Key Takeaways
Clinically Proven Formula
Contains 340mg galloylated catechins per 7.2g serving, scientifically shown to reduce body fat and improve BMI over 12 weeks.
Convenient Daily Routine
Mix 2.4g powder in 300ml hot or cold water, three times daily with meals. Instant dissolving formula requires no brewing.
Premium Japanese Quality
Made with 100% domestically sourced Japanese tea leaves selected for high catechin content, blended with smooth matcha.
Trusted Heritage
From Ito En, Japan's leading tea company for over 48 years. Their catechin products have achieved over 1.9 billion units sold.
Best For
Those with elevated BMI seeking evidence-based functional food support for weight management and fat absorption inhibition.
Market Leader
No.1 in functional food beverage sales in Japan for 5 consecutive years according to Intage SRI+ market research.
Is This Right For You?
Recommended For
This oi ocha green tea for weight loss is designed for individuals seeking natural, evidence-based support for body fat reduction and BMI improvement.
If you want to reduce visceral and subcutaneous body fat naturally through functional food support
If you have an elevated BMI and are seeking government-recognized functional ingredients for weight management
If you're looking to inhibit dietary fat absorption during meals without prescription medications
If you're a busy professional who prefers convenient instant tea over traditional brewing methods
If you want evidence-based functional ingredients backed by Foods with Function Claims approval
If you enjoy rich, astringent green tea flavor with smooth matcha notes in your daily routine
If you're seeking a caffeinated beverage that supports metabolic health while providing energy
If you're committed to consistent daily wellness routines and want measurable fat reduction benefits
Why It Works
Benefits
Ito En Koi-cha Matcha Powder delivers comprehensive body fat reduction support through clinically studied galloylated catechins.
Reduces Visceral & Subcutaneous Fat
Galloylated catechins work by inhibiting pancreatic lipase, the enzyme that breaks down dietary fats. This mechanism reduces fat absorption in your digestive tract while increasing fat excretion, leading to measurable reductions in both visceral and subcutaneous fat over 12 weeks.
Food with Function Claims (H49)Improves BMI Naturally
Clinical studies demonstrate that consistent daily intake of 340mg galloylated catechins significantly improves BMI, particularly for individuals with BMI values of 25 or higher. The fat-blocking mechanism works best when consumed with meals during digestion.
Government-registered functional claimActivates Lipid Metabolism
Beyond blocking fat absorption, galloylated catechins activate lipid metabolism in the liver. This enhances your body's natural energy expenditure and promotes the breakdown of stored fat deposits, creating cumulative benefits with continuous use.
Research-backed mechanismConvenient Daily Wellness Support
Instant-dissolving powder works equally well in hot or cold water, making it easy to maintain your three-times-daily routine. No brewing required, just mix, stir, and drink with meals for maximum fat-blocking effectiveness.
Consumer validated convenienceThe Science
How It Works
Understanding how galloylated catechins in this ito en green tea help reduce body fat.
Fat Absorption Inhibition Mechanism
Key functions:
- Blocks lipase enzyme activity
- Prevents fat breakdown in digestive tract
- Increases fat excretion naturally
- Most effective when consumed with meals
Body Fat Reduction for Elevated BMI
Clinical evidence:
- Dual-action approach blocks new fat while activating liver metabolism
- Measurable improvements in body composition after 12 weeks
- Cumulative fat reduction effects with continuous use
The Science
Research & Evidence
What science and market data tell us about this oi ocha green tea for weight loss.
Government-Registered Functional Claims—Registered with Japan's Consumer Affairs Agency as Food with Function Claims (H49). Official claim confirms galloylated catechins reduce body fat and improve BMI by suppressing dietary fat absorption.
Market Leadership Validation—No.1 sales in functional food beverage market for 5 consecutive years (2020-2024) according to Intage SRI+ market research data. Demonstrates Japanese consumer trust.
A Note on Evidence: We present research on ingredients, not specific product claims. Individual results may vary. This supplement is not intended to diagnose, treat, cure, or prevent any disease.
