Noni juice is a tropical drink derived from the fruit of the Morinda citrifolia tree. This tree grows among lava flows in Southeast Asia and the Pacific Islands. Many brands of Noni juice are available in the market, as per the label on the bottle, you can add water to the concentrate of juice and drink it. Beware of added sugars or preservatives in the concentrate as it not provide with the optimum amount of nutrients. In some countries, it is also available in the form of teas, capsules, tablets and powder.