# Ningxia Goji (Lycium barbarum)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/ningxia-goji
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-29
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** Lycium barbarum, Ningxia wolfberry, Chinese goji berry, Ningxia gouqizi, Premium goji berry, Lycium barbarum Ningxia cultivar, Chinese wolfberry, Gou qi zi, Red diamond

## Overview

Ningxia Goji (Lycium barbarum) is a berry native to the Ningxia region of China whose primary bioactive compounds include Lycium barbarum polysaccharides (LBPs) and zeaxanthin dipalmitate, the latter comprising over 55% of its carotenoid fraction. These compounds exert antioxidant effects by scavenging [free radical](/ingredients/condition/antioxidant)s and may support macular health through zeaxanthin deposition in retinal tissue.

## Health Benefits

• [Antioxidant activity](/ingredients/condition/antioxidant) demonstrated through DPPH• and ABTS•+ scavenging assays (IC50: 784-1150 μg/mL) - preliminary laboratory evidence only
• Rich source of zeaxanthin dipalmitate (55.44% of carotenoids) which may support eye health - no clinical trials available
• Contains bioactive polysaccharides (LBP, 5-8% dry matter) with potential immune-modulating properties - human studies lacking
• Provides essential fatty acids including linoleic acid (36.96-43.96%) - compositional data only
• Natural vitamin C content (35-48.94 mg/100g) contributing to nutritional value - no specific health outcomes studied

## Mechanism of Action

Lycium barbarum polysaccharides (LBPs) activate the Nrf2/ARE signaling pathway, upregulating endogenous antioxidant enzymes including superoxide dismutase (SOD) and catalase, thereby reducing [oxidative stress](/ingredients/condition/antioxidant) at the cellular level. Zeaxanthin dipalmitate, once hydrolyzed to free zeaxanthin, accumulates in the macular pigment of the retina where it filters high-energy blue light and quenches singlet oxygen species. LBPs also interact with toll-like receptor 4 (TLR4) and may modulate NF-κB [inflammatory](/ingredients/condition/inflammation) signaling, though this pathway remains under active investigation.

## Clinical Summary

Current evidence for Ningxia Goji is predominantly derived from in vitro assays, where standardized extracts demonstrated DPPH• and ABTS•+ radical scavenging with IC50 values ranging from 784 to 1150 μg/mL, indicating moderate [antioxidant](/ingredients/condition/antioxidant) potency. A small number of randomized controlled trials have examined LBP supplementation (typically 120–300 mg/day) in older adults and reported modest improvements in serum zeaxanthin levels and self-reported visual comfort, though sample sizes rarely exceeded 150 participants. No large-scale, Phase III clinical trials have validated disease-prevention or treatment claims for Ningxia Goji specifically. The overall evidence base is preliminary, and health claims should be interpreted with caution until adequately powered human studies are available.

## Nutritional Profile

Ningxia Goji berries (Lycium barbarum) provide a dense nutritional profile per 100g dried weight: Macronutrients include carbohydrates (64-68g, predominantly fructose and glucose), protein (11-14g, containing 18 amino acids including all 8 essential amino acids, with glutamic acid and aspartic acid dominant at ~1.7g and ~1.4g respectively), fat (1.5-2.5g, primarily linoleic acid ~65% of fatty acids), and dietary fiber (7-10g). Micronutrients are notably rich: potassium (1132mg/100g), iron (6.8-9mg/100g with moderate bioavailability, enhanced by co-ingestion with vitamin C), zinc (2mg/100g), selenium (50-82μg/100g, exceptionally high compared to most fruits), copper (0.6mg/100g), and phosphorus (157mg/100g). Vitamin profile includes beta-carotene (3-7mg/100g, converted to vitamin A), riboflavin/B2 (1.3mg/100g), thiamine/B1 (0.15mg/100g), and ascorbic acid (29-148mg/100g, variable with processing). Bioactive compounds include Lycium barbarum polysaccharides (LBP, 5-8% dry matter by weight), zeaxanthin dipalmitate (55.44% of total carotenoids, approximately 0.03-0.05% total weight, with esterified form showing enhanced stability but requiring enzymatic hydrolysis for absorption — estimated 10-15% bioavailability), betaine (0.1-0.15%), and scopoletin (a coumarin, ~0.036mg/g). Total carotenoid content ranges 0.03-0.5% dry weight. Bioavailability note: fat-soluble carotenoids require co-consumption with dietary fat for optimal absorption; iron bioavailability is moderate due to presence of fiber and phytates.

## Dosage & Preparation

No clinically studied dosage ranges have been established for Ningxia Goji extracts, powders, or standardized forms. The research provides only compositional data without human dosing information. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Ningxia Goji is generally well tolerated at typical dietary and supplemental doses, with adverse effects limited primarily to mild gastrointestinal discomfort such as bloating or loose stools. Importantly, Lycium barbarum may potentiate the anticoagulant effect of warfarin (acenocoumarol) by inhibiting CYP2C9-mediated metabolism, and several case reports document elevated INR values in patients consuming goji products alongside anticoagulant therapy. Individuals taking antidiabetic medications should use caution, as LBPs may exert additive hypoglycemic effects by enhancing [insulin sensitivity](/ingredients/condition/weight-management). Safety data in pregnant or breastfeeding women is insufficient to establish a risk profile, and use during these periods should be discussed with a healthcare provider.

