Pure green coffee bean extract is made from the raw beans, or seeds, that are contained within the red berries of the coffee plant. In normal production, these are roasted prior to going on sale, giving the traditional beverage. The extract, however, is prepared from beans that have not been roasted, in order to preserve certain essential compounds. There has been an explosion of interest in this preparation in recent years, due to its usefulness as a slimming aid and to its antioxidant properties.
Traditional coffee is sometimes used to help with weight loss, but the effect seems to be due to caffeine, a stimulant that temporarily raises energy and mental activity levels. Unfortunately, caffeine can produce unpleasant side effects, such as nervousness, irritability and headaches. It can also produce withdrawal symptoms when the intake is reduced or stopped. Green coffee extract contains far less caffeine and its effects seem to be due to an entirely different substance.
Raw coffee beans contain high levels of chlorogenic acid, a compound that is destroyed by the roasting process. This explains why the benefits of raw green beans cannot be obtained from the traditional drink. The compound is so-named because of the color it produces when it reacts with some other chemicals and has no connection with chlorine; "chloro" is from the ancient Greek word for "green".
It has long been known that chlorogenic acid is a powerful natural antioxidant - that is, a substance that inhibits oxidation reactions in the body. These reactions produce chemicals known as free radicals, which can damage cells. They are thought to play a role in the aging process and in the development of cancer. Antioxidants are therefore regarded as beneficial compounds that can slow down aging and reduce the risk of cancer.
Most of the recent flurry of interest in green coffee beans has been due to their ability to reduce body fat and help with weight loss. At least one clinical study found a significant effect. Two groups of volunteers, one taking the extract and one taking a placebo, were studied over a number of weeks. At the end of the study the group taking the extract were found to have experienced an average weight loss of 16%.
So how does it work? It seems that chlorogenic acid slows down the rate at which glucose is released from the food we eat. Glucose is a simple sugar that is produced by the breakdown of more complex carbohydrate molecules. It provides the body with energy, but when energy requirements are low it is converted to fat. In other words, carbohydrate intake needs to be balanced by exercise to use up the glucose before it turns to fat. Chlorogenic acid makes this easier by reducing the rate at which glucose is produced.
The benefits of chlorogenic acid may not end there. At least two other effects have been observed. Firstly, it seems to increase the activity of the liver, allowing fats to be metabolized more quickly. Secondly, it appears to help maintain blood sugar at a steady level.
Pure green coffee bean extract can be purchased from many sources in the form of capsules. Instead of roasting, the manufacturing process involves soaking the raw material. The procedure is designed to ensure that maximum levels of the active ingredient are retained.
Traditional coffee is sometimes used to help with weight loss, but the effect seems to be due to caffeine, a stimulant that temporarily raises energy and mental activity levels. Unfortunately, caffeine can produce unpleasant side effects, such as nervousness, irritability and headaches. It can also produce withdrawal symptoms when the intake is reduced or stopped. Green coffee extract contains far less caffeine and its effects seem to be due to an entirely different substance.
Raw coffee beans contain high levels of chlorogenic acid, a compound that is destroyed by the roasting process. This explains why the benefits of raw green beans cannot be obtained from the traditional drink. The compound is so-named because of the color it produces when it reacts with some other chemicals and has no connection with chlorine; "chloro" is from the ancient Greek word for "green".
It has long been known that chlorogenic acid is a powerful natural antioxidant - that is, a substance that inhibits oxidation reactions in the body. These reactions produce chemicals known as free radicals, which can damage cells. They are thought to play a role in the aging process and in the development of cancer. Antioxidants are therefore regarded as beneficial compounds that can slow down aging and reduce the risk of cancer.
Most of the recent flurry of interest in green coffee beans has been due to their ability to reduce body fat and help with weight loss. At least one clinical study found a significant effect. Two groups of volunteers, one taking the extract and one taking a placebo, were studied over a number of weeks. At the end of the study the group taking the extract were found to have experienced an average weight loss of 16%.
So how does it work? It seems that chlorogenic acid slows down the rate at which glucose is released from the food we eat. Glucose is a simple sugar that is produced by the breakdown of more complex carbohydrate molecules. It provides the body with energy, but when energy requirements are low it is converted to fat. In other words, carbohydrate intake needs to be balanced by exercise to use up the glucose before it turns to fat. Chlorogenic acid makes this easier by reducing the rate at which glucose is produced.
The benefits of chlorogenic acid may not end there. At least two other effects have been observed. Firstly, it seems to increase the activity of the liver, allowing fats to be metabolized more quickly. Secondly, it appears to help maintain blood sugar at a steady level.
Pure green coffee bean extract can be purchased from many sources in the form of capsules. Instead of roasting, the manufacturing process involves soaking the raw material. The procedure is designed to ensure that maximum levels of the active ingredient are retained.
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