Several studies on rats have demonstrated significant weight loss, belly fat reduction, and lowered blood glucose levels (8, 9, 10).
However, research studies performed with rats aren’t always predictive of what results will be in humans.
We do have several studies carried out with humans. They also show weight loss from taking Garcinia Cambogia, but are more mixed results.
The chart below shows the results of a meta-analysis of 9 different studies that included a total of 706 participants.
All of these were Randomized Controlled Trials, with subjects given Garcinia Cambogia or Placebo (Study #1,Study #2,Study #3,Study #4,Study #5,Study #6,Study #7,Study #8,Study #9)
Some of these studies show impressive weight loss benefits, and others very little.
However, it should be noted that studies #6 and 7 used the highest dosages of 2.8 grams daily, and showed the greatest amount of weight loss compared to placebo.
Those that showed little or no weight loss all used a dosage of 900 to 1,000mg daily.
So while the average for all 9 studies encompassing 706 participants was 2 pounds more lost than those that received placebo, it appears better results were obtained at the higher dosage, as the authors of the meta-analysis suggest. (20)
Conclusion: The average for the 9 relevant clinical studies on humans showed weight loss of 2 pounds more than placebo. Studies that used higher doses of HCA recorded weight loss of 8-10 pounds more than placebo.