Psoriasis risk not increased by coffee
27 March 2012
Coffee or caffeine do not raise the risk of psoriasis, according to findings from a study of 82,500 US women who were free from the disease in 1991.
The prospective cohort study - one which follows a group of similar people over time - asked participants about their daily intake of foods and beverages during the previous year at four-year intervals.
By 2005, 896 cases of psoriasis had developed.
Women with higher consumption of caffeine were more likely to be current smokers and had a higher quantity of alcohol intake. The risk of psoriasis was moderately elevated with both increasing coffee consumption and higher caffeine intake in the age-adjusted mode, but the trend became non-significant once it was adjusted for smoking, meaning that the increased risk was due to smoking, not coffee or caffeine.
Likewise, decaffeinated coffee was not significantly associated with risk of psoriasis.
Last Reviewed: 27 March 2012
- Wenqing Li; Jiali Han; Abrar A. Qureshi. No Association Between Coffee and Caffeine Intake and Risk of Psoriasis in US Women. Arch Dermatol. 2012;148(3):395-397.
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