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A systematic review by the Medical Board of the National Psoriasis Foundation examined the role of diet in managing adult patients with psoriasis and/or psoriatic arthritis and suggest that dietary interventions to reduce disease severity.
A metanalysis of 55 studies and 4534 patients with psoriasis examined the role of weight loss, gluten-free diets, vitamin supplementation on reducing psoriatic disease activity.
Based on the literature, the NPF recommended:
- Strongly recommended dietary weight reduction with a hypocaloric diet in overweight and obese patients with psoriasis
- Weakly recommend a gluten-free diet only in patients who test positive for serologic markers of gluten sensitivity.
- In psoriatic arthritis, they weakly recommend vitamin D supplementation and dietary weight reduction with a hypocaloric diet in overweight and obese patients.
These National Psoriasis Foundation Medical Board suggestions will help guide clinicians regarding the utility of dietary interventions in adults with psoriatic diseases.