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MEDICALEXAMINER

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HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS • HEALTH • MEDICINE • WELLNESS

MARCH 8, 2019

AIKEN-AUGUSTA’S MOST SALUBRIOUS NEWSPAPER • FOUNDED IN 2006

The straight scoop on the world’s second-most consumed beverage after plain water.

What’s going on with coffee? One day a study says it’s suspected of causing cancer, the next day another study proclaims its salubrious properties.   Harvard University’s T.H. Chan School of Public Health recently released a comprehensive overview of coffee, the world’s most popular beverage other than water. They examined coffee’s on-again, offagain connection with health. After all, just last year California made headlines around the world by requiring all coffee shops and sellers in the state to label every cup and bean they sold as a potential carcinogen, a cancer-causing agent.   That decision led to an uproar among consumers and scientists alike, and probably had little effect on coffee sales.   The decision was based on a collection of technicalities. Four years previously the chemical acrylamide was classified as “reasonably anticipated to be a human carcinogen” based on studies in rats. Acrylamide is present in

coffee, along with more than a thousand other naturally occurring chemical compounds. By definition and by law, the California judge who made the warning label ruling had no choice: an earlier California law mandated that consumers had to be warned about any chemical listed on specified lists of carcinogens.   Cancer researchers immediately responded, stating that coffee not only does not need a warning label, it can protect against cancer and other diseases. The Director of Research at the American Institute of Cancer Research (AICR), Dr. Nigel Brockton, pointed out in the wake of the California ruling that “it is unwise, in this case, to extrapolate studies from animals to humans because the metabolism of acrylamide differs considerably, and the doses used for lab studies are not comparable. The beneficial effects of coffee, even for relatively high intakes, have been demonstrated and are linked to improvements in insulin control, antioxidant responses and reduced inflammation — all of which provide protection against cancer.”   The AICR also has stated that coffee may reduce risk for endometrial and liver cancers.   In the wake of these and hundreds of other reactions from cancer researchers, a proposal

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was made in January to exempt coffee from Proposition 65, the California law which mandated the warning labels. The state’s Office of Administrative Law is currently reviewing the proposal.   Coffee has other health benefits. A meta-analysis (a review of previously published studies) of more than 45,000 people followed for up to 20 years found that coffee consumption, caffeinated more than decaf, was associated with a lower risk for developing type 2 diabetes. The specific benefit found was 8% for 1 cup per day up to 33% for 6 cups a day. Another meta-analysis found a 30% decrease in the incidence of diabetes for the heaviest coffee drinkers (up to 10 cups a day) compared to the lowest consumers. (The benefit was 20% for drinkers of decaf.)   When it comes to heart health, the Harvard overview acknowledged that some people can get the jitters, literal heart palpitations from drinking coffee. Despite that, overall and for most people, regular coffee consumption may lower the risk of heart disease and stroke. The data is well established: one study it cited followed more than 83,000 women; another some 37,500; and still another a meta-analysis of 21 clinical studies. All showed significant heart Please see COFFEE page 3

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