Green coffee bean extract has become a popular weight loss supplement and if you're thinking about trying it you may be concerned about the potential side effects. The good news is that clinical research to date suggests that green coffee bean extract is safe for consumption for most people. While it does contain moderate amounts of caffeine, which can have some side effects, the amount of caffeine in a relatively high dose of green coffee extract is only about 10% of that in a strong cup of coffee.
If you're concerned about consuming caffeine, choose a decaffeinated green coffee bean extract supplement, which works just as well as caffeinated versions.
Make sure to purchase green coffee bean extract made in the U.S.A. because products from China and other countries are not regulated and may not be safe. Also choose products that say Svetol or GCA on the bottle. These extracts have been studied and products that contain other blends of green coffee bean extract may not be as effective. Research any products before you buy them, be aware of the side effects and possible interactions below, and be sure to check with your doctor before starting any new supplement.
Here are some of the potential side effects of green coffee bean extract, most of them due to the caffeine the non-decaffeinated brands contain:
While green coffee bean extract has been associated with decreased blood sugar levels, caffeine has been associated with an increase in such levels. Diabetics and people who want to keep their blood sugar low may want to choose a decaffeinated green coffee bean extract and should consult a doctor before adding any green coffee extract to their diet.
High Blood Pressure
Green coffee extract has been connected with lowering blood pressure. However, caffeine obtained from the extract can increase blood pressure, particularly in people already suffering from high blood pressure. If you're concerned about high blood pressure, consider choosing a decaffeinated version of the supplement.
Caffeine found in green coffee extract increases the amount of calcium the body flushes out during urination. This can negatively effect people with osteoporosis and those concerned about thinning and weakening bones. Again, choose a decaffeinated extract if this is a concern.
There is little research associated with the safety of taking green coffee bean extract during pregnancy. While it would appear safe for most pregnant and nursing women in small amounts, it is best to consult a doctor before consuming it to be safe.
While the risk appears very small, other conditions that may be caused or worsened by caffeine may include insomnia, nervousness, anxiety, upset stomach, nausea and vomiting, increased heart rate, increased breathing rate, and headache.
If you're ready to try green coffee bean extract, check out our list of the 3 Best Green Coffee Been Extract Supplements before you buy.