How many cups of coffee a day are healthiest? Researchers: Six cups of coffee is the inflection point.

Original title: How many cups of coffee a day is the healthiest? Researchers: Six cups of coffee is the inflection point
statistics show that German adults drink about 162 liters of coffee a year. For years, researchers have debated the health of drinking coffee. Several recent studies have shown that drinking coffee in moderation can have a positive impact on your health. But what does the appropriate amount mean?
researchers may now have the answer, German weekly Der Spiegel reported on May 15. Drinking no more than six filtered cups of coffee a day is harmless, at least in terms of cardiovascular risk, they report in the american Journal of Clinical Nutrition, a professional journal.
researchers evaluated data on more than 347,000 participants between the ages of 37 and 73, including information about eating habits, diseases and participant genomes.
University of South Australia used the information to investigate whether high blood pressure was linked to coffee drinking. High blood pressure is considered a risk factor for a variety of diseases, including myocardial infarction, heart failure and stroke. The researchers' most important findings were as follows:
1. People who drank one to two cups of coffee a day had an 11 percent higher risk of cardiovascular disease than those who drank one to two cups of coffee a day. This supports previous studies that suggested that drinking coffee may be good for your health.
2. People who drank caffeine-free coffee had an average 7 percent higher risk of cardiovascular disease.
who drank more than six cups of coffee a day, the risk of cardiovascular disease increased dramatically, by an average of 22 per cent.
, an epidemiologist and author of the study, said: "Based on our data, six cups of coffee is an inflection point, and caffeine above this level increases the risk of cardiovascular disease. "So if you want to protect your heart and avoid high blood pressure, drink less than 6 cups of coffee a day. However, the size of the cup and the way the coffee is made cannot be seen from the data.
the study also did not answer whether the increased risk of cardiovascular disease was due only to coffee consumption, The Associated Press reported. Many factors can lead to this kind of disease. Predictable, for example, people who usually drink a lot of coffee are those who are stressed, sleep less, and get sick as a result. Therefore, their illness may have nothing to do with coffee.
, like many things in life, "if you overdo it, your health will pay for it," says Mr. Xu.