Some mornings it might feel like you can’t get enough of it, but a new study suggests too much coffee can be harmful.
A new study from the University of South Australia suggests there is a point where drinking coffee becomes a health risk.
"Coffee is the most commonly consumed stimulant in the world — it wakes us up, boosts our energy and helps us focus — but people are always asking 'How much caffeine is too much?' " professor Elina Hyppönen, one of the study’s researchers, said in a press release.
Researchers at the university analyzed the health records and the self-reported coffee consumption of 347,077 people between the ages of 37 and 73 in the UK Biobank. The Biobank is a national and international health resource with unparalleled research opportunities, open to all bona fide health researchers.
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The study found that people who drink one to two cups of caffeinated coffee a day had a lower risk of cardiovascular disease than people who drank decaf or no coffee at all. But for individuals who consumed six or more cups of caffeinated coffee a day, the risk of cardiovascular disease increased 22%. The researchers found no genetic cause for this increase.
This is the first time an upper limit has been placed on safe coffee consumption and cardiovascular health.
"In order to maintain a healthy heart and a healthy blood pressure, people must limit their coffees to fewer than six cups a day — based on our data six was the tipping point where caffeine started to negatively affect cardiovascular risk," Hyppönen said.
This story was written by Nancy Clayton of the Atlanta-Journal Constitution.