Does The Green Coffee Bean Extract Work?

Written by Dr. Steve Chaney on . Posted in current health articles, Healthy Living, Supplements and Health

Author: Dr. Stephen Chaney

 does green coffee bean extract work

Does the green coffee bean extract work? The claims sounded so appealing. You could just take this green coffee bean extract and the pounds would melt away. You didn’t need to exercise or change your diet.

Your first reaction when you heard those claims was probably “Right, when pigs fly. I’ve heard this kind of stuff before. It’s just too good to be true.”

But then you were given a pseudo-scientific explanation about how it was the chlorogenic acid in the green coffee bean extract that was responsible for its amazing properties (What they didn’t tell you was that chlorogenic acid is present in all roasted coffees). You were told that it was backed by a clinical study showing that people lost 17.7 pounds, 10.5% of their body weight and 16% of their body fat in 22 weeks without diet and exercise.

To top it all off you were told that it was endorsed by Dr. Oz on his TV show and provided with a video clip to prove it. After all of that you were probably tempted to say “Maybe…just maybe… these amazing claims might be true.” You may have even been tempted to try it.

Were the claims true? Is green coffee bean extract the miracle weight loss product that everyone has been looking for? Or was it just another bogus weight loss product?

 

Is Green Coffee Bean Extract Bogus?

Evidently the Federal Trade Commission did not consider the claims about green coffee bean extract to be true. The FTC sued one of the companies that manufactured and sold green coffee bean extract for promoting a “hopelessly flawed study” to support the weight loss claims for their product.

The FTC alleged that:

  • The study was too small, at 16 subjects, to provide convincing data.
  • The study contained a number of critical flaws in the design and results of the study. For example, the greatest weight loss actually occurred in the placebo group.
  • The lead investigator in India actually falsified the results.
  • The company knew or should have known that this botched study didn’t prove anything.”

The manufacturer eventually agreed to pay $3.5 million to the FTC to settle their complaint. Basically, the company agreed with the FTC that there was no evidence to back their weight loss claims.

 

How Did Dr. Oz Get It So Wrong?

What about Dr. Oz’s endorsement? In Dr. Oz’s 2012 show segment he called green coffee bean extract “the magic weight loss cure for any body type.” The most puzzling aspect of this whole saga is how Dr. Oz got it so wrong.

After all, he is a trained neurosurgeon. He is Vice Chair of the Department of Surgery at Columbia University. He understands the principles of evidence-based medicine. Evidence-based medicine simply means that it is a physician’s responsibility to check the scientific evidence before recommending a treatment to a patient. Yet he never even looked into the supposed “clinical study” backing green coffee bean extract’s weight loss claims.

In a Senate hearing this past June Dr. Oz apologized. He said: “For my colleagues at the FTC, I realize I have made their jobs more difficult.”

 

How Can You Protect Yourself Against Weight Loss Scams?

green coffee bean extractThere are dozens, if not hundreds, of new weight loss products appearing on the market every year. The FTC is doing its best to police the claims that are being made, but they are clearly overwhelmed. And even when they have an airtight case, it can take years for them to force a company to stop making false claims.

So, how can you protect yourself against weight loss scams? How can you avoid wasting your money on products that don’t work, or may even harm your health? I advise a little healthy skepticism.

  • Be skeptical about the claims. The old adage “If it sounds too good to be true, it probably is [too good to be true]” is always good advice.       In a previous “Health Tips From the Professor” I discussed the the FTC’s recommendation for “7 Easy Ways To Spot Fad Diets”. That one is probably worth printing out and keeping handy so that you can review it the next time a new diet program comes out.
  • Be skeptical about the studies. The bottom line is that not all clinical studies are reliable. I realize that it is extremely difficult for a non-scientist to evaluate the validity of clinical studies. My best advice is to go online and see what other experts are saying about the study and the claims. There are a number of “fact checker” blogs online that focus on careful scientific analysis of product claims and the “studies” that support them.
  • Be skeptical about the endorsements. Unfortunately, there are far too many examples of well known doctors who have endorsed bogus product claims on their TV shows or in their blogs. That makes it even more difficult for the layman to separate fact from fiction. My advice is to simply ask the question: “Does their blog or TV show feature something novel, something spectacular, and/or something sensational…every single week?”

