Goji Berry Extract (50% Polysaccharides)
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Goji Berry Extract (50% Polysaccharides) standardized to 50% polysaccharides is a goji/wolfberry extract typically produced from Lycium barbarum. “50% polysaccharides” generally indicates standardization so that ~half of the extract is measured as Lycium barbarum polysaccharides (LBP), a heterogeneous group of complex carbohydrates studied for immunomodulatory and antioxidant-related effects. Because “polysaccharides” are not a single defined molecule, different suppliers may vary in the polysaccharide profile and test method; interpret research as product‑ and assay‑dependent rather than universally transferable.
| Benefit | Typical study dose* | Key human findings | High-quality sources |
|---|---|---|---|
| 1 Immune support (immunomodulation) | Wide variability across products; much of the immune signaling is supported by preclinical LBP research | Human evidence is limited and product-dependent; reviews generally place the strongest support in mechanistic and preclinical findings with smaller clinical datasets. | Immune activities of Lycium polysaccharides (review) |
| 2 Antioxidant & inflammation markers | Varies by study design and form (whole fruit vs extract) | Reviews commonly report antioxidant/anti-inflammatory activity; human outcomes vary by trial design and standardization. | Goji bioactives & health (review) |
| 3 Metabolic markers (lipids/glucose) — mixed | Varies; outcomes depend on baseline status and product form | Some human studies report improvements in triglycerides and HDL in certain settings, while other endpoints are inconsistent across trials. | Lycium barbarum supplementation (systematic review) |
| 4 Eye-health signals — stronger for whole goji berries | Whole berries (food) in clinical trials; benefits may reflect carotenoids (zeaxanthin) more than polysaccharides | Trials using goji berries as a food report increased serum zeaxanthin and macular pigment measures; this may not generalize to polysaccharide-focused extracts. | Goji berries & macular pigment (clinical trial) |
*Doses vary substantially between whole berries, juice preparations, and extracts. Prefer products with declared standardization and consistent assay; interpret benefits as product‑ and dose‑dependent rather than universal. See systematic review overview.
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