Karela, also known as bitter gourd or balsam pear, is a tendril-bearing tropical vine in the Cucurbitaceae family cultivated for its bumpy, oblong green fruit that is consumed as a vegetable while still immature. It is renowned for its intensely bitter flavor and is a staple in Indian, Chinese, Filipino, Vietnamese, and Caribbean cooking.
History & Origins
Karela has been cultivated in India and China for at least several centuries, with Sanskrit and traditional Chinese medical texts referencing its medicinal use since before the Common Era. It spread westward through the spice and trade routes and was carried to the Caribbean and the Americas by indentured laborers and migrants in the 19th century, where it became a fixture in Trinidadian, Surinamese, and West Indian cookery. Today it is widely grown across South, East, and Southeast Asia and is valued equally as a culinary ingredient and a folk-medicinal plant.
Nutrition Facts
Per 100 g, edible portion (estimated)
- 17 kcalCalories
- 1.0 gProtein
- 0.2 gFat
- 3.7 gCarbs
- 2.8 gFiber
- 1.0 gSugars
- 296 mgPotassium
- 84 mgVitamin C
- 24 mcgVitamin A
Culinary Uses
- Stuffed and pan-fried as bharwa karela in North Indian cuisine
- Shallow-fried as karela sabzi with onion, turmeric, and spices
- Sliced and stir-fried with egg, garlic, and fermented black beans in Chinese and Filipino cooking
- Blanched and added to soups, dals, and refreshing bitter juices across the tropics
Known Benefits
- Very low in calories and rich in dietary fiber, supporting weight management
- Exceptionally high in vitamin C, contributing to immune and skin health
- Source of folate, vitamin A, and trace minerals including potassium and iron
- Long used in Ayurvedic and Traditional Chinese Medicine to support glycemic balance
Hidden Benefits
- Contains charantin, polypeptide-p, and vicine, plant compounds studied for blood-glucose-modulating effects
- Rich in momordicin, a cucurbitacin-type triterpene responsible for the characteristic bitterness and associated antioxidant activity
- Provides conjugated linolenic acid (alpha-eleostearic acid) studied for anti-inflammatory properties in vitro
Cautions & Considerations
- May lower blood glucose and interact with antidiabetic medications, risking hypoglycemia
- Unripe fruit and seeds contain momorcharin and vicine; seeds should not be consumed in large quantities
- Traditional sources advise avoidance during pregnancy due to potential uterine-stimulating and abortifacient activity
- Red-ripe fruits become toxic and intensely purgative; only green immature fruit is eaten as food
