Pros and cons
Physical activity will help lose weight by burning calories and building muscle. There are no foods that are strictly off-limits, and the point system is straightforward and easy to understand. Some diets are more radical than others, but all have the same goal: Learn more about the options. One drawback of Weight Watchers is that the points system can allow for some abuse.
This could theoretically lead to reduced appetite and cravings (2). There are actually a whole bunch of studies in rats showing that Garcinia Cambogia consistently leads to significant weight loss (3, 4, 5, 6).
However, what works in rats doesnt always work in humans. Bottom Line: Studies in rats show that the active ingredient in Garcinia Cambogia can inhibit a fat producing enzyme called Citrate Lyase and increase serotonin levels, leading to significant weight loss.