Adults with psoriasis and/or psoriatic arthritis can supplement their standard medical therapies with dietary interventions to reduce disease severity, according to dietary recommendations released by the National Psoriasis Foundation Medical Board. Researchers used literature from prior systematic reviews as well as additional primary literature published from from January 1, 2014, to August 31, 2017, that evaluated the impact of diet on psoriasis. The quality of included studies was assessed using the Newcastle-Ottawa scale for observational studies and the Cochrane Risk of Bias Tool for interventional studies. They made evidence-based dietary recommendations, which were voted on by the National Psoriasis Foundation Medical Board. Key observations include:
- These studies represent 77,557 unique participants of which 4,534 have psoriasis.
- Based on the literature, they strongly recommend dietary weight reduction with a hypocaloric diet in overweight and obese patients with psoriasis.
- Based on low-quality data, select foods, nutrients, and dietary patterns may affect psoriasis.
- Dietary interventions should always be used in conjunction with standard medical therapies for psoriasis and psoriatic arthritis.
Ford AR, Siegel M, Bagel J, et al. Dietary recommendations for adults with psoriasis or psoriatic arthritis from the medical board of the National Psoriasis Foundation. A systematic review. [Published online ahead of print June 20, 2018]. JAMA Dermatology. doi:10.1001/jamadermatol.2018.1412.
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