Older women who drink four or more cups of decaffeinated coffee a day are more than twice as likely to develop rheumatoid arthritis (RA) than regular coffee drinkers, according to research presented recently at an American College of Rheumatology meeting.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more


Dr Ted Mikuls, assistant professor at the University of Alabama-Birmingham, led the 11-year study into the link between ‘decaff’ and RA, following the consumption habits and health of 32,000 woman aged between 55 and 69 in the Iowa area.


He concluded: “Women who drank regular coffee did not have the increased risk of RA – so it seems as if there is something about the decaffeinated coffee that is increasing the risks.”


Mikuls believes that the increased risk could be caused by the preparation and processing of decaffeinated coffee, which has involved strong chemical solvents. The majority of coffee makers today do employ other safer methods to decaffeinate coffee however, he stressed.


This is the first study of its kind to link the painful auto-immune disorder and decaffeinated coffee, but Mikuls stresses that there is no cause for alarm, and that as yet the link is only an “association”. “There is a long way to go before it becomes a positive link,” he added.

GlobalData Strategic Intelligence

US Tariffs are shifting - will you react or anticipate?

Don’t let policy changes catch you off guard. Stay proactive with real-time data and expert analysis.

By GlobalData

Just Food Excellence Awards - Nominations Closed

Nominations are now closed for the Just Food Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact.

Excellence in Action
Winning five categories in the 2025 Just Food Excellence Awards, Centric Software is setting the pace for digital transformation in food and FMCG. Explore how its integrated PLM and PXM suite delivers faster launches, smarter compliance and data-driven growth for complex, multi-channel product portfolios.

Discover the Impact