Goji Berry Seeds

Lycium barbarum is a woody, thorny shrub with arching branches, small purple funnel-shaped flowers and bright orange-red, oval berries about 1 to 2 cm long. Each berry holds around ten to sixty small, flat, yellowish seeds, roughly 1 to 2 mm across, that are scarcely noticeable when the fruit is eaten. Dried goji berries are chewy and sweet-tart, with a slightly herbal and tomato-like note, and the crunchy seeds are swallowed with the fruit. Separated seeds are sold mainly for sowing, and the seed oil is a small specialty product. Whole dried berries, juice, powders and extracts are the common retail forms.

Lycium barbarum is native to China, where it has been cultivated for centuries in the northwest, especially in Ningxia. Related Lycium species grow across Asia, Europe and the Americas. The genus name Lycium is thought to derive from Lycia, an ancient region of Anatolia, while barbarum means foreign or from the barbarians. In China the fruit is called gouqizi, and in English it is known as goji, a name adapted from that term, or as wolfberry, which is a translation of its Chinese name.

Goji berries appear in Chinese materia medica for well over a thousand years and are traditionally associated with the liver and kidney and with the eyes. Ningxia, on the Yellow River plain, became the best known growing region, and its berries were prized as tribute goods and traded across the country. Folklore claims that goji eaters lived to extraordinary ages, but such stories belong to legend rather than record.

The plant reached Europe in the eighteenth century, when it was introduced as an ornamental hedge, and one famous English name, Duke of Argyll's tea tree, comes from that period. For a long time it was mostly a garden curiosity in the West.

Goji came to global attention in the early 2000s as a marketed superfruit. Juice and dried berries were sold with sweeping health claims, which regulators in some regions challenged. Today China remains the dominant producer, and the berries are used in soups, teas and desserts across East Asia. The seeds have attracted separate study as a byproduct, since they contain oil and other compounds, but they remain a minor commodity compared with the fruit.

In Chinese cooking dried berries are simmered in soups, herbal chicken broths, congee, tea and sweet desserts, where they soften and add a gentle sweetness. In the West they are added to trail mix, granola, smoothies and baked goods. Seeds are eaten with the dried fruit, or collected from fresh berries and sown for propagation in spring. Seed oil is sometimes used in cosmetics and has been studied as a food oil, while the leaves are sometimes brewed as tea or cooked as greens in parts of Asia. Berries are usually soaked briefly before use.

Goji berries provide carotenoids, vitamin C, fibre and distinctive polysaccharides, and the fruit is a traditional food in East Asian diets. Small clinical trials suggest possible effects on markers such as antioxidant status or eye pigment density, but studies are limited in size and quality, and no health claim should be treated as established. The seeds contribute fibre and oil but there is little specific research on them as a standalone food.