01 Aug THE EFFECTS OF GREEN COFFEE
“Green coffee” beans are coffee seeds (beans) of Coffea fruits that have not yet been roasted. Green coffee beans are the same as regular coffee beans, except that they have not been roasted yet (according to WebMD). Coffee beans are naturally green, but they are usually roasted before being sold to the consumer. This is the process that turns them brown.The roasting process of coffee beans reduces the amounts of the chemical chlorogenic acid. Therefore, green coffee beans have a higher level of chlorogenic acid compared to regular, roasted coffee beans. Coffee beans are loaded with antioxidants and pharmacologically active compounds. Two of the most important ones are Caffeine and Chlorogenic Acid. Chlorogenic acid in green coffee is thought to have health benefits. People take green coffee by mouth for obesity, diabetes, high blood pressure, Alzheimer’s disease, and bacterial infections.
If this is true, then taking green coffee bean extract would be like eating a slightly lower carbohydrate diet.
However, it’s important to keep in mind that some of these studies were sponsored by companies that profit from sales of green coffee beans.
This doesn’t necessarily mean that the results are invalid, but it is known that the funding source of a study can have a significant effect on the outcome. For this reason, it is a good idea to be extra skeptical of industry funded research.
For obesity other studies have shown that chlorogenic acid can reduce body weight, reduce fat absorbed from the diet, reduce fat stored in the liver and improve the function of the fat burning hormone adiponectin.
Chlorogenic acid has also been shown to drastically improve cholesterol and triglyceride levels. These are important risk factors for heart disease.
Green coffee has been shown to inhibit weight gain. This may be due to decreased absorption of carbohydrates from the diet, or via some other mechanism.
As hypothesized in the animal studies, supplementing chlorogenic acid appears to reduce glucose absorption. This effect on glucose metabolism could play a protective role in diabetes management, and may also explain the effects on body weight.
The appropriate dose of green coffee depends on several factors such as the user’s age, health, and several other conditions. At this time there is not enough scientific information to determine an appropriate range of doses for green coffee (in children/in adults). Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult your pharmacist or physician or other healthcare professional before using.
Green coffee is POSSIBLY SAFE when taken by mouth appropriately. Green coffee extracts taken in doses up to 480 mg daily have been used safely for up to 12 weeks. Also, a specific green coffee extract (Svetol, Naturex, South Hackensack, NJ) has been used safely in doses up to 200 mg five times daily for up to 12 weeks.
It is important to understand that green coffee contains caffeine, similar to regular coffee. Therefore, green coffee can cause caffeine-related side effects similar to coffee.
SPECIAL PRECAUTIONS & WARNINGS :
PREGNANCY AND BREAST-FEEDING : There is not enough reliable information about the safety of taking green coffee if you are pregnant or breast feeding. Stay on the safe side and avoid use..
ABNORMALLY HIGH LEVELS OF HOMOCYSTEINE : Consuming a high dose of chlorogenic acid for a short duration has caused increased plasma homocysteine levels, which may be associated with conditions such as heart disease.
ANXIETY DISORDERS: The caffeine in green coffee might make anxiety worse.
BLEEDING DISORDERS : There is some concern that the caffeine in green coffee might make bleeding disorders worse.
DIABETES: Some research suggests that caffeine contained in green coffee might change the way people with diabetes process sugar. Caffeine has been reported to cause increases as well as decreases in blood sugar. Use caffeine with caution if you have diabetes and monitor your blood sugar carefully.
DIARRHEA : Green coffee contains caffeine. The caffeine in coffee, especially when taken in large amounts, can worsen diarrhea.
GLAUCOMA: Taking caffeine which is contained in green coffee can increases pressure inside the eye. The increase starts within 30 minutes and lasts for at least 90 minutes.
HIGH BLOOD PRESSURE : Taking caffeine found in green coffee might increase blood pressure in people with high blood pressure. However, this effect might be less in people who consume caffeine from coffee or other sources regularly.
HIGH CHOLESTEROL : Certain components of unfiltered coffee have been shown to increase cholesterol levels. These components can be found in green coffee as well. However, it is unclear if green coffee can also cause increased cholesterol levels.
IRRITABLE BOWEL SYNDROME (IBS): Green coffee contains caffeine. The caffeine in coffee, especially when taken in large amounts, can worsen diarrhea and might worsen symptoms of IBS.
THINNING BONES (OSTEOPOROSIS ): Caffeine from green coffee and other sources can increase the amount of calcium that is flushed out in the urine. This might weaken bones. If you have osteoporosis, limit caffeine consumption to less than 300 mg per day (approximately 2-3 cups of regular coffee). Taking calcium supplements may help to make up for calcium that is lost. Postmenopausal women who have an inherited condition that keeps them from processing vitamin D normally, should be especially cautious when using caffeine.