Fluted Pumpkin Seed

Telfairia occidentalis is a climbing, perennial vine of the gourd family that can grow several meters on trellises or trees. It produces large, ribbed, rather oblong gourds that can be 30 to 60 cm long and weigh several kilograms, with deep ridges that give the fruit its fluted look. Each gourd holds dozens of flat, oval, creamy-white to brown seeds about 3 to 4 cm long and embedded in fibrous pulp. The seed kernel is rich in oil and protein, with a mild, nutty flavor similar to a cashew-like or squash seed taste. The seeds are sold fresh, dried and roasted, or ground, and the leaves are sold as a leafy vegetable.

The fluted pumpkin is native to southern Nigeria and the surrounding region of West Africa, where it has been cultivated for generations in home gardens. It is also grown in Ghana, Cameroon, Benin and other countries. The common name refers to the ribbed fruit, though it is not a true pumpkin of the genus Cucurbita. The genus is named for Charles Telfair, an Irish naturalist who sent specimens of a related species from Mauritius in the nineteenth century, and occidentalis is Latin for western. Ugu is the Igbo name used widely in Nigeria.

The fluted pumpkin has been grown as a food plant by peoples of southern Nigeria, especially the Igbo, for centuries. Its leaves, called ugu, are central to Nigerian soups such as edikang ikong and vegetable stews, and are valued as a nourishing food for new mothers and for children. The seeds were also an important source of oil and protein. They were boiled and eaten as a snack, or ground into pastes and used to thicken soups, and the oil pressed from the seeds served for cooking.

Because the vine produces many seeds, farmers sometimes keep the fruits in storage as seed stock, and women often tended the plants in compound gardens. As Nigerians and West Africans migrated, ugu became a familiar vegetable in diaspora communities, and it is now grown in other warm regions.

Researchers have taken an interest in the plant for its seed oil and protein and for the nutrient content of the leaves. Its role as a cash crop in Nigeria is growing, although production still depends largely on smallholder farms.

The seeds are boiled, roasted, or fried and eaten as a snack, or ground into flour and used to thicken soups and stews. The cold-pressed oil is used for cooking and in some areas for soap and cosmetics. The leaves are cooked in soups, stews and sauces and are valued as a vegetable. Traditionally, extracts of the leaf and seed have been used in folk remedies for anemia and weakness, though modern evidence is limited. Seeds are also fed to animals, and the pressed cake is used as feed.

Fluted pumpkin seeds are rich in fat and protein, including a high share of unsaturated fatty acids, along with minerals such as potassium, magnesium, and phosphorus. The leaves are a source of iron and vitamins. Animal and laboratory studies have explored effects on blood and blood sugar, but human clinical data are scarce, and traditional uses should not be taken as medical proof. Like other seeds, they are energy dense, so portion size matters.