What the Research Really Shows on Coffee & Cancer

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Coffee may lower the risk of several types of cancer, according to recent studies reviewed by researchers at the American Cancer Society.

The following excerpt was originally posted at the American Cancer Society

AICR has named February Cancer Month. Learn more

To learn more about science, coffee, and why the research matters, join the experts from the NCA Scientific Leadership Council for “The Coffee Science Fair: A Fun Look at a Serious Topic,” a special educational session at the NCA 2019 Convention in Atlanta, GA on March 8.


Scientists have been investigating the links between coffee and cancer for decades. And while our understanding of coffee’s potential health benefits has improved with advances in research, there’s still more to learn.

In 2016, an expert panel convened by the International Agency for Research on Cancer (IARC) — the arm of the World Health Organization that is responsible for assessing whether certain substances cause cancer — could not conclude that drinking coffee is carcinogenic based on the current evidence available.

Yet the coffee-cancer connection has recently reappeared in the news, due to the ongoing Prop 65 legislation in California to put misleading “cancer warning labels” on coffee.

So, what do coffee drinkers need to know?

In following interview written by Elizabeth Mendes, American Cancer Society researchers Susan Gapstur, PhD, and Marjorie McCullough, ScD, explain what the studies really show when it comes to coffee and cancer, and discuss what other research is still needed.

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Warning: California’s Coffee “Cancer” Labels May Be Hazardous to Public Health

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Last week, a Los Angeles judge ruled that coffee roasters and retailers must serve up a cancer warning with coffee sold in California under Prop. 65 regulations, based on the naturally-occurring presence of acrylamide from the roasting process.

The decision goes against what the science shows us – including the conclusions of the World Health Organization. Study after study, conducted independently and published in peer-reviewed journals, has shown the potential health benefits of drinking coffee — from liver health to living longer.

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