My belief is that these experts all start out with good intentions. However, to develop a really big audience and keep them engaged they feel pressured to deliver novel and sensational health news every single week. The reality is that there are not advances every single week that are novel, sensational… and scientifically accurate. Eventually, they feel pressured to sacrifice accuracy for novelty.

That is why my blog is different. I don’t promise you spectacular and sensational news every week, but I do promise you accuracy. I will share the latest headlines, but I will tell you both their strengths and their weaknesses. Ultimately, it is your responsibility to protect yourself against weight loss scams and I tell you how below. Fortunately, what you can always count on from me is I will be honest with you.

So, does the green coffee been extract work?

 

The Bottom Line

    1. According to the FTC the green coffee bean extracts that were so widely promoted a couple of years ago were yet another example of bogus weight loss products. The FTC sued one of the companies that markets and sells green coffee bean extract for promoting a “hopelessly flawed” clinical study to advertise their product, and the company has recently settled with the FTC for $3.4 million.
    2. The only way that you can protect yourself from bogus weight loss products is to be skeptical. I discuss the questions you should ask in more detail above, but in short:
      • Be skeptical of claims that sound too good to be true.
      • Be skeptical of the clinical studies the companies quote to support their claims.
      • Be skeptical of expert endorsements. This product was even endorsed by Dr. Oz on his TV show.

 

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

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Comments (5)

  • Mike Lucas

    |

    Great info Dr. Chaney! Thanks!

    MJ & Jenn

    Reply

  • Caroline

    |

    When learning to do Research, I learned to look into studies, whether they were RCTs, the premise, the actual testing, and the P value. I have found Dr. Oz pushes a lot of non-back-upped stuff without any scientific background. Your articles help me to explain the real facts and validates my research and sharing information with them. Thank you.

    Reply

    • Margaaret W. Chaney

      |

      I am cautious but had such faith in Dr. Oz I fell for the offer, big time. So disappointed I don’t even watch him anymore. Sincerely, Margaret

      Reply

  • Amit Dabas

    |

    Lets not blame the Coffee here. A message should not go that all Coffee Bean Extracts are bad. People should be educated to identify between a good and a bad product.

    How to judge a good green coffee – look for the CGA content (chlorogenic acid content). The CGA should be minimum at 45% or more. For an extract and CGA = 50% …. a good dosage to make it potent will be 800mg – 1gm / day. 2 tabs – 1 Am and 1 Pm

    Second, Green Coffee works even better when paired with a good Green Tea. So, 500 mg coffee + 500 mg Green Tea will work even better. Please study – How to evaluate a good green tea 🙂

    Reply

    • Dr. Steve Chaney

      |

      I’m sorry, but if we are talking about weight loss, there is no good evidence that the chlorogenic acid content of green coffee bean extract makes any difference.

      Reply

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Latest Article

What Is The Best Diet For You?

Posted May 23, 2017 by Dr. Steve Chaney

Sorting Through The Dueling Diets

Author: Dr. Stephen Chaney

battle over best dietDiets are a lot like politics in today’s world. Everyone is absolutely convinced their diet is the best and absolutely convinced the other diets are terrible.

Remember the nursery rhyme: “Jack Sprat could eat no fat. His wife could eat no lean…”? Today’s diets remind me of that. They run the gamut from no fat to no carbohydrates. Surely, both extremes couldn’t be healthy. Or could they?

Some diets eliminate whole food groups. That couldn’t be a good thing. Or, could it?

So, what is the best diet for you?

In today’s article, I will give you the pros and cons of these dueling diets. Before I do that, however, let me give you some principles to put things into perspective.

General Principles For Evaluating Diets

How do you sort out the claims and counterclaims associated with the various diets? More importantly, how do you know which of the claims are true and which are misleading? Here are some general principles to help you separate the wheat from the chaff.  What’s the right diet for you?

We are omnivores. We can adapt to a wide variety of diets and do reasonably well. That means most people will do well on any of these diets short term.

wings proteinAnything is better than the standard American diet (SAD). It is high in sugar and refined carbohydrates. It is also high in saturated and trans fats. That is why proponents of every diet can claim that you will feel better and be healthier when you switch to their diet.

