A tropical fruit grown in Vietnam as well parts of China and Southeast Asia. The fruit has both medicinal and culinary uses. In Vietnam the fruit is combined with glutinous rice to make a nutritious dessert (as xoi gac). Gac is exceedingly high in lycopene (even more so than tomatoes) and contains the highest levels of beta carotene of any know fruit or vegetable.
From a medicinal perspective the gac fruit can be helpful in reducing atherosclerosis (hardening of the arteries), a remedy for dry eyes and has been tested for use in reducing the size of tumors.
The product is rarely seen in the U.S. There are online sources for buying seeds as well as for purchasing gac in powder form.