Are green coffee bean supplements worth all the hype?
Green coffee bean supplements are the latest craze in weight loss, and now there’s new research that could send even more folks flocking to drug stores to pick up a bottle. According to a small research study done last year, the supplements contain extracts from green coffee beans in their raw, unroasted state, which can help boost weight-loss. Chlorogenic acids contained in green coffee are packed with antioxidants that are thought to be the reason for the beans distinctive health perks.
Green coffee started generating major buzz after one of America’s popular TV doctors, Mehmet Oz, MD, promoted the coffee bean extract on his show.
Unfortunately, regular brewed coffee doesn’t make the cut because the roasted beans found in your average cup of ‘morning joe’ don’t deliver the same potent dose of chlorogenic acids. That’s because most of the compounds are destroyed during the roasting process.
The New Buzz?
Now, a chemist and his colleagues at the University of Scranton have completed a second study on the green coffee extract—this time showing the supplement may help lower blood sugar levels.
The small trial included 56 men and women with normal blood sugar levels. The group participated in several glucose tests where their blood sugar levels were measured multiple times using different doses of green coffee extract.
The results show that the extract caused a significant reduction in blood sugar compared to levels during baseline testing, but that the highest dose — 400 milligrams — had the greatest effect overall.
The findings were presented this week at the annual meeting of the American Chemical Society in New Orleans.
In a statement online, the lead chemist for the study said, “A supplement that aids weight loss and improves blood sugar control simultaneously could be very valuable.”
Is all the fuss warranted?
Other experts say it’s still unclear whether the supplements will have the same blood sugar-lowering benefits for people with Type 2 Diabetes. In fact, James Lane, PhD, a psychophysiologist at Duke University who studies caffeine metabolism said in an online statement, “There’s no evidence that these results would apply to people who are diabetic.”
Another concern is that the study looked only at the immediate changes in blood sugar levels.
According to the U.S Centers for Disease Control and Prevention, nearly 26 million Americans have Type 2 Diabetes. And the American Diabetes Association has even weighed in on the coffee bean extract on its website. “Currently, there is not enough research to know its long-term effects, and we do not recommend the green coffee bean extract as a means for weight loss or for controlling blood glucose.”
As for evidence of the green coffee bean’s fat-burning benefits, scientific support is still very limited. Only a handful of small studies have shown that the supplement boosts weight loss.
So, for now, many experts say consumers are better off taking a wait-and-see approach to determine what science and research will show after more long-term testing.
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