How many cups of coffee a day are healthy?

A filter coffee for Breakfast, and two more in the office, an Espresso after lunch, and 16 at a Cappuccino that Statistically, every adult drinks in the USA per year, about 162 liters of coffee. Researchers have been squabbling for years, how healthy is the black broth. Recently, several studies indicated that moderate coffee consumption may even have a positive effect on health. But what is moderate?

Australian researchers now want to have one answer to this is found: Thus, less than six cups of filter coffee a day are safe, at least when it comes to the risk for cardiovascular disease, they report in the journal “The American Journal of Clinical Nutrition”.

The researchers evaluated data from more than of 347,000 people between the ages of 37 and 73 years of age, which are stored in a Biobank in the UK. Information about nutrition habits, diseases, and the genome of the subjects are included. Participation in the study was voluntary.

Six cups of coffee increases the risk

By using the information, researchers from the University of South Australia investigated whether there is a connection between coffee consumption and hypertension. Hypertension is considered a risk factor for numerous diseases, such as heart attacks, heart failure and strokes. The most important findings:

  • Compared to people who drank one to two cups of coffee per day, had Non-coffee drinkers diseases an eleven-percent higher risk for cardiovascular disease. This supports previous studies that suggest that coffee might even be beneficial for the health.
  • Who drank decaffeinated coffee had an average of a seven percent higher risk.
  • Six cups of coffee per day the risk for cardiovascular increased-diseases, however, dramatically, by an average of 22 percent.

“Based on our data, six cups of the turning point, from the caffeine the risk for cardiovascular disease increases,” says study Hypponen author and Epidemiologist Elina. Anyone who wants to protect his heart and high blood pressure avoid should drink less than six cups of coffee a day. From the data it is not clear, however, how big the cups were and how the coffee was prepared.

Also, whether the higher risk for cardiovascular disease alone, coffee consumption is due, not answered in the study. There are many factors that can favor the disease. A heart attack only to excessive coffee consumption is due, therefore nearly impossible, no matter how big the data is based.

It is conceivable, for example, that those who drink a lot of coffee, have a lot of Stress, little sleep, and thereby become ill. With the coffee, the disease would have to do nothing.

In the end, the same as for many things in life, the same is true for coffee Hypponen argued. “If you overdo it, it will pay for your health.”