Good point, Nelie!
I was curious about the product so I decided to check out the ingredients.
I see a few problems with this product. It's basically fiber and laxatives. Some of the ingredients could make you ill.
First, it's sold via a very generous affiliate program. Out of the $59.95 you pay for the product, the person promoting it gets $40. This would encourage a lot of false testimonials. The best thing would be to research the ingredients and published studies.
Other than the glucomannan (available elsewhere for pennies), the ingredients are misleading.
Two pills (one serving) contain:
1.16 grams of a proprietary blend of:
glucomannan
caralluma (whole plant) powder
Cha de Bugre leaf powder
260mg Enzyme blend.
Lets look at caralluma (whole plant) powder. The study on this ingredient, published in PubMed, was not done on the whole plant powder, but was done on caralluma extract and in higher dosages than what you get from this product. Also, the results were very minimal at best. ...
"these were not significantly different between experimental and placebo groups." In other words, you won't benefit from it.
Cha de Bugre is a diuretic so it will cause you to initially drop water weight. Not fat. It also contains caffeine, so that might explain the energy since it has stimulant properties. From what I can tell, there have not been any safety studies on this ingredient. Consume with caution.
Enzymes: Used here as
laxatives, so that would also explain any quick weight loss. Note that weight is not the same as fat in this instance
Lipase powder: an animal based enzyme that is used in the production of cheese. It is also used in laundry detergent for stain removal. The human body does use lipase (tho not for weight control), but it is manufactured naturally by the liver in the amount our bodies need. Amylase powder is used in brewing beer. Papain and bromelain powders are used as meat tenderizers. Some people feel they help with digestive problems, although this has no impact on weight.
Side effects from bromelain can include diarrhea, vomiting, heart palpitations, and a long list of other problems.
Lets get back to the glucomannon powder

It has the ability to make you feel fuller if taken before a meal, which has the possibility of helping you eat less. In my opinion, a better option than eating until you feel stuffed would be behavior modification and choosing the right foods. It's much healthier and sustainable than trying to trick the body into feeling fuller.
Still, if you feel you need something like this then just buy glucomannan powder. As nelie pointed out, it's super cheap! You can buy it at any drugstore, Walmart, or online and a month's supply will cost about $10 - probably a lot less.