Garcinia cambogia is a small, sour, purple fruit indigenous to India and Southeast Asia. Its rind has traditionally been used as being a food preservative, flavoring agent and as remedy for stomach bloating and gas. In India, additionally it is used as a solution for rheumatism and bowel problems. The active ingredient is hydroxycitric acid (HCA). Although some data from animal studies claim that HCA may suppress appetite and also the formation of fats and cholesterol in the liver, I’ve seen no proof of its effectiveness for weight loss. A 2011 British review of 9 studies determined that supplementation with dr oz supplements for weight loss can lead to short-term weight-loss, but a newer human trial from Korea that compared the results of GCE and another supplement, EGML, an extract of the leaves of Glycine max (soybean), found that neither resulted in weight loss.
They recruited 86 overweight adults between the ages of 20 to 60 and checked their weight, levels of cholesterol and diet. Then they divided the participants into three groups and randomly assigned these to take tablets containing two grams of either GCE or EGML, or a placebo containing two grams of starch. The study subjects continued with their regular diets and took the supplements for 10 weeks.
Results showed that neither supplement had any effect on the participants’ weight or resulted in modifications in body mass index or waist-to-hip ratio, important risk factors for heart problems in overweight individuals. The researchers reported that inside the EGML group, HDL (“good”) cholesterol increased when compared with those using the placebo. Besides that, no significant alterations in cholesterol or triglyceride levels were observed with either supplement.
The researchers noted that natural food supplements like EGML have been thought to increase satiety, and, as a result might help reduce calorie intake. But in this research, they saw no effects on either satiety or calorie intake. In reality, they reported increased calorie and cholesterol consumption in all three groups and suggested that this explanation might be that if participants were recruited they likely under-reported how much they customarily ate.
You might see claims that Garcinia cambogia can promote weight loss by increasing metabolism (the speed in which your system burns calories) and suppressing appetite, but the Korean investigators saw no evidence iejwom such effects. And I can tell you that this safest and best approach to enhance your metabolism is not really through a supplement or drug, though with regular physical exercise.