Better Nutrition - - TREND WATCH -

Vi­ta­min D is a rel­a­tively pop­u­lar in­gre­di­ent in topi­cal creams and oint­ments used to treat pso­ri­a­sis, but can sup­ple­men­tal D also be ef­fec­tive? That’s the ques­tion asked by Michelle In­gram, PhD, at Massey Uni­ver­sity in New Zealand.

The study was in­tended to de­ter­mine whether vi­ta­min D sup­ple­ments were more ef­fec­tive than placebo at eas­ing pso­ri­a­sis symp­toms among 101 par­tic­i­pants. The main find­ings of the study were in­con­clu­sive due to an un­ex­pected in­crease in vi­ta­min D lev­els in the placebo group, pos­si­bly due to sun­light. How­ever, In­gram says, fur­ther anal­y­sis showed strong ev­i­dence of a link be­tween higher lev­els of vi­ta­min D and less se­vere pso­ri­a­sis.

“In­ter­est­ingly, this re­la­tion­ship was only found in about two- thirds of our par­tic­i­pants,” says In­gram, “sug­gest­ing that vi­ta­min D may be ben­e­fi­cial for some peo­ple with pso­ri­a­sis, yet make no dif­fer­ence for oth­ers. Un­der­stand­ing the vari­abil­ity of re­sponse to pso­ri­a­sis treat­ments in gen­eral is a long- term chal­lenge and one that fu­ture re­search will hope­fully be able to ad­dress.”

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