This falls under the subject of predatory advertising.
I follow Mouse Print pretty closely, reading their weekly articles. They've covered such things as airline's hidden fees and ways food manufacturers disguise their downsizing. The article linked above is, in my opinion, the worst that it gets. A web page that purports to be an actual news article from a real news organization touting the benefits of some dietary supplement.
Many people could be fooled into thinking it's real, but the entire thing is a work of fiction created by a bottom-feeding supplement manufacturer. I have seen similar websites for similar products. All seem to espouse the benefits of the product and appear on the surface to be legitimate. That is, of course, until you look at the fine print buried at the bottom of the page.
Shame on them.
Oh, and by the way: There is no magic berry that can make you lose weight. Losing weight is simple math, You have to take in less calories than you use.