First off, the acai berry should not be used as a weight loss supplement. Most of what you've heard about it is a scam. And all acai berry products are not equal. It's like those "green tea diets". While green tea is good for you, it won't make you lose the weight. The acai berry has a lot of antioxidents which can be great for your immune system and they now have juices and things that you can buy in the store. They are also full of vitamins and give you good energy. You really don't have to eat them as other fruits provide the same if not better nutrition but there's no reason why you shouldn't have them. But don't be fooled into thinking they are some weight loss miracle, there's no such thing.