Dika oil, from Irvingia gabonensis seeds, native to West Africa. Used to make margarine, soap and pharmaceuticals, where is it being examined as a tablet lubricant. Largely underdeveloped. 
[size=75]From Wikipedia, the free encyclopedia [/size]
Irvingia is a genus of African and Southeast Asian trees in the family Irvingiaceae, sometimes known by the common names wild mango, African mango, or bush mango. They bear edible mango-like fruits, and are especially valued for their fat- and protein-rich nuts, known as ogbono, etima, odika, or dika nuts.
The subtly aromatic nuts are typically dried in the sun for preservation, and are sold whole or in powder form. They may be ground to a paste known variously as dika bread or Gabon chocolate. Their high content of mucilage enables them to be used as thickening agents for dishes such as ogbono soup. The nuts may also be pressed for vegetable oil.
The fruit is a large drupe, with fibrous flesh.
The trees yield a hard wood, useful in construction.
Categories: Malpighiales | Edible nuts and seeds | Edible thickening agents | African cuisine | Nigerian cuisine | Malpighiales stubs | Food ingredient stubs