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  • Writer's pictureBig Rick Stuart

This Is the Best Way To Prepare Coffee for Your Heart Health

Coffee consumption and mortality from cardiovascular diseases and total mortality: Does the brewing method matter? (YES!)

The aim of this study was to investigate whether the coffee brewing method is associated with any death and cardiovascular mortality, beyond the contribution from major cardiovascular risk factors.

Methods and results

Altogether, 508,747 men and women aged 20–79 participating in Norwegian cardiovascular surveys were followed for an average of 20 years with respect to cause-specific death

The health benefits of filtered coffee and risks of unfiltered coffee, according to the study

Among the participants, 59 percent drank filtered coffee, 20 percent drank unfiltered coffee, 9 percent drank both types, and 12 percent didn't drink coffee at all. And it's clear that filtered coffee wins: "Unfiltered brew was associated with higher mortality than filtered brew, and filtered brew was associated with lower mortality than no coffee consumption," wrote the study authors. The amount also made a difference. "Among coffee consumers, the reference group of 1 to 4 cups a day of filtered brew had the lowest mortality, and >9 cups a day of unfiltered brew had the highest mortality."

So, what's the deal with unfiltered coffee? The study authors wrote that it's been found to contain high amounts of oil compounds called diterpenes (like cafestol and kahweol), which can raise your LDL cholesterol levels. The good news is that the most popular brew methods—namely, using a drip coffee machine, K-cup machine, or making a pour-over—make filtered coffee. The paper filter required, as mentioned, will remove most of these cholesterol-raising oils.

Nutrition expert Keri Gans, MS, RD, confirmed the legitimacy of the study's results. "Research [shows] that drinking unfiltered coffee is associated with a higher mortality rate than filtered coffee," she previously told Well+Good.

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