Ingredient Research Highlights
GALLOYLATED CATECHINS
Catechins are polyphenols found naturally in green tea. Galloylated catechins specifically inhibit fat absorption by blocking pancreatic lipase activity, reducing body fat accumulation over time.
Functional food registration H49FAT ABSORPTION MECHANISM
Dietary fats require pancreatic lipase to be broken down. When galloylated catechins block this enzyme, fats pass through without being absorbed, leading to increased fat excretion.
Consumer Affairs Agency registrationCONSUMER VALIDATION
Ito En's catechin products have achieved cumulative sales of over 1.9 billion units globally. The company has been cultivating tea in Japan for over 48 years with 95% of facilities holding international certifications.
Ito En official company dataThe Story
About Brand Story
ITO EN, LTD.
Our dedication begins in the fields, guided by certified tea masters who rigorously oversee cultivation. By prioritizing safety and sustainability alongside tradition, ITO EN delivers a refreshing, healthy experience backed by unrivaled expertise and craftsmanship.
Our Curation Process
Why We Selected This Product
Every product at Naturacare undergoes rigorous evaluation before joining our collection.
機能性
Functional Evidence
Government-registered functional claims (H49) backed by clinical evidence. Foods with Function Claims require substantial scientific data demonstrating safety and efficacy.
信頼性
Brand Trust
From Ito En, Japan's leading tea company with over 48 years of heritage. Their tea farming cultivation program ensures consistent quality with 95% of facilities holding international certifications.
実績
Proven Track Record
No.1 functional food beverage in Japan for 5 consecutive years, with over 1.9 billion catechin product units sold. Market success reflects genuine consumer trust.
Our Promise: We don't just import popular Japanese supplements - we investigate each product's formulation, manufacturing standards, and real-world reputation in Japan.
This product earned its place in our collection because it represents the best of Japanese functional food innovation - government-registered claims, premium domestic ingredients, and a heritage brand trusted by millions of Japanese consumers daily.
Why Japan
The Japanese Advantage
Japan's supplement industry operates under some of the world's strictest quality standards. Combined with a cultural dedication to craftsmanship and centuries of wellness traditions, Japanese supplements represent a level of quality that's difficult to find elsewhere.
Rigorous Quality Standards
Japanese regulations require comprehensive testing at every stage of production, with standards that often exceed international requirements.
GMP-Certified Manufacturing
All our products come from facilities that meet Japan's strict GMP (Good Manufacturing Practice) certification requirements.
Centuries of Tradition
Many Japanese supplements draw on ingredients and formulations refined over generations, combining ancient wisdom with modern science.
Transparent Sourcing
Japanese manufacturers maintain complete traceability, so you know exactly where every ingredient comes from.
Directions
How to Use
Simple daily routine for optimal body fat reduction results.
Consume three times daily (total 7.2g) with meals for optimal fat absorption inhibition during digestion.
Consistent daily intake over 12 weeks is recommended for visible body fat reduction results.
Tips for Best Results
- Drink with meals to maximize fat absorption inhibition during digestion
- Works equally well with hot or cold water—adjust to your preference
- The rich, astringent flavor can be adjusted by using more or less water
- Store in a cool, dry place and reseal the zipper pouch after each use
- Do not exceed the recommended daily intake of 7.2g (3 tablespoons)
- For best results, maintain consistent daily use for at least 12 weeks
What's Inside
Ingredients
Simple, clean formulation with functional catechins from premium Japanese tea.
Galloylated Catechins
Functional component that reduces body fat per 7.2g serving
Total Catechins
All catechin types combined per 7.2g serving
Caffeine
Natural energy from tea leaves per 7.2g serving
Ingredients: Green tea (Japan), Matcha (Japan), Dextrin, Vitamin C
Allergen Information: Contains: None. Free from: All 28 specified allergens including wheat, milk, eggs, peanuts, shrimp, crab, buckwheat, and soy.
Important Information
Safety & Precautions
Please read before use.
Allergies
This product contains no specified allergens. Free from all 28 allergens designated by Japanese food labeling