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The Buzz on Coffee

The latest research shows your morning pick-me-up may be brimming with health benefits.
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WebMD Weight Loss Clinic - Expert Column

There's good news for the 108 million Americans who wake up and smell the coffee each day. The latest research findings suggest your morning java may be better for you than you think.

Coffee is a rich source of disease-fighting antioxidants. And studies have shown that it may reduce cavities, boost athletic performance, improve moods, and stop headaches -- not to mention reduce the risk of type 2 diabetes, colon cancer, liver cancer, gall stones, cirrhosis of the liver, and Parkinson's diseases.

But before you run out to your local coffee shop, there are a few points to consider about coffee.

Coffee Studies

Over the years, some 19,000 studies have looked at the health impact of drinking coffee. "Overall, the research shows that coffee is far more healthful than it is harmful," Tomas DePaulis, PhD, research scientist at Vanderbilt University's Institute for Coffee Studies, tells WebMD. "For most people, very little bad comes from drinking it, but a lot of good."

The studies have shown that regular coffee drinkers can reduce their risk of Parkinson's disease by 80%, the risk of colon cancer by 25%, the risk of cirrhosis of the liver by 80%, and cut the risk of gallstones in half. In one study, people who drank 2 cups a day of decaf coffee had half the risk of rectal cancer, compared with tea or caffeinated coffee drinkers.

The amount of coffee consumed in the studies has varied widely. But in the research into type 2 diabetes and liver cancer, the more you drink, the lower your risk appears to be.

Active Ingredients

So just what does coffee contain that gives it such healthful properties?

Coffee beans contain disease-ravaging antioxidants, called quinines, which become more potent after roasting. According to an American Chemical Society news release, coffee is the leading source of antioxidants in American diets -- in part because we drink a ton of it.

This type of antioxidant, along with the magnesium found naturally in coffee, affect blood sugar levels and are thought to be responsible for the link to a lower risk of type 2 diabetes.

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