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Six cups of coffee a day increases risk of heart disease

Cover Media logo Cover Media 6 days ago
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Six cups of coffee a day increases the risk of heart disease by 22 per cent, according to new research.

The study by the University of South Australia was based on U.K. Biobank data of more than 347,000 participants aged between 37 and 73 years old, in an effort to understand if some of us are more resilient to coffee's effects than others.

The researchers focused on the caffeine-metabolising gene CYP1A2, which is believed to help better process caffeine.

They found that even those with the CYP1A2 gene, which helped them metabolise coffee four times quicker than others, saw downsides after their sixth cup.

However, on average, most people rarely exceed three or four cups a day. In the U.S., the average American drinks 1.6 cups a day, while in Finland, the average is a staggering eight cups a day, according to the International Coffee Organisation.

"At the doses most people drink it probably won’t have much of an effect, probably because most people auto-titrate,” Dr. Christopher Labos, a cardiologist at McGill University in Quebec, Canada, said.

"Anyone very sensitive to caffeine - i.e. who gets palpitations from it - will self-curtail their consumption in order to feel better. So the people who drink a lot of coffee are probably immune to it," he suggested.

In an op-ed for the Montreal Gazette in 2014, Labos broke down various studies on the risks of caffeine, and found that coffee could increase your heart attack risk by 50 percent – if you consume two million cups.

"Just stay under the two million mark," he joked.

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