Green Coffee Bean Review 2019 – Benefits & Side Effects

What is Green Coffee Bean

Dr. Oz advertised the green coffee bean extract as safe, natural, and with some amazing benefits for those who combine it with a proper diet and daily exercises. Green Coffee Bean Extract 800 from NatureWise is one of the most popular weight loss supplements of this type. Is it really that amazing as people claim to be?

NatureWise is not a company with a vast history behind, like other companies we reviewed on our website, but they seem to have a very clear focus on what they want to offer to their customers: “superior products and the kind of support that inspires people to realize their health potential.”

According to NatureWise official website, they are one of the “fastest-growing companies.” Founded in 2003 by David Paul, the company is now producing 10 different supplements: Garcinia Cambogia Extract, Colon Cleanse, Green Coffee Bean Extract 800 (the one we will review below), UltraPure GCA Green Coffee Bean Extract, Raspberry Ketones, CLA 1250, Krill Oil Omega-3 EPA/DHA, Organic Flaxseed Oil, Ubiquinol, and Vitamin D3.

NatureWise official website is very well built, with clear and easy to find information. They offer customer support and multiple ways to contact the company. For those interested, there is a “sign up” option, which will allow you to receive monthly discount coupons.

Green Coffee Bean Ingredients

NatureWise Green Coffee Bean contains the following active ingredients: Proprietary Green Coffee Bean Extract 800 Blend (Green Coffee Bean Extract and GCA Green Coffee Bean Extract) 800 mg.

Inactive ingredients: Vegetable cellulose (capsule) and 2% or less organic rice bran extract.

NatureWise Green Coffee Bean does not contain yeast, wheat, gluten, dairy, corn, soy, eggs, sugar, tree nuts, peanuts, fish, shellfish, or hydrogenated oils.

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Benefits of Green Coffee Bean

As you can see in our manufacturer presentation section, NatureWise offers two green coffee bean extract diet pills: the Green Coffee Bean Extract 800 Blend with GCA, and UltraPure GCA Green Coffee Bean Extract. Our review will focus more on the first one, as both have practically similar ingredients and benefits. The only difference between the two formulas is the GCA content.

One of the first questions people will ask when they see a “Green Coffee Bean” weight loss supplement is, probably, “why not just drink coffee?.” Roasted coffee and green coffee offer very different health benefits. When coffee is roasted, its antioxidant levels increase but the levels of chlorogenic acid (a natural substance that can be found in green coffee) decrease. The Chlorogenic acid is believed to have amazing weight loss properties, is one of the few natural substances that can curb carbohydrates absorption, boost weight loss, and help regulate post-meals blood level sugars, all at the same time.

According to NatureWise, 800 with GCA is 100% natural with no artificial or chemical ingredients added to the formulation. Their Green Coffee Bean Extract has the minimum amount of caffeine (20 mg per serving), which means that the weight loss activity is not because of the caffeine, but because of the natural chlorogenic acid.

Just like with Garcinia Cambogia extracts, Green Coffee Bean wasn’t very popular until it was promoted by the TV celebrity host Dr. Oz. He claimed that this type of weight loss supplement is safe, natural, and it can offer some amazing benefits to those who combine the treatment with proper diet and daily exercises. However, as we cannot take the word of a TV celebrity regarding how effective or safe a supplement is, we did our research. It appears that some clinical studies and trials on green coffee have been conducted in the past years. The finding, while still preliminary and with no incentives on the long-term effects, are more than encouraging.

Green Coffee Bean

For instance, in a study presented at the American Chemical Society in March 2012, 16 overweight adults received a 1,050 mg dose of green coffee bean extract for six weeks, then a two-week break, then a dose of 700 mg for two weeks, then another pause, and then a placebo. For some participants, the order was different. The final results bowled the researchers over. Without modifying their calorie intake, over the full 22 weeks, participants lost an average of 17.5 pounds (averaging 10.5% of their total body weight). And there is a lot more information online regarding different studies and clinical tests, all with similarly impressive results.

Green Coffee Bean Extract from NatureWise is not the only green coffee bean based diet pills available on the market. But our goal here is to find and review only the best and most promising supplements out there. This weight loss supplement is, without any doubts, a best seller for the company and for online retailers such as Amazon where the formula has received over 2,500 five stars reviews from real customers.

How Much Does Green Coffee Bean Cost?

Each bottle of Green Coffee Bean Extract 800 with GCA contains 60 vegetable capsules, which is enough for one month of treatment at a recommended dose of 1 capsule twice daily 30 minutes before meals. One bottle of product costs $34.95, but discounts may apply from one retailer to another. A 2-pack deal (120 vegetable capsules) is also available.

Please note that this weight loss supplement cannot be purchased directly from the NatureWise official website.

Potential Green Coffee Bean Side Effects

According to NatureWise, Green Coffee Bean Extract has no associated side effects. Each vegetarian capsule contains the equivalent of one cup of decaffeinated coffee, which makes the product safe for those with high blood pressure conditions. The company also states that their product is gluten-free and suited for vegan use.

Our research team went through hundreds of online testimonials and it discovered that some consumers have reported some sleep problems after taking the supplement. We also discovered that some consumers, especially those with diabetes, have reported bloating while using the product. Please note that these are very rare cases and most people can safely use Green Coffee Bean Extract.


  • One of the best weight loss supplements available
  • Affordable price
  • Heavily endorsed by Dr. Oz
  • Simple, yet very potent formula
  • NatureWise is a reputable manufacturer


  • Green Coffee Bean has been associated with several mild side effects
  • The formula or the manufacturing process is not unique

Final Verdict

After taking a closer look at the available research as well as the risks, it seems like the pros outweigh the cons, at least for now. Green Coffee Bean Extract 800 with GCA is a relatively cheap weight loss supplement, at least compared to other similar weight loss pills. There is plenty of good research around this ingredient, not to mention that it is recommended by well-known TV celebrities and authority websites.

Does it work? This diet pill only has GCA as its main ingredient, and it should be safe to use as long as the maximum recommended dose is not exceeded. On top of that, the chlorogenic acid (which can be found in the green coffee beans) has been proven to work in weight loss.

We believe that Green Coffee Bean Extract 800 with GCA produced by NatureWise is a strong contender in the weight loss supplements market. There are thousands of positive testimonials out there, reviews from people that have tried and succeeded with this particular supplement.

About Philip Gibson

Ann Olson is a freelance health writer and blogger specializing in diet reviews, sexuality education, disease awareness and healthy eating. She currently writes various health and diet articles for several websites, including eHow, and She also has a history of educating readers about mental and sexual health issues on Associated Content and Yahoo! Voices, where she was a featured health and wellness contributor.