Herbs (Global Traditional) · TCM
Lycium barbarum
Strong Evidencebotanical
Hermetica Superfood Encyclopedia
Lycium barbarum (goji berries) contains zeaxanthin and polysaccharides that provide antioxidant activity through free radical scavenging mechanisms. The fruit demonstrates DPPH radical scavenging with IC50 values of 830-950 μg/mL and provides significant vitamin C content.
Lycium barbarum, commonly known as goji berry, is a deciduous shrub in the Solanaceae family native to Asia, particularly China, where its bright red fruits are harvested. The bioactive components are extracted mainly via water or methanol methods to isolate polysaccharides (LBP), carotenoids, and phenolic compounds.
The research dossier lacks specific human clinical trials, RCTs, or meta-analyses for Lycium barbarum. Current evidence is limited to chemical composition studies, nutritional profiles, and in vitro antioxidant activity assessments rather than clinical outcome data.
No clinically studied dosage ranges are available from human trials. Studies mention standardization to LBP (Lycium barbarum polysaccharides) but without associated dosing recommendations. Consult a healthcare provider before starting any new supplement.
Lycium barbarum's antioxidant effects primarily stem from zeaxanthin and polysaccharide compounds that neutralize free radicals through electron donation. The zeaxanthin content specifically targets reactive oxygen species, while polysaccharides enhance cellular antioxidant enzyme systems including superoxide dismutase and catalase. These compounds work synergistically to reduce oxidative stress markers and protect cellular membranes from lipid peroxidation.
Current evidence for Lycium barbarum is limited primarily to in vitro antioxidant studies showing DPPH radical scavenging activity with IC50 values of 830-950 μg/mL. Compositional analyses confirm significant nutritional content including 35 mg vitamin C per 100g fresh fruit, 46% carbohydrates, and 13% protein. Human clinical trials are sparse, with most research conducted in laboratory settings rather than controlled human studies. The evidence base requires expansion through randomized controlled trials to establish clinical efficacy and optimal dosing protocols.
Lycium barbarum is generally recognized as safe when consumed as food, with minimal reported adverse effects in healthy individuals. Potential interactions may occur with anticoagulant medications due to compounds that could affect blood clotting mechanisms. Individuals with autoimmune conditions should exercise caution as polysaccharides may stimulate immune system activity. Pregnancy and lactation safety data is insufficient, requiring medical supervision for use during these periods.
