[show abstract][hide abstract] ABSTRACT: A safety study of TAHITIAN NONI Juice from Tahiti was conducted with ninety-six healthy volunteers. For 28 days, participants consumed one of four daily quantities of noni juice: 0 mL (placebo), 30 mL, 300 mL, or 750 mL. All daily dose formulations were standardized to 750 mL by making up any volume differences with the placebo. Hematology, biochemistry, urinalysis, vital signs, and adverse events measurements were made at 0 (baseline), 2, and 4 weeks, as well as during a two-week follow up (week 6). Electrocardiogram (ECG) measurements were also made for each volunteer during the pre-study screen and at week 6. During the trial, those in the noni groups experienced 20 to 50% fewer total adverse events than those in the placebo group. A marginally significant (P<0.1) reduction in the number of constant adverse events experienced by the volunteers was also found in the 300 mL noni juice group. A similar trend was observed in the other noni juice groups, as well. No other clinically significant differences between any of the groups were noted in the parameters and measurements of this study, nor was there evidence suggesting any adverse dose-related effects. The results of this study indicate that drinking up to 750 mL TAHITIAN NONI Juice per day is safe.
Pacific health dialog: a publication of the Pacific Basin Officers Training Program and the Fiji School of Medicine 11/2009; 15(2):21-32.
[show abstract][hide abstract] ABSTRACT: The aim of this study was to investigate the mechanisms involved in the immunomodulatory effects of Morinda citrifolia L. (noni) in vitro and in vivo in mice. In vitro, Tahitian Noni Juice (TNJ) and Noni fruit juice concentrates (NFJC) (1, 5mg/mL) potently activate cannabinoid 2 (CB2), but inhibit cannabinoid 1 (CB1) receptors in a concentration-dependant manner. In vivo, oral administration of TNJ ad libitum for 16 days decreased the production of IL-4, but increased the production of IFN-gamma. These results suggest that noni modulates the immune system via activating of the CB2 receptors, and suppressing of the IL-4, but increasing the production of IFN-gamma cytokines. It may also exert beneficial immunomodulation effects in conditions involving inadequate immune responses.
Journal of Ethnopharmacology 03/2008; 115(3):502-6. · 2.76 Impact Factor
[show abstract][hide abstract] ABSTRACT: Morinda citrifolia L. (noni) fruit has been used in tropical regions as both food and folk medicine. The recent use of noni as a dietary supplement has increased greatly. To describe the safety of this fruit, a literature review and data from new studies are presented. Several preclinical safety tests and a human clinical safety study have revealed no adverse health effects, even at high doses. The available data substantiate its continued use as a safe food.