Pain
Research carried out at the Universite de Metz, in France in 1990, tested the analgesic (pain relieving) activity of an extract from the Morinda citrifolia plant on animals. The extract did supply significant pain reduction as demonstrated through a series of tests. The pain killing effect of the Noni extract was 75% as effective as morphine sulphate without the toxic side effects of that drug." 

Sleep
In the same study at the Universite de Metz, the administration of the extract from Morinda citrifolia demonstrated a sedative effect on the animals." 

Parasites
An alcoholic extract of Morinda citrifolia was tested along with extracts from other plants for its action against the human parasitic worm, Ascaris lumbricoides. Noni proved to be vigorous in its anti-parasitic action. 

Cancer
In 1994 Drs Hirazumi, Furusawa, Chou and Hokama published a research paper entitled Anticancer Activity of Morinda citrifolia (Noni) on Intraperitoneally Implanted Lewis Lung Carcinoma in Syngeneic Mice. In this study Noni fruits were collected and left in a lidded jar for 1-3 days after which the juice from the fruit was collected. This juice was administered to mice participating in the experiment. All the mice were implanted with Lewis Lung Carcinoma cells and half were fed Noni Juice in varying dosages while the others were not.
The former group had a significantly longer life span than the deprived group and the summary of the report includes the statement "This report demonstrates the antitumour activity of the Noni juice on ip implanted LLC in syngeneic C57BL/6 mice. LLC has been used as one of the standard syngeneic tumours for antitumour screening in the NCI since 1975."  This study revealed that Noni juice passed the standard test for the inhibition of tumour growth with flying colours. See also: Beta-carotene

ANIMALS
There are many accounts of success in reviving ailing animals by feeding them Noni juice. An increasing number of veterinary doctors are using Noni juice as an adjunct to their practice of animal medicine as they are seeing the positive results in their patients. Many animal and pet owners are using Noni juice to help their sick and injured animals. The area of veterinary application of Noni juice is yet to be researched but the anecdotal evidence of positive health results in animals is overwhelming in volume.