Positive study on 27 rabbits.http://www.ncbi.nlm.nih.gov/pubmed/21569436
Uncontrolled pilot study of 10 Adults showing preliminary benefits.http://www.ncbi.nlm.nih.gov/pubmed/21486000
Study of cultured mouse cells showing inhibition of mast cell activation (not a good thing?)http://www.ncbi.nlm.nih.gov/pubmed/21470042
14 Patient pilot study (uncontrolled) showing statistically significant pain reduction. MonaVie juice was used.http://qjmed.oxfordjournals.org/content/102/5/341
Antioxidants do not help with Acute Mountain Sickness.http://jama.ama-assn.org/content/297/8/842
High quality studies correlate antioxidants with higher rates of mortality - Meta-analysis.http://www.sciencedirect.com/science/article/pii/S0531556510001282
Hypothetically, antioxidants may decrease lifespan.http://www.ncbi.nlm.nih.gov/pubmed/21411096
Atheroprotective effects of acia juice in mice study.http://www.ncbi.nlm.nih.gov/pubmed/21386979
Acai hypothesized to have immune response in humans based on cell cultureshttp://www.ncbi.nlm.nih.gov/pubmed/21147193
Acai extract in cigarettes reduced harmful effects in mice.http://www.ncbi.nlm.nih.gov/pubmed/20838232
Acai helped to prevent metabolic syndrome in mice.http://www.ncbi.nlm.nih.gov/pubmed/20452390
MonaVie Acai Juice is non-toxic.http://www.ncbi.nlm.nih.gov/pubmed/20232121
Acai no more effective at preventing tumor growth in mice than other berries. No control.
Studies on cultured cells, mice, rabbits and even insects just doesn't cut it. The two positive studies I found that were done on humans were just pilots, so interesting but way too insubstancial to support any claims of efficacy.