Goji Berries are rich in antioxidants, particularly cartenoids such as beta-carotene and zeaxanthin. One of zeaxanthin’s key roles is to protect the retina of the eye by absorbing blue light and acting as an antioxidant. In fact, increased intake of foods containing zeathanthin by decrease the risk of developing eye-related macular degeneration(AM), the leading cause of vision loss and blindness in people over the age of 65.

In recent years, goji juice become popular as a health beverage. Companies marketing goji juice oftern mention the unsupported clain that a man named Li Qing Yuan consumed goji berries daily and lived to be 262 years old.

Marketers also list extensive health benefit of goji juice, even through there are few published clinical trials in humans.