There are variety of vitamins involved in catabolism in liver. Absorption of vitamin will be effected when liver is damaged. Thus vitamin shall be restored when it is insufficient. And there are lots of vitamins in noni fruit, such as vitamin B1, vitamin B2, vitamin B6, vitamin B12, folic acid, vitamin C, vitamin E, vitamin K, etc.
However, absorption of micro element and mineral is essential as well, especially the absorption of zinc, for the liver functions with the aid of zinc. Statistically, hepatitis patients suffer commonly suffer from zinc insufficiency which lead to inappetence and abdominal distension. The zinc content in noni fruit is richer than other regular fruit such as apple, orange, grape, pineapple, watermelon, litchi and mango.