Dr. Oz Lying? Study Says Green Coffee Extract Bad For Healthy Weight Loss!

By on July 26, 2013
So what’s the key to healthy weight loss? While nutritionists argue that eating a wholesome diet and exercising more is your best strategy, Dr. Oz says it’s something entirely different.

“It’s important for everyone to understand what green coffee bean is, and why I think it’s so important for weight loss,” says Dr. Oz. “”Green coffee” refers to the raw or unroasted seeds (beans) of Coffea fruits. Green coffee beans are cleaned, dried, roasted, ground, and brewed to produce coffee.”

While most of Americans may be allured by the pretty promises of Dr. Oz, not everyone is–including researchers who recently published a study on green coffee in the Journal of Agricultural and Food Chemistry.

The study, which looked at a special compound in green coffee, called chlorogenic acid, or CGA, found that its anti-obesity effects were negligible at best.

“Supplementation of CGA in the high-fat diet did not reduce body weight compared to mice fed the high-fat diet alone,” says the study’s researchers. “This study suggests that CGA supplementation in a high-fat diet does not protect against features of the metabolic syndrome in diet-induced obese mice.”

So if it’s not effective, then why? And why does Dr. Oz claim that it is?

Green Coffee Extract Not So Effective After All?

Though Dr. Oz claims green coffee is effective for weight loss, researchers aren’t so convinced–and here’s why.

Researchers from the Western Australian Institute for Medical Research tested out the claims that CGA, the active component in green coffee, could have potential anti-obesity effects. To test out this theory, they had two sets of rodents go on two different diets: One group simply followed a high-fat diet, whereas the other group followed the same diet but with the addition of CGA supplementation.

What happened was this: The high-fat group got fat, but unfortunately, so did the group taking the CGA extract.

This doesn’t quite bode with previous claims that it could help people lose weight.

“Thanks to Dr. Oz, many consumers have the impression that green coffee bean has been evaluated, it’s safe, and it offers a meaningful benefit for weight loss,” says Scott Gavura, a contributor to Science Based Medicine. “In short, it’s a panacea. Unfortunately, there are no panaceas for weight loss, and there are no short cuts when it comes to science. Of course, these uncomfortable realities don’t lend themselves well to daytime television.”

Bottom line: Although a TV doctor may claim green coffee extract is a healthy (and easy) way to lose weight, studies don’t support it. You’re better off consuming beverages that have been shown to support weight loss, such as guarana or green tea–and green tea has other health benefits that green coffee extract doesn’t have, such as a reduced risk of heart disease.

As for why Dr. Oz claims it works, it could be chocked up to bad science, which he seems to favor.

Readers: Have you tried green coffee before as a way to lose weight? How did it work out for you?

Dr. Oz’s Green Coffee
Green Coffee Bean
Green Coffee Extract

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One Comment

  1. Barbara Hyland

    August 6, 2013 at 12:43 pm

    I have heart problems.Arrythmia. After taking green coffee bean extract, my chest hurt so badly I ended up in the hospital trying to find out the cause for my chestpain!

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