A study published in JAMA Dermatology has indicated that increased caffeine intake from coffee is inversely associated with the risk of rosacea in women.
The cohort study included 82,737 female participants in the Nurses’ Health Study II, which was established in 1989, with follow-up conducted biennially between 1991 and 2005. All analysis took place between June 2017 and June 2018.
There were 4,945 cases of rosacea reported and authors found a significant inverse association between risk of rosacea and increased caffeine intake, particularly that from coffee. This association was not found for caffeine intake from other food sources such as tea, soda, and chocolate.
Authors concluded, “Our findings do not support limiting caffeine intake as a means to prevent rosacea and may have implications for the causes of and clinical approach to rosacea. Further studies are required to explain the mechanisms of action of these associations, to replicate our findings in other populations, and to explore the relationship of caffeine with different rosacea subtypes.”