Exciting new research suggests that an ingredient in raw coffee beans can lead to successful weight loss.
However this ingredient - known as chlorogenic acid - is destroyed when coffee beans are roasted, so that the weight loss benefit from drinking regular coffee is much less.
Weight gain and obesity are a global health crisis. Issues of cost and potential side effects of prescription weight loss drugs have led to the investigation of nutraceuticals such as green coffee extract, known to have health benefits by influencing glucose and fat metabolism.
Raw coffee beans are the most abundant natural source of chlorogenic acid - but it can also be found in peaches, prunes, strawberries, blueberries, potatoes and other plant products.
Previous research has shown that chlorogenic acid slows down the release of glucose into the blood stream, ultimately resulting in reduced fat absorption. Chlorogenic acid also reduces cholesterol levels and improves glucose tolerance.
A 22-week crossover study recently looked at the efficacy and safety of a commercial green coffee extract at reducing weight and body mass in 16 overweight adults, who received either high- or low-dose green coffee extract in separate six-week treatment periods.
Study authors observed significant reductions in body weight, body mass index (BMI) and percent body fat, suggesting that green coffee extract may be an effective and inexpensive way to reduce weight in overweight adults.
A natural pill or capsule that helps to control blood sugar and promotes weight loss at the same time would be a major advance in the treatment of type 2 diabetes. Already, one large study indicates a 50% risk reduction for people who drank seven cups of coffee a day compared to those who drank only two cups a day.
In other words - all the evidence points to chlorogenic acid as the active ingredient in green coffee beans that aids weight loss and may help to improve glucose control in normal subjects, as well as in people suffering from pre-diabetes and diabetes.
Green coffee bean extract is generally consumed as a supplement since drinking liquid coffee made from unroasted coffee beans would have a bitter and unpleasant taste. Also, you’d need to drink a lot of such a coffee to get a sufficient dosage of chlorogenic acid for weight loss and other health benefits.
Source: Benefits of Chlorogenic Acid: Weight Loss and Diabetes.