Goji Berry for Immune Function

Research suggests that the direct evidence for goji berry supporting immune function in humans is quite limited based on the studies available here. One review examining plant-based compounds and immune function in athletes found inconsistent and largely weak evidence across related botanical alkaloids, and did not specifically address goji berry polysaccharides. The only study directly investigating Lycium barbarum polysaccharide (LBP) and immune responses was conducted in farmed freshwater prawns rather than humans, finding that dietary LBP enhanced antioxidant enzyme activity and immune markers in crustaceans under stress conditions. While this animal study points to a plausible biological mechanism involving immune and antioxidant pathways, the findings cannot be directly applied to human immune function, and the current body of evidence is too narrow and indirect to draw meaningful conclusions for human use.