Processed and convenience foods are part of the problem. Most diets recommend “clean eating” (elimination of processed and convenience foods). Any diet that eliminates processed and convenience foods is likely to help you lose weight and get healthier. Caution: As soon as a diet becomes popular, food manufacturers rush in to provide pre-packaged, convenience foods to support that diet. Avoid the temptation to use those foods. Big Food Inc. does not have your best interests in mind. They are not your friends.

Most diets lead to a fairly rapid initial weight loss. This is because they restrict food choices and eliminate processed foods. When you eliminate familiar foods from someone’s diet, they instinctively eat less without even thinking about it. This rapid initial weight loss is part of the allure of almost every diet program. However, over time most people start adding back some of their favorite foods or find new foods they like, and the weight comes back.

Weight loss leads to improved blood parameters irrespective of diet composition. That is why every diet, no matter how bizarre, can claim it lowers your blood pressure, improves your blood sugar, lowers your cholesterol, and lowers your triglycerides.

Long term weight loss is virtually identical on every diet. Numerous clinical studies have compared long term weight loss on low fat diets, low carbohydrate diets, and virtually everything in between. Initial weight loss is more rapid on the low-carbohydrate diets. However, at the end of one or two years there is not a dime’s worth of difference in weight loss between any of the diets. The exception is the Vegan diet. Long term Vegans typically weigh less than their meat-eating counterparts, probably because the foods in the Vegan diet have low caloric density (fewer calories per serving).

Healthy carbs and healthy fats are more important than low carb or low fat diets. Ignore the claims and counter claims about low fat and low carb diets. Focus instead on diets that provide moderate amounts of whole grains instead of refined grains & sugar. Also focus on diets that provide moderate amounts of monounsaturated and polyunsaturated fats, especially the omega-3 polyunsaturated fats, instead of saturated and trans fats.

Focus on well balanced meals rather than individual foods. For example, moderate amounts of healthy carbohydrates will have relatively little effect on blood sugar and triglyceride levels as part of a plant-based meal that provides plenty of fiber and protein. However, those same carbohydrate-rich foods by themselves may cause a spike in both blood sugar and triglycerides.

best diet for youPlant-based diets rule. The Ornish diet (a very restrictive form of the Vegan diet) is the only diet that has been shown to reverse atherosclerosis in some people. The Vegan diet and the Mediterranean diet, which is largely plant-based, have been shown to be healthy long term. On the other hand, we simply don’t know whether low carbohydrate diets are healthy long term. Those clinical studies have not been done.

Saturated and trans fats are not your friends. They increase inflammation, which can have many serious long-term health consequences. In addition, the foods that are rich in saturated fats are often acid-forming foods, which can upset your acid-base balance.

We have 5 food groups for a reason. Each food group provides valuable nutrients (vitamins a & minerals) and phytonutrients. You may be able to replace the missing nutrients with supplementation, but you are unlikely to replace the phytonutrients with supplements – even those supplements that claim to be made from whole foods. You should be concerned about the long-term health consequences of any diet that eliminates whole food groups.

Low fat diets aren’t necessarily healthy. Whole food, low-fat diets like the Vegan diet are extremely healthy. However, as soon as health experts started recommending low-fat diets, Big Food Inc. stepped in to offer convenient low fat options. They simply replaced the fat with refined carbohydrates, sugar, and a witch’s brew of chemicals (Remember the part about Big Food Inc. not being your friend?). As a result, the low-fat diet consumed by most Americans is anything but healthy.

The supposed advantages of low carbohydrate diets are misleading. Low carbohydrate diets look very good when you compare them to the Big Food Inc version of the low-fat diet. However, when you compare them to something like the Vegan diet the advantages disappear.

Avoid sugar-sweetened and diet beverages. This should go without saying. Choose water instead. Add carbonation and/or a little lemon or lime juice for flavoring if necessary. Fortunately, most of the major diets exclude sugar-sweetened and diet beverages.

 

The Pros and Cons Of The Major Diets

It is not possible to cover each diet in depth in a single article, so this is meant to be a very brief overview of the major diets.

Low Fat Diets

The Dean Ornish Diet. This is a variation of the Vegan Diet that eliminates all oils, even vegetable oil.

Pros:

  • Whole food, plant-based diet.
  • All the advantages of the Vegan diet, plus it is the only diet shown to reverse atherosclerosis.

