The collective excitement over green coffee bean extract as an effective weight loss supplement has surpassed fever pitch. In fact, you’ve probably heard claims and promises surrounding green coffee bean extract that range from the plausible, “speed-up weight loss” to the ridiculous, “miracle fat burner.”

So how well does green coffee bean extract actually work for weight loss? Here’s everything you need to know about this much vaunted fat burner.

What Is Green Coffee Bean Extract?

Put simply, green coffee consists of unroasted coffee beans. By harvesting beans before they’re roasted, this preserves the chlorogenic acid, which is where the major weight loss benefits associated with green coffee bean extract comes from.


We review this the magical weight loss ingredient

Chlorogenic acid plays a role in decreasing caloric intake by inhibiting an enzyme that promotes formation of glucose in the liver. Thanks to this enzyme-inhibiting ability, chlorogenic acid is suggested to be at least partially responsible for reducing glycemic disorders such as diabetes.

What’s more, green coffee bean extract promotes healthy blood sugar levels and improves glucose metabolism.

What The Research Says

A study published in the journal Diabetes, Metabolic Syndrome and Obesity examined the effects of green coffee bean extracts on 16 overweight adults with a BMI greater than 25 for 12 weeks.

The subjects supplemented with either 700 or 1050 mg of cholorgenic acid per day. Results of the study revealed the subjects lost an average of 18 pounds, including 4.4% of their overall body fat. [1]

Another study used mice to research green coffee bean extract’s effects on fat accumulation and body weight. At the end of the 14 day study, researchers concluded green coffee bean extract effectively reduced visceral fat content and body weight.[2]

Green Coffee Bean Extract Side Effects

green coffee bean extract side effects

With also no recorded side effects, green coffee bean extract looking good.

In the clinical research conducted with green coffee bean extract, no serious side effects were reported. However, if too much is ingested, WebMD cautions some side effects may occur such as diarrhea, high blood pressure, and anxiety.[3]

Since green coffee bean extract contains caffeine, be sure to check with a doctor if you’re concerned about any interactions with medications you might be taking.

Why Green Coffee Bean Extract Is Great

In the realm of weight loss supplements, few and far between have actual human research to support their effectiveness. Green coffee bean extract is going to help you not only manage blood sugar levels and fight disorders such as diabetes, but decrease body fat and improve weight loss efforts.

To maximize green coffee bean extract’s effectiveness, make sure you are creating a caloric deficit with healthy eating and following a regular exercise routine.


[1]Joe A Vinson, Bryan R Burnham, and Mysore V Nagendran, Randomized, double-blind, placebo-controlled, linear dose, crossover study to evaluate the efficacy and safety of a green coffee bean extract in overweight subjects Diabetes Metab Syndr Obes. 2012; 5:21-27. Diabetes Metab Syndr Obes

[2] Hiroshi Shimoda, Emi Seki, and Michio Aitani Inhibitory effect of green coffee bean extract on fat accumulation and body weight gain in mice BMC Complement Altern Med. 2006; 6:9

[3]Green Coffee WebMD Available At:

About The Author

Brian E. is from southern California and has worked for names like GNC and Vitamin Shoppe as a supplement expert and consultant. He currently lives in Utah and is studying marketing.

Leave a Reply

Your email address will not be published.