Plant Foods Hum Nutr. 2008 Jun;63(2):59-63.
Liver protective effects of Morinda citrifolia (Noni).
Wang MY, Nowicki D, Anderson G, Jensen J, West B.

Noni fruit juice was fed to rats to evaluate its protective effects against carbon tetrachloride (CCl4)-induce acute liver injury. Rats that were pretreated with a placebo for 12 days experienced progressive liver lesions over a 24-hour period after being exposed to a single dose of CCl4.  However, those pretreated with noni juice did not experience significant liver damage. These results suggest that noni juice is effective in protecting the liver.  (view original abstract at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2413119/).