Journal of Applied Pharmaceutical Science Vol. 2 (9), pp. 025-030, 2012.
The effects of noni (Morinda citrifolia L.) fruit juice on cholesterol levels: A mechanistic investigation and an open label pilot study. 
Palu AK, Brown A, Deng S, Kaluhiokalani N, West BJ.

Tahitian Noni Juice, noni fruit juice concentrate, and a noni juice extract inhibited HMG-CoA reductase and ACAT hepatic/intestine enzymes in vitro.  Noni juice showed a trend towards lowering total cholesterol and LDL levels, while increasing HDL levels, in nonsmokers in an open-label pilot study. (original abstract available at