# Fujian Green Tea (Camellia sinensis)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/fujian-green-tea
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-04-01
**Evidence Score:** 2 / 10
**Category:** Tea Cultivars
**Also Known As:** Camellia sinensis var. Fujian, Fujian Cultivar Green Tea, Fujian Cha, Min Green Tea, Fujian Province Green Tea, Camellia sinensis (Fujian variety)

## Overview

Fujian green tea is a high-quality Camellia sinensis cultivar containing exceptionally concentrated catechins, particularly EGCG at 117-442 mg/L in infusions. These polyphenolic compounds provide [antioxidant protection](/ingredients/condition/antioxidant) through free radical scavenging and cellular protective mechanisms.

## Health Benefits

• Contains high levels of catechins (25% dry weight), particularly EGCG (117-442 mg/l in infusions) - Evidence quality: Compositional analysis only
• Provides [antioxidant](/ingredients/condition/antioxidant) polyphenols including epicatechin gallate (203-471 mg/l) - Evidence quality: Compositional data available
• Referenced for potential hypoglycemic activities - Evidence quality: Preliminary (no clinical data provided)
• Mentioned for possible anti-cancer properties - Evidence quality: Preliminary (no clinical trials in dossier)
• Noted for potential hypolipidemic activities - Evidence quality: Preliminary (no human studies provided)

## Mechanism of Action

EGCG and epicatechin gallate in Fujian green tea neutralize [reactive oxygen species](/ingredients/condition/antioxidant) through electron donation and chelation of metal ions. These catechins inhibit lipid peroxidation, protect cellular membranes, and modulate antioxidant enzyme systems including superoxide dismutase and catalase. The polyphenolic compounds also demonstrate [anti-inflammatory](/ingredients/condition/inflammation) effects through NF-κB pathway modulation.

## Clinical Summary

Current evidence for Fujian green tea is limited to compositional analyses showing high catechin concentrations of 25% dry weight. Laboratory studies confirm EGCG levels of 117-442 mg/L and epicatechin gallate at 203-471 mg/L in tea infusions. No specific clinical trials have been conducted on this particular cultivar, though general green tea research supports [antioxidant](/ingredients/condition/antioxidant) benefits. Evidence quality remains at the compositional level requiring human intervention studies for therapeutic claims.

## Nutritional Profile

Fujian Green Tea (Camellia sinensis) is a low-calorie beverage ingredient with negligible macronutrients in typical infusion form. Brewed tea contains approximately 0-2 kcal per 100ml, with trace proteins (<0.1g/100ml) and virtually no fat or carbohydrates in the liquid infusion. Key bioactive compounds dominate its nutritional significance: Total catechins reach 25% of dry leaf weight, with infusion concentrations ranging broadly depending on brewing parameters. EGCG (epigallocatechin gallate) is the predominant catechin at 117-442 mg/l in prepared infusions, representing the most studied bioactive fraction. Epicatechin gallate (ECG) is present at 203-471 mg/l. Additional catechins include epigallocatechin (EGC), epicatechin (EC), and catechin gallate at lower concentrations. Total polyphenol content in dry leaf is estimated at 30-35% by weight. L-theanine (amino acid) is present at approximately 1-2% dry weight, contributing to flavor and neuromodulatory properties. Caffeine content is approximately 2-3% dry weight, yielding roughly 30-50mg per 250ml serving. Micronutrients include manganese (~0.5mg/100ml brewed), fluoride (~0.1-0.3mg/100ml), and trace amounts of potassium, magnesium, and zinc. Vitamin K is present in dry leaf (~59mcg/100g dry weight) but minimal in infusion. Chlorophyll contributes [antioxidant activity](/ingredients/condition/antioxidant). Bioavailability notes: Catechin absorption is moderate (intestinal absorption ~1.68% for EGCG), significantly reduced by milk proteins and alkaline pH; bioavailability enhanced by acidic conditions (lemon juice) and consumption on an empty stomach. Brewing at 70-80°C preserves catechin content better than boiling water.

## Dosage & Preparation

No clinically studied dosage ranges are available in the research. Compositional analysis shows caffeine content of 141-338 mg/l in green tea infusions, but this represents analytical data rather than clinical dosing recommendations. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Fujian green tea contains caffeine and may cause [insomnia](/ingredients/condition/sleep), anxiety, or digestive upset in sensitive individuals. High catechin intake can reduce iron absorption and may interact with anticoagulant medications due to vitamin K content. Pregnant women should limit consumption to 200mg caffeine daily. Individuals with liver conditions should consult healthcare providers as concentrated green tea extracts have rare hepatotoxicity reports.

## Scientific Research

The research dossier contains no specific human clinical trials, randomized controlled trials, or meta-analyses focused on Fujian Green Tea. While general pharmacological properties are referenced, no PubMed PMIDs, study designs, or clinical outcomes are provided in the available sources.

## Historical & Cultural Context

The research dossier contains no information about traditional use of Fujian Green Tea in historical medicine systems. No details are provided regarding which cultures employed it or conditions it was traditionally used to treat.

## Synergistic Combinations

Other green tea extracts, L-theanine, vitamin C, quercetin, EGCG standardized extract

## Frequently Asked Questions

### What makes Fujian Green Tea different from other green teas?

Fujian Green Tea contains exceptionally high levels of catechins at 25% of its dry weight, with EGCG concentrations ranging from 117-442 mg/l in brewed infusions. This cultivar variant of Camellia sinensis also provides significant amounts of epicatechin gallate (203-471 mg/l), making it particularly rich in antioxidant polyphenols compared to standard green tea varieties.

### How much EGCG is in Fujian Green Tea compared to regular green tea?

Fujian Green Tea contains 117-442 mg/l of EGCG (epigallocatechin gallate) when brewed as an infusion. This represents one of the higher concentrations found in green tea cultivars, as the catechins make up 25% of the tea's dry weight, providing substantial antioxidant activity per serving.

### Can Fujian Green Tea help with blood sugar control?

Fujian Green Tea has been referenced for potential hypoglycemic activities, though this is based on preliminary research without clinical data. The high catechin content, particularly EGCG at 117-442 mg/l, may contribute to blood sugar regulation mechanisms, but more human studies are needed to confirm these effects.

### What antioxidant compounds are found in Fujian Green Tea?

Fujian Green Tea is rich in antioxidant polyphenols, including EGCG (117-442 mg/l) and epicatechin gallate (203-471 mg/l) in brewed infusions. The total catechin content reaches 25% of the tea's dry weight, making it an exceptionally potent source of these protective compounds.

### How should Fujian Green Tea be prepared to maximize its benefits?

Fujian Green Tea should be prepared as a hot water infusion to properly extract the soluble catechin compounds including EGCG and epicatechin gallate. The hot water extraction method dissolves the beneficial polyphenols from the processed leaves, leaf buds, and stems of this Camellia sinensis cultivar variant.

### Is Fujian Green Tea safe to consume daily, and are there any side effects?

Fujian Green Tea is generally recognized as safe for daily consumption as a beverage, with safety profiles consistent with standard green tea intake. However, excessive consumption (more than 8 cups daily) may lead to caffeine-related side effects such as jitteriness, sleep disruption, or stomach upset due to its catechin content. Individuals sensitive to caffeine or with certain gastrointestinal conditions should moderate their intake and consult a healthcare provider.

### Does Fujian Green Tea interact with blood pressure or diabetes medications?

Fujian Green Tea's catechins may have mild blood sugar-lowering properties, which could theoretically potentiate diabetes medications, though clinical evidence is limited to preliminary studies. Individuals taking antihypertensive or antidiabetic medications should inform their healthcare provider before using Fujian Green Tea supplements regularly. Beverage consumption in normal amounts is unlikely to cause significant interactions, but supplemental forms warrant medical oversight.

### What is the difference between Fujian Green Tea extract and brewed leaf, and which form provides better absorption?

Fujian Green Tea extract is concentrated and standardized for catechin content, potentially delivering higher bioavailable EGCG and epicatechin gallate per dose compared to brewed leaves. Brewed tea allows for gradual absorption and includes beneficial compounds lost during extraction, but provides lower overall polyphenol concentration per serving. Extract forms may offer faster absorption and convenience, while whole leaf preparations provide a more complete polyphenol profile and slower, sustained absorption.

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