatty acids in fish oils, according to a report in Journal of American Academy of Dermatology.   Psoriasis is a skin condition that is characterized by scaly, patches, papules, and plaques with red color that often itch.   Authors report that evidence is strong that fish oil renders benefits in patients with psoriasis while more research is needed to confirm the therapeutical effect of other alternative remedies.  (David Liu)Millsop JW, Bhatia BK, Debbaneh M, Koo J, Liao W.  Diet and psoriasis, part III: Role of nutritional supplements.  J Am Acad Dermatol. 2014 Apr 25.