Green coffee extract and scientific studies and tests

Obesity is considered one of the biggest health risks in the modern world. It doubled worldwide since 1980 and there are now more than 1.5 billion people on the planet who are obese or overweight. Extensive national campaigns promoting healthy diets rich in fruits and vegetables, combined with increased exercise are failing. Scientists are increasingly turning to effective and inexpensive solutions derived from plants. While almost daily we learn about just another ancient plant that is offering miraculous weight loss power, green coffee is more researched than most and shows greatest promise.

Claim to fame

Green coffee extract became all the rage as a weight loss ‘miracle pill’ after TV personality Dr. Oz promoted it on his program as the latest answer to the prayers of overweight people. Such popularity increased the sales, but its exaggerated claims made many people skeptical. After all, there is a new ‘miracle weight loss pill’ on the market almost daily. But, contrary to many other supplements, green coffee extract has been extensively researched and there is a range of reliable scientific studies which confirm the ability of the main active ingredient of green coffee extract –  chlorogenic acid - to promote weight loss and improve a range of other health issues.

How it works

In a study  published in 2003 in the American Society for Clinical Nutrition, a group of scientists from the Centre for Nutrition and Food Safety, School of Biomedical and Molecular Sciences, University of Surrey, Guildford, United Kingdom, explored the glycemic effects of two main active compounds of coffee: chlorogenic acid and caffeine. They found that coffee acutely affects the secretion of gastrointestinal hormones and glucose tolerance.  Their study confirmed their hypothesis that chlorogenic acid has an antagonistic effect on transport of glucose and that it might affect the rates of intestinal glucose absorption.

 Randomized, placebo-controlled, double-blind study was conducted  by Joe Vinson and colleagues from the Chemistry Department, University of Scranton, to evaluate the safety and efficiency of a green coffee bean extract in 16 adults who were overweight. The results were published in Diabetes, Metabolic Syndrome and Obesity in 2012 and show a significant weight reduction up to 8 kg, more than 10% of the body weight and body mass drop between −2.92 ± 0.85 kg/m². There was also notable change in body fat percentage of up to 2.00 percents.

Norwegian scientists Thom had similar results  in his randomized, double-blind, placebo-controlled study of 40 obese volunteers, confirming that that the pathway for weight loss is in the reduction of the absorption of sugar in the gastrointestinal tract.

 

Not only weight loss

In 2008,  American Society for Nutrition published results of the study  conducted by a group of Brazilian scientists found that Chlorogenic Acids in the extract of Green Coffee are extremely Bioavailable in Humans - easily absorbed and metabolized. This paper underlined a number of benefits of chlorogenic acid in green coffee, such as lowering the risk of cardiovascular disease, Alzheimer's disease and diabetes type 2. Chlorogenic acid was also found to have antibacterial and antiinflammatory properties.