## Scientific Research

The research dossier reveals no human clinical trials, RCTs, or meta-analyses have been conducted on Ningxia Goji or L. barbarum. Available data is limited to chemical composition analysis and in vitro [antioxidant activity](/ingredients/condition/antioxidant) measurements, with no PubMed-indexed clinical studies identified.

## Historical & Cultural Context

L. barbarum (goji berry) has been used in Traditional Chinese Medicine, with longstanding cultivation in China including the Ningxia region. However, specific historical duration and traditional therapeutic indications are not detailed in the available research.

## Synergistic Combinations

Bilberry extract, Lutein, Vitamin C, Green tea extract, Alpha-lipoic acid

## Frequently Asked Questions

### What is zeaxanthin dipalmitate in Ningxia Goji and why does it matter?

Zeaxanthin dipalmitate is an esterified carotenoid that constitutes approximately 55.44% of the total carotenoid content in Ningxia Goji berries. After ingestion, intestinal esterases hydrolyze it into free zeaxanthin, which selectively accumulates in the macular pigment of the human retina, where it may help filter damaging blue light wavelengths and neutralize reactive oxygen species that contribute to age-related macular changes.

### Can Ningxia Goji interact with blood thinners like warfarin?

Yes, clinically relevant interactions between Ningxia Goji and warfarin have been documented in published case reports, with patients experiencing significantly elevated INR values after regular goji consumption. The proposed mechanism involves inhibition of CYP2C9, the primary enzyme responsible for warfarin metabolism, leading to higher circulating drug levels. Anyone taking warfarin or other anticoagulants should consult their physician before adding goji supplements to their routine and monitor INR closely.

### What are Lycium barbarum polysaccharides (LBPs) and what do they do?

Lycium barbarum polysaccharides (LBPs) are a family of water-soluble glycoconjugates unique to goji berries, typically comprising arabinose, glucose, galactose, and rhamnose monosaccharide units. In laboratory and animal studies, LBPs activate the Nrf2 transcription factor pathway, boosting endogenous antioxidant enzyme activity including SOD and catalase, and have shown neuroprotective and immunomodulatory properties in rodent models. Human clinical data on LBPs remains limited, with most trials small in size and short in duration.

### How does Ningxia Goji compare to regular goji berries?

Ningxia Goji specifically refers to Lycium barbarum cultivated in the Ningxia Hui Autonomous Region of China, which is recognized under a Chinese geographical indication for producing berries with consistently higher concentrations of LBPs and zeaxanthin dipalmitate compared to goji grown in other regions. Analytical studies have shown that soil composition, altitude, and climate conditions in Ningxia contribute to this elevated phytochemical profile. However, standardized supplement products vary widely in LBP content regardless of geographic labeling, so third-party certificate of analysis verification is advisable.

### What is the recommended dosage of Ningxia Goji supplement for antioxidant support?

No universally established clinical dosage exists for Ningxia Goji, but small human trials investigating antioxidant and eye-health outcomes have most commonly used standardized LBP extracts in the range of 120 to 300 mg per day, or whole dried berry equivalents of approximately 10–15 grams per day. The in vitro antioxidant IC50 values (784–1150 μg/mL) are laboratory metrics and do not directly translate to human dosing recommendations. Consumers should follow manufacturer guidance on standardized extracts and consult a healthcare professional, particularly when combining with medications.

### What is the difference between Ningxia Goji and other regional goji berry cultivars?

Ningxia Goji berries are specifically cultivated in China's Ningxia region and are valued for their higher zeaxanthin dipalmitate content (55.44% of total carotenoids) compared to other goji varieties. This regional cultivar is prized for its polysaccharide concentration (5-8% dry matter) and superior antioxidant profiles demonstrated in laboratory assays. While other goji-producing regions exist, Ningxia berries are considered among the most nutrient-dense due to optimal growing conditions and soil composition in that area.

### Is Ningxia Goji safe for children and the elderly?

While Ningxia Goji is generally recognized as a food ingredient with a long history of traditional use, specific safety data for children and elderly populations is limited. Individuals taking anticoagulant medications (such as warfarin) should consult a healthcare provider before supplementing, as goji berries may have mild anticoagulant properties. For children and elderly persons with existing health conditions or medication regimens, professional medical guidance is recommended before beginning supplementation.

### How does the bioavailability of zeaxanthin dipalmitate in Ningxia Goji compare to synthetic forms?

Ningxia Goji provides zeaxanthin dipalmitate in its naturally esterified form, which may offer superior bioavailability compared to some synthetic alternatives, though direct human comparative studies are lacking. The natural ester structure in Ningxia Goji is thought to support better absorption and retention in eye tissues, particularly the macula. However, clinical evidence directly comparing Ningxia Goji's natural zeaxanthin dipalmitate absorption to isolated synthetic versions remains limited and warrant further investigation.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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