Ampalaya or Amargozo is a vegetable grown throughout the Philippines. It is mostly cultivated, although wild forms can be found. We were always reminded during young days to eat our Ampalaya because it is rich in iron. It's really an ugly looking vegetable and considered an acquired taste because of its bitterness.

Ampalaya also grows wild in the remote areas of Mt. Banahaw. As the English name suggests (bitter melon), the melon has a bitter taste due to the presence of momordicin. There has been much research done on the effectiveness of using Momordica Charantia in the treatment of diabetes. It has been shown to increase production of beta cells by the pancreas, thereby improving the body’s ability to produce insulin. It has been recommended by the Department of Health of the Philippines, as one of the best herbal medicines for it's ability to help with liver problems, Diabetes and HIV. It is a common herb used in Chinese herbology. In the Philippines, the leaves are often used for children's coughs. It is also used in the treatment of skin diseases, sterility in women, as a parasiticide, as an antipyretic, and as a purgative.

• Momordica charantia is a tropical and subtropical vine of the family Cucurbitaceae, widely grown for edible fruit, which is among the most bitter of all vegetables. English names for the plant and its fruit include bitter melon or bitter gourd (translated from Chinese: 苦瓜; pinyin: kǔguā)

The herbaceous, tendril-bearing vine grows to 5 m. It bears simple, alternate leaves 4-12 cm across, with 3-7 deeply separated lobes. Each plant bears separate yellow male and female flowers.

The fruit has a distinct warty looking exterior and an oblong shape. It is hollow in cross-section, with a relatively thin layer of flesh surrounding a central seed cavity filled with large flat seeds and pith. Seeds and pith appear white in unripe fruits, ripening to red; they are not intensely bitter and can be removed before cooking. However, the pith will become sweet when the fruit is fully ripe, and the pith's color will turn red. The pith can be eaten uncooked in this state, but the flesh of the melon will be far too tough to be eaten anymore. Red and sweet bitter melon pith is a popular ingredient in some special southeast Asian style salad. The flesh is crunchy and watery in texture, similar to cucumber, chayote or green bell pepper. The skin is tender and edible. The fruit is most often eaten green. Although it can also be eaten when it has started to ripen and turn yellowish, it becomes more bitter as it ripens. The fully ripe fruit turns orange and mushy, is too bitter to eat, and splits into segments which curl back dramatically to expose seeds covered in bright red pulp.

Bitter melon comes in a variety of shapes and sizes. The typical Chinese phenotype is 20 to 30 cm long, oblong with bluntly tapering ends and pale green in color, with a gently undulating, warty surface. The bitter melon more typical of India has a narrower shape with pointed ends, and a surface covered with jagged, triangular "teeth" and ridges. Coloration is green or white. Between these two extremes are any number of intermediate forms. Some bear miniature fruit of only 6 - 10 cm in length, which may be served individually as stuffed vegetables. These miniature fruit are popular in Southeast Asia as well as India.

Common Names:
English: African cucumber, balsam apple, balsam pear, bitter gourd, bitter melon
Ifugao: Paliya, palia, palya
Spanish: Amargoso. amorgoso
Tagalog: Ampalaya, amplia

Folkloric uses: Astringent powdered leaves or root decoction can be applied to hemorrhoids.
Leaf juice for cough and as a purgative and anthelminthic to expel intestinal parasites, and for healing wounds.
Seeds also used to expel worms.
Juice from fruit used for dysentery and chronic colitis.
The vine or the juice of leaves used as mild purgative for children.
In large doses, the fresh juice is a drastic purgative.
Decoction of roots and seeds used for urethral discharges.
Pounded leaves used for scalds.
Infusion of leaves or leaf juice used for fevers.