Sorting Out Coffee’s Contradictions

Jane Brody sums up what’s known about coffee. Seems to me if one were to dunk broccoli into one’s coffee, you could live about forever.

Drinks containing usual doses of caffeine are hydrating and, like water, contribute to the body’s daily water needs.

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“Contrary to common belief,” concluded cardiologists at the University of California, San Francisco, there is “little evidence that coffee and/or caffeine in typical dosages increases the risk” of heart attack, sudden death or abnormal heart rhythms.

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But in a study of 155,000 nurses, women who drank coffee with or without caffeine for a decade were no more likely to develop hypertension than noncoffee drinkers. However, a higher risk of hypertension was found from drinking colas. A Johns Hopkins study that followed more than 1,000 men for 33 years found that coffee drinking played little overall role in the development of hypertension.

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Recent disease-related findings can only add to coffee’s popularity. A review of 13 studies found that people who drank caffeinated coffee, but not decaf, had a 30 percent lower risk of Parkinson’s disease.

Another review found that compared with noncoffee drinkers, people who drank four to six cups of coffee a day, with or without caffeine, had a 28 percent lower risk of Type 2 diabetes. This benefit probably comes from coffee’s antioxidants and chlorogenic acid.