RCT of 122 active plaque Psoriasis pts (38F, 55M) with low vitamin D (~15). Rx w/ either PBO or Vit D (100K IU, followed by 20K IU/wk x 4 mos). Vitamin D supplementation had no effect on psoriasis severity (but pts had mild PSO). https://t.co/JXtEBaop3c https://t.co/ScGtBUIrm0