rct
    2023
    High Quality

    Effect of Vitamin D Supplementation on Psoriasis Severity in Patients With Lower-Range Serum 25-Hydroxyvitamin D Levels: A Randomized Clinical Trial

    Jenssen M, Furberg AS, Jorde R, Wilsgaard T, Danielsen K

    Published in JAMA Dermatology

    Methodology

    Randomized, double-blind, placebo-controlled trial across two winter seasons in Tromsø, Norway: 122 adults with active plaque psoriasis and 25(OH)D below 24 ng/mL received cholecalciferol (100,000 IU loading then 20,000 IU/week) or placebo for four months.

    Key Findings

    Oral vitamin D supplementation produced no significant improvement in PASI or in secondary measures (Physician Global Assessment, self-administered PASI, DLQI) compared with placebo despite raised 25(OH)D levels.

    Conclusions

    Oral vitamin D supplementation did not reduce psoriasis severity in patients with lower-range vitamin D status.

    Limitations

    Mostly mild disease (mean PASI 3.1) leaving little room for improvement; four-month duration; single centre at high latitude.

    Supplements Studied

    Vitamin D
    Vitamin

    This randomized, double-blind placebo-controlled clinical trial ... Adults from the general population in Tromsø with active plaque psoriasis and 25-hydroxyvitamin D (25[OH]D) levels of less than 24 ng/mL were included.

    Related Health Concerns

    Study Details

    Year:2023
    Sample Size:122
    Duration:16 weeks
    Quality Score:9/10

    Disclosures

    Funding

    Public/government

    This information is for educational purposes only. Always consult a healthcare professional before starting any supplement regimen.