I am a huge fan of acai and my favorite, though way too expensive, form of it is in Xocai chocolates where it's combined with a good version of cocoa which has really more antioxidants in it than in the acai, so you get a good double dose of what your body needs, plus the Xocai is delicious. I ate those for a little less than a year and had been getting bronchitis two or three times a year up to that point, but haven't had it since eating the Xocai and even though I've not been able to afford the Xocai for the past 1+ years, I still have been healthier than anytime in my life and I attribute this to having had those several months of the acai and cocoa. I am convinced it built up my immune system and even this late, I am still reaping the benefits of having done that. I haven't tried the supplemental capsules of the acai, and frankly did not realize those were available. I recently bought some juice at the grocery that has acai, but haven't tried it yet. I cannot say enough good things about acai. In my opinion, it's a miracle worker! MonaVie is also a good source, but I just preferred the Xocai because it was healthy chocolate and I love chocolate. By the way, I lost a good ten pounds just eating the Xocai and I found after about a month of eating the Xocai, I no longer craved sugar, so this led to losing a little more weight, as well. I don't know if the other acai products do that or not. Also on the Xocai, I no longer had fibromyalgia pain and was able to give up eating Motrin and Advil daily. Just from telling you this, I've decided I'm going to get back on that good stuff!