# Green Select Phytosome (Green Tea Extract)

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/green-select-phytosome
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-31
**Evidence Score:** 2 / 10
**Category:** Other
**Also Known As:** GreenSelect Phytosome, Decaffeinated Green Tea Phytosome, Green Tea Catechin Phytosome, Camellia sinensis Phytosome, Enhanced Green Tea Extract, Phospholipid-bound Green Tea Extract, Indena Green Tea Phytosome

## Overview

Green Select Phytosome is a phospholipid-bound green tea extract containing EGCG (epigallocatechin gallate) with enhanced bioavailability. It primarily works by inhibiting catechol-O-methyltransferase (COMT) enzyme, increasing fat oxidation and [metabolic rate](/ingredients/condition/weight-management).

## Health Benefits

• Metabolic syndrome support: In a 24-week registry study (n=50), 68% of treated participants shifted out of borderline metabolic syndrome status vs 20% in controls (Moderate evidence, PMID: 24299907)
• Weight management: Clinical research demonstrated sustained benefits in body weight maintenance post-weight loss (Moderate evidence, PMID: 27550991)
• [Oxidative stress](/ingredients/condition/antioxidant) reduction: The same 24-week study showed significant improvements in oxidative stress markers in borderline metabolic syndrome subjects (Moderate evidence, PMID: 24299907)
• [Cardiovascular health](/ingredients/condition/heart-health): Participants experienced significant improvements in blood pressure and blood lipids over 24 weeks (Moderate evidence, PMID: 24299907)
• Enhanced antioxidant capacity: Manufacturer claims cite superior antioxidant effects versus unformulated green tea, though full RCT details not available (Preliminary evidence)

## Mechanism of Action

Green Select Phytosome delivers EGCG through phospholipid complexation, increasing absorption up to 3-fold compared to standard green tea extracts. EGCG inhibits catechol-O-methyltransferase (COMT), prolonging norepinephrine activity and enhancing [thermogenesis](/ingredients/condition/weight-management). The compound also activates AMPK pathways and inhibits fatty acid synthase, promoting fat oxidation and metabolic efficiency.

## Clinical Summary

A 24-week registry study (n=50) showed 68% of participants treated with Green Select Phytosome shifted out of borderline metabolic syndrome status versus 20% in controls. Clinical research demonstrates sustained benefits in body weight maintenance, though specific weight loss data requires larger controlled trials. The phytosome formulation shows superior bioavailability compared to standard green tea extracts, with evidence suggesting moderate strength for metabolic syndrome support.

## Nutritional Profile

Green Select Phytosome is a standardized green tea extract (Camellia sinensis) complexed with phosphatidylcholine (from soy lecithin) in a 2:1 ratio (phosphatidylcholine:green tea extract) to enhance bioavailability. Key bioactive compounds include: Epigallocatechin gallate (EGCG): primary catechin, standardized to approximately 45-50% total catechins by weight; total catechins typically 60-75% of extract weight, including epicatechin (EC), epigallocatechin (EGC), and epicatechin gallate (ECG). Caffeine content is reduced or absent depending on the specific formulation variant (decaffeinated versions contain <0.5% caffeine). The phytosome complex incorporates phosphatidylcholine at approximately 40% by weight of the final complex, which forms a lipid-compatible molecular complex with catechin polyphenols. Bioavailability notes: The phosphatidylcholine complexation increases oral bioavailability of EGCG by approximately 1.3-3.5-fold compared to unformulated green tea extract, as demonstrated in pharmacokinetic studies, due to improved intestinal absorption across lipid membranes. Typical clinical doses used in studies range from 300-450 mg of the phytosome complex per day. No meaningful macronutrient (protein, fat, carbohydrate) or micronutrient (vitamins, minerals) content at supplemental doses. Fiber content is negligible. The primary nutritional contribution is entirely via bioactive polyphenol catechins, particularly EGCG, which acts on metabolic and [antioxidant](/ingredients/condition/antioxidant) pathways.

## Dosage & Preparation

Clinically studied doses range from 250 mg taken 2-3 times daily (total 500-750 mg/day), standardized to ≥19-25% total polyphenols and ≥13% EGCG. The 24-week registry study used 250-500 mg/day in coated tablet form. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Green Select Phytosome is generally well-tolerated with minimal side effects reported in clinical studies. Potential interactions may occur with blood thinners due to green tea's vitamin K content and with iron absorption. Individuals with caffeine sensitivity should exercise caution, though phytosome forms typically contain lower caffeine levels. Pregnant and breastfeeding women should consult healthcare providers before use due to limited safety data.

## Scientific Research

A single-blind, controlled registry study (n=50, PMID: 24299907) tested GreenSelect Phytosome at 250-500 mg/day for 24 weeks in subjects with borderline metabolic syndrome, showing significant improvements in weight, blood lipids, [blood pressure](/ingredients/condition/heart-health), and [oxidative stress](/ingredients/condition/antioxidant) markers. Another study (PMID: 27550991) evaluated its effectiveness for weight maintenance post-weight loss, demonstrating sustained metabolic benefits. While manufacturer claims cite additional human trials, full RCT or meta-analysis details are not available in the research dossier.

## Historical & Cultural Context

While green tea (Camellia sinensis) has been used in Traditional Chinese Medicine for over 2,000 years to aid [digestion](/ingredients/condition/gut-health), promote [longevity](/ingredients/condition/longevity), and provide [antioxidant](/ingredients/condition/antioxidant) benefits, GreenSelect Phytosome itself is a modern proprietary formulation without direct historical precedent. The Phytosome technology represents a contemporary advancement in botanical extract delivery.

## Synergistic Combinations

Berberine, chromium picolinate, alpha-lipoic acid, conjugated linoleic acid (CLA), gymnema sylvestre

## Frequently Asked Questions

### How much more bioavailable is Green Select Phytosome than regular green tea extract?

Green Select Phytosome demonstrates up to 3-fold higher bioavailability of EGCG compared to standard green tea extracts. The phospholipid complexation protects EGCG from degradation and enhances intestinal absorption.

### What is the typical dosage of Green Select Phytosome for metabolic benefits?

Clinical studies typically use 150-300mg daily of Green Select Phytosome, standardized to contain 50-100mg EGCG. The 24-week metabolic syndrome study used 150mg twice daily with meals.

### Does Green Select Phytosome contain caffeine like regular green tea?

Green Select Phytosome contains minimal caffeine, typically less than 5mg per serving, compared to 25-50mg in regular green tea extracts. The extraction and purification process removes most caffeine while preserving EGCG content.

### How long does it take to see metabolic benefits from Green Select Phytosome?

The clinical study on metabolic syndrome showed significant improvements after 24 weeks of supplementation. Some metabolic markers may improve within 8-12 weeks, but sustained benefits require consistent long-term use.

### Can Green Select Phytosome interact with diabetes medications?

Green Select Phytosome may enhance insulin sensitivity and glucose metabolism, potentially affecting blood sugar levels. Diabetic patients should monitor glucose closely and consult healthcare providers before use, especially with insulin or sulfonylurea medications.

### What clinical evidence supports Green Select Phytosome for metabolic syndrome?

A 24-week registry study (n=50) demonstrated that 68% of participants treated with Green Select Phytosome shifted out of borderline metabolic syndrome status compared to only 20% in the control group, providing moderate-quality evidence for its metabolic benefits. The same study also showed oxidative stress reduction markers improved significantly in the treatment group. This represents one of the stronger clinical datasets available for green tea extract supplementation in metabolic health.

### Is Green Select Phytosome effective for weight maintenance after weight loss?

Clinical research has demonstrated that Green Select Phytosome provides sustained benefits for body weight maintenance during the post-weight loss phase, with moderate evidence supporting its use as part of a weight management strategy. The phytosome formulation appears particularly useful for preventing weight regain rather than initial weight loss. This makes it especially relevant for individuals who have already achieved weight loss goals and want to stabilize their results.

### Who are the ideal candidates for Green Select Phytosome supplementation?

Green Select Phytosome is particularly beneficial for individuals with borderline metabolic syndrome, those seeking oxidative stress reduction, and people in the maintenance phase following weight loss. It may also appeal to those who want green tea's antioxidant benefits without significant caffeine intake, since the phytosome formulation typically provides minimal caffeine compared to brewed green tea. Individuals already taking metabolic or diabetes-related medications should consult with a healthcare provider before supplementing.

---

*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
*License: CC BY-NC-SA 4.0 — Attribution required. Commercial use: admin@hermeticasuperfoods.com*