Cons:

  • Very restrictive.
  • Long-term adherence is low.

 

vegetablesThe Vegan Diet. This is a whole food, plant based diet. It uses plant proteins instead of meat and plant substitutes for dairy and eggs.

Pros:

  • Whole food, plant-based diet.
  • Associated with lower blood pressure, blood sugar, cholesterol, triglycerides, and inflammation.
  • Clinical studies show that the onset of major diseases like heart disease, cancer, and diabetes are delayed by at least 5-10 years. People on this diet live healthier, longer.

Cons:

  • Long-term adherence is relatively low, but some people stick with this diet for a lifetime.

 

Healthy Fat, Healthy Carb Diets

The Mediterranean Diet. This diet emphasizes fresh fruits & vegetables, whole grains, fish, nuts, seeds, legumes and olive oil. It includes cheese, poultry and eggs in moderation.

whole food dietPros:

Cons:

  • Not designed specifically for weight loss. You will need to watch portion sizes and track calories if you want to lose weight on this diet.

 

The DASH Diet. This diet was specifically designed to help reduce the risk of hypertension and stroke. It is similar to the Mediterranean diet except that it restricts sodium and includes a wider range of lean meats and low-fat dairy products. It does not specifically include olive oil.

Pros:

  • Whole food diet.
  • Clinically proven to lower blood pressure  as effectively as some blood pressure medications.
  • Relatively easy to follow. Includes foods familiar to Americans.

Cons:

  • Not designed specifically for weight loss. You will need to watch portion sizes and track calories if you want to lose weight on this diet.

 

Low Carb Diets

meat protein dietThe Paleo Diet. The Paleo diet is supposedly based on the diet of our paleolithic hunter-gatherer ancestors. The diet is high in protein & fat, and low in carbohydrates. The diet eliminates grains, sugars, refined oils, dairy, legumes, and starchy fruits & vegetables. Most of the protein comes from meats, but the animals must be grass-fed. This reduces, but does not eliminate, saturated fat and gives a modest increase in omega-3 polyunsaturated fat. Thus, the meats included in this diet are healthier than the meats in other low carbohydrate diets. However, it does not turn red meats into health foods.

Anthropologists tell us that the premise of the Paleo diet is faulty. The diet of our paleolithic ancestors was highly dependent on the foods available in their environment. Some were hunters and gatherers. Others lived in areas where fruits & vegetables were prevalent and game was scarcer. Still others lived in areas where starchy root vegetables were an important part of their diet. Furthermore, the enzymes required for digestion of starches are inducible. We can easily adapt to the introduction of grains into our diet.

Pros:

  • Whole food diet.
  • The Paleo diet is associated with several short-term benefits including weight loss, improved blood sugar control and reduced cholesterol, triglycerides & blood pressure.

Cons:

The Atkins Diet. The Atkins diet is the granddaddy of the low-fat diets. It is a very low carbohydrate diet that restricts sugars, grains, high carbohydrate fruits and vegetables. The allure of the diet is that it includes as much fatty meats and saturated fats as you want.

Pros:

  • The Atkins diet is associated with several short-term benefits including weight loss, improved blood sugar control and reduced cholesterol, triglycerides & blood pressure.

Cons:

  • There are no studies evaluating the long-term benefits and risks of the Atkins diet.
  • Weight loss at the end of one or two years is no better than for the low-fat diets.
  • The high intake of saturated fat has the potential to increase the risk of heart disease and cancer.
  • It is a very restrictive diet. Long-term adherence to this diet is poor.

The Ketogenic Diet. The Ketogenic diet is even more restrictive than the Atkins diet. I have covered the pros and cons of the Ketogenic diet in a recent post, so I will refer you to that article, Is the Ketogenic Diet Safe for details. In short, the Ketogenic diet has some short-term benefits and some potential long-term risks. Ketone supplements mimic some, but not all, of the short-term benefits of the Ketogenic diet. Their long-term health risks are unknown.

 

What Is The Best Diet For You?

what diet is right for youWe are all different, so there is no perfect diet for everyone. Want to know how to find a diet that works for you?  Here are some things to think about.

  • If you are like most Americans, almost any of these diets is better than your current diet.
  • The good thing about all the diets reviewed in this article is:
    • They replace refined carbohydrates & sugars with healthier alternatives (The best of the diets also replace saturated & trans fats with healthier alternatives).
    • They emphasize whole foods rather than processed and convenience foods.
    • They eliminate sugar-sweetened and diet beverages.
    • They emphasize fresh vegetables and most include fresh fruit.
  • If you are looking for rapid initial weight loss:
    • The very restrictive diets at either extreme (very low fat or very low carb) are best because they eliminate familiar foods from the diet.
    • The very low carb diets are slightly more effective than low fat diets initially because of water loss, but weight loss on most low carb and low fat diets is identical after 1-2 years.
    • Because both the Mediterranean and DASH diets involve many familiar foods, you will need to pay more attention to portion sizes and total calories on these diets if your primary goal is to lose weight.
  • If you are looking for long term weight control, the Vegan diet is best, probably because most foods in the Vegan diet have low caloric density. Multiple studies have shown that Vegans weigh less than their meat-eating counterparts.
  • If you are looking for long term health benefits:
    • The Vegan and Mediterranean diets are clearly your best choices. They are backed by multiple clinical studies showing they reduce the risk of heart disease, cancer, diabetes, dementia and other diseases.
    • The DASH diet is probably equally healthy. However, because it was designed to control blood pressure, most clinical studies have focused only on how well it reduces blood pressure.
    • There is no evidence that the low carb diets have any long-term health benefits, and there is reason to suspect they may have some long-term health risks.
  • I have serious concerns about long-term health risks for any diet that:
    • Eliminates whole food groups.
    • Is high in saturated and trans fats.
  • The effectiveness of any diet is dependent on how well you stick with it:
    • The long-term adherence to any of the very restrictive diets (either low carb or low fat) is low, although some people do stick with the Vegan diet for a lifetime.
    • Adherence is best with the Mediterranean and DASH diets, probably because many of the foods are familiar and readily available.

 

The Bottom Line

 

In this article I have reviewed the major low fat diets (the Dean Ornish diet and the Vegan diet), the major healthy carb, healthy fat diets (the Mediterranean diet and the DASH diet), and the major low carb diets (the Paleo diet, the Atkins diet, and the Ketogenic diet). In summary:

 

  • If you are like most Americans, almost any of these diets is better than your current diet.
  • The good thing about all these diets is:
    • They replace refined carbohydrates & sugars with healthier alternatives (The best of the diets also replace saturated & trans fats with healthier alternatives).
    • They emphasize whole foods rather than processed and convenience foods.
    • They eliminate sugar-sweetened and diet beverages.
    • They emphasize fresh vegetables and most include fresh fruit.
  • If you are looking for rapid initial weight loss:
    • The very restrictive diets at either extreme (very low fat or very low carb) are best because they eliminate familiar foods from the diet.
    • The very low carb diets are slightly more effective than low fat diets initially because of water loss, but weight loss on most low carb and low fat diets is identical after 1-2 years.
    • Because both the Mediterranean and DASH diets involve many familiar foods, you will need to pay more attention to portion sizes and total calories on these diets if your primary goal is to lose weight.
  • If you are looking for long term weight control, the Vegan diet is best, probably because most foods in the Vegan diet have low caloric density. Multiple studies have shown that Vegans weigh less than their meat-eating counterparts.
  • If you are looking for long term health benefits:
    • The Vegan and Mediterranean diets are clearly your best choices. They are backed by multiple clinical studies showing they reduce the risk of heart disease, cancer, diabetes, dementia and other diseases.
    • The DASH diet is probably equally healthy. However, because it was designed to control blood pressure, most clinical studies have focused only on how well it reduces blood pressure.
    • There is no evidence that the low carb diets have any long-term health benefits, and there is reason to suspect they may have some long-term health risks.
  • I have serious concerns about long-term health risks for any diet that:
    • Eliminates whole food groups.
    • Is high in saturated and trans fats.
  • The effectiveness of any diet is dependent on how well you stick with it:
    • The long-term adherence to any of the very restrictive diets (either low carb or low fat) is low, although some people do stick with the Vegan diet for a lifetime.
    • Adherence is best with the Mediterranean and DASH diets, probably because many of the foods are familiar and readily available.
  • For more details, read the article above.

 

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

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