Coffee is primarily good for consumption but too much of it is worse than some of the world's deadly killer diseases, reveals a study. The study released on Thursday finds that heavy coffee consumption is associated with a higher death risk in men and women younger than 55.
According to the study published online in the journal Mayo Clinic Proceedings, men younger than 55 who drank more than 28 cups of coffee a week (four cups a day) were at 56% risk more likely to have die from any cause than those who drank less.
Women in the same age bracket were at a much higher of dying than other women. The study looked at about 44,000 men and women ages 20-87 from 1971 to 2002.
"From our study, it seems safe to drink one to three cups of coffee a day," says the study's second co-author Xuemei Sui. "Drinking more than four cups of coffee a day may endanger health," says Sui, assistant professor of exercise science with the Arnold School of Public Health at the University of South Carolina in Columbia.
The study did not find a higher death risk for adults 55 and older. Sui says there may be a bias — the research may not include unhealthy older people because they might have already died.
The reasons for the higher death risk among younger adults are not clear since experts through the years have found both health benefits and problems associated with coffee.
The study ascertains that the caffeine in coffee can elevate heart rate as well as raise blood pressure and blood sugar levels. However, coffee is a major source of antioxidants, says Sui.
Sui says the study didn't find a significant association between coffee consumption and heart disease death. Further research is needed to look at any connection between coffee and cancer, she says.
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