claims that the JAMA study “used whatever the dose was at the time, and they never mentioned the type of citrate they True Grade Garcinia other words, they may have been using the wrong HCA.Additionally, others have criticized this study for its heavy use of dietary fiber. Dietary fiber is thought to interfere with HCA, which could have inhibited weight loss in the HCA group.This has led many to conclude that Garcinia cambogia is a powerful weight loss and appetite suppression tool, but it works especially well if you’re using cambogia to complement an existing diet or exercise routine.Will cambogia help you lose weight without diet or exercise? Probably not.ut if you maintain a healthy diet and take the recommended dose of Garcinia cambogia per day, you may be able to lose more weight than someone who is eating the same diet and maintains the same exercise routine as you – at least according to current clinical studies. http://www.xinyanlaw.com/true-grade-garcinia-reviews/