Karela is a bitter green fruit that grows on a vine known as Momordica charantia. It is commonly cultivated in South Asian countries like India, Nepal, and Bangladesh. The fruit has a dark green color and intensely bitter taste. It contains compounds like charantin and momordicin that are believed to lower blood sugar levels and have other medicinal properties like treating rheumatism, improving blood circulation, and potentially preventing cancer. Karela is traditionally used to treat disorders of the spleen, liver, and as a stomachic and carminative.