The researchers carried out a four week trial of a new green coffee, a blend of un-roasted coffee and roasted Arabica beans, and found that those who drank one cup a day lost 3.5 pounds in two weeks, and 4.45 pounds in a month, without following any other dietary plan.
“Green coffee is similar to green tea. In its raw, un-roasted form, it is rich in plant molecules that speed metabolism and aid weight loss,” claims Laurent Fresnel of ATP Life, makers of the coffee called ‘Coffee Shape’.
“These molecules of ‘chlorogenic acid’ are strong antioxidants that appear to have other health benefits too. Unfortunately, they are destroyed in the roasting process, so are not found in high levels in regular coffee,” he continues.
Chlorogenic acid and its relevance in green coffee’s weight-loss properties
Hiroshi Shimoda, a scientist at the Oryza Oil & Fat Chemical Company Limited in Aichi, Japan adds, “Chlorogenic acid is stable and normal at room temperature, but it is unstable at high temperatures.”
“Normally, coffee beans are roasted at a temperature of around 240 to 250° Celsius (464-482 degrees Fahrenheit). Roasting leads to decomposition of chlorogenic acid and forms brown aromatic Maillard reactants,” he added.
This process gives the roasted coffee its taste and aroma, and as green coffee is in un-roasted form it does not smell good and is bitter in taste.
Past studies have proved that drinking green tea can help in losing weight, and now similar properties have been found in green coffee as well.
It may be noted that both the beverages contain similar properties that aid weight loss. Thus it depends on an individual whether to drink green tea or green coffee.
A word of caution
According to the scientists, green coffee is not suitable for everybody. Anyone under 16 years of age, pregnant women and nursing mothers and individuals suffering from high blood pressures, diabetes or any cardiac illness should refrain from drinking green coffee.
Excessive drinking for a swift weight loss is also advised against. Also, drinking more than one cup of green coffee can have side effects and in case of any serious problem after drinking green coffee, doctor should be consulted immediately.
The research and its findings have been published in the ‘American Journal of Clinical Nutrition’.