How Coffee Can Help Reduce Inflammation

If you've ever wondered whether your daily cup—or cups—of coffee could be doing more than just waking you up, a recent study offers some concrete insights. Researchers explored whether drinking traditional, manually brewed coffee could influence markers of inflammation and cholesterol in habitual coffee drinkers.

Yes, drinking coffee can help reduce inflammation. In the study, participants who drank 4 cups daily saw modest benefits, and those who had 8 cups showed a 8% drop in interleukin-18, a 16% decline in 8-isoprostane, and a 6% rise in the anti-inflammatory marker adiponectin.

What the Study Looked At

Researchers from Finland and Germany designed a three-phase experiment involving 47 regular coffee drinkers. Each participant underwent three one-month periods:

• First month: no coffee at all (washout)
• Second month: 4 cups per day of traditionally brewed coffee
• Third month: 8 cups per day of the same traditional, manually brewed coffee

The goal was to observe how coffee consumption at different volumes affected key blood biomarkers related to inflammation and lipid metabolism. This design helped isolate the effects of coffee itself, removing other dietary variables over time.

What Is Traditional, Manually Brewed Coffee?

In the context of the study, “traditional handmade boiled coffee” refers to coffee prepared by boiling ground coffee in water—similar to methods like Turkish coffee or cowboy coffee—rather than filtered, espresso, or instant brewing. While the exact method wasn’t specified beyond “traditional,” it implies coarse grinding and full immersion or boiling without paper filtration.

This type of brewing contrasts with modern filtered or espresso techniques and was chosen to represent conventional, unfiltered coffee consumption in certain European regions.

Blood Markers That Changed

By analyzing blood samples at the end of each phase, researchers tracked changes in three key biomarkers:

• Interleukin-18 (IL-18): a pro-inflammatory cytokine, decreased by 8% during the 8-cup phase
• 8-Isoprostane: a marker of oxidative stress, dropped by 16%
• Adiponectin: an anti-inflammatory hormone, increased by 6%

These results suggest that regular consumption of multiple cups of traditionally brewed coffee can reduce subtle, low-grade inflammation and support better regulation of oxidative and inflammatory pathways in the body. Adiponectin’s increase is particularly notable, as higher levels are generally linked to reduced risk of cardiovascular conditions.

HDL Cholesterol Regulation

In addition to inflammation markers, researchers noted that coffee intake appeared to help stabilize levels of high-density lipoprotein (HDL) cholesterol—the “good” cholesterol. While the exact numerical changes weren’t detailed in the summary, the report highlighted that coffee played a role in its modulation.

This indicates that coffee might contribute not just to reducing harmful inflammation, but also to balancing lipid profiles in ways that support heart health, especially when consumed regularly in moderate-to-high quantities (4–8 cups/day).

Frequently Asked Questions

How many cups of coffee did participants drink in the study?

Participants drank 0 cups in the first month (control), 4 cups per day in the second month, and 8 cups per day in the third month. All coffee was traditionally brewed by boiling, similar to methods such as Turkish or cowboy coffee.

What kinds of inflammation markers were measured?

Researchers measured interleukin-18 (a pro-inflammatory cytokine), 8-isoprostane (a marker of oxidative stress), and adiponectin (an anti-inflammatory hormone). After 8 cups per day, IL-18 dropped 8%, 8-isoprostane fell 16%, and adiponectin rose 6%.

Did the type of coffee brewing matter?

Yes. The study used only traditional, manually brewed (boiled) coffee—not filtered, espresso, or instant. This method likely impacts the extraction profile and possibly the inflammatory effects compared to other brewing styles.

Can drinking coffee really reduce inflammation?

The study found modest but measurable reductions in key inflammatory markers after drinking 4 to 8 cups daily of traditional boiled coffee. Interleukin-18 and 8-isoprostane dropped, while adiponectin increased, suggesting a mild anti-inflammatory effect under these specific conditions.

Does coffee also affect cholesterol?

Yes. The study reported that coffee intake helped regulate high-density lipoprotein (HDL) cholesterol levels, indicating a potential role in supporting healthier blood lipid profiles alongside its anti-inflammatory impact.

Recommended FrontStreet Beans for Brewing Traditionally

For those replicating traditional, boiled-style coffee at home, try FrontStreet Coffee’s Ethiopia Humbera—bright and juicy with blueberry and citrus notes, ideal for full-immersion brewing. Their Yirgacheffe offers floral and lemony tones, great for manual methods. Both beans highlight clarity and acidity, bringing out nuanced flavours even in non-filtered brews. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.