Goji

Lore & Background

The genus name Lycium was assigned by Linnaeus in 1753, derived from the Greek word λύκιον (lykion) used by Pliny the Elder and Pedanius Dioscorides for a plant known as dyer's buckthorn. The common English name wolfberry has an unknown origin, possibly from a mistaken assumption that Lycium derived from Greek λύκος (lycos), meaning 'wolf'. The name goji berry has been used in the English-speaking world since around 2000, approximating the pronunciation of 枸杞 (gǒuqǐ) in several Chinese dialects.

In traditional East Asian cuisine, young shoots and leaves are harvested as a leaf vegetable, and the berries are used as a garnish or source of sweetness. In traditional Chinese, Japanese, and Korean medicine, the fruit (lycii fructus) and leaves (herba lycii) have been ingredients since at least the 3rd century AD. Since the early 21st century, dried goji berries have been marketed as a health food with unsupported claims, leading to regulatory actions by the U.S. Food and Drug Administration and a class action lawsuit against a distributor.

Reader's Guide

Goji berries are significant as a traditional East Asian food and medicinal ingredient that gained global popularity as a supposed 'superfruit' in the early 21st century. The fruit is primarily cultivated in China's Ningxia and Xinjiang regions, with China being the main global supplier. Marketing controversies have arisen from exaggerated health claims, including an unsupported story of a man who allegedly lived to 256 years by consuming wolfberries daily. Regulatory agencies such as the U.S. FDA have issued warning letters about unproven therapeutic benefits, and a class action lawsuit resulted in a settlement requiring a distributor to stop marketing products as 'unheated' or 'raw'. Scientific research has analyzed the fruit's composition, including carotenoids, polysaccharides, and polyphenols, but clinical evidence for health benefits remains limited and low-quality. Safety concerns include potential drug interactions with medications processed by cytochrome P450 liver enzymes and detection of pesticide and fungicide residues in some imported Chinese products. The legacy of goji lies in its transition from a regional traditional ingredient to a globally marketed commodity, illustrating tensions between traditional use, commercial promotion, and regulatory oversight.

Did You Know?

• The Latin name lycium is derived from the Greek word λύκιον (lykion), used by Pliny the Elder and Pedanius Dioscorides for a plant known as dyer's buckthorn.
• In the United States, varieties of the genus are given common names such as desert-thorn, boxthorn, matrimony vine, and wolfberry.
• A 2003 booklet by Earl Mindell falsely claimed that a Chinese man named Li Qing Yuen lived to 256 years by consuming wolfberries daily.
• In 2019–2020, the U.S. FDA placed two goji product distributors on notice with warning letters about unproven therapeutic benefits.