Acai Berry
Its effectiveness as natural weight loss support seems hard to grasp. There is so much noise but hardly any reliable or simply, well-written, reviews on them. Except medical resources like WedMD and MayoClinic, which are legitimate but maybe too conservative in their review of weight loss related products, since so few proper studies have been done and it is nearly impossible to statistically significantly correlate a weight loss with any one type of food.
On one hand, it seems suspicious that the health concerns acai berry reviews claim they address are the same ones most talked about in America: detoxification, cancer, weight loss, high cholesterol, and erectile dysfunction. Seems a bit too convenient. On the other, the properties of acai berry sound pretty reasonable: good source of antioxidants, fiber and heart-healthy fats; they sound like fairly normal berries. How in the world the causes and effects link up, as in how antioxidants, fiber, and good fats improve erectile dysfunction, completely eludes me.

Guess the only way to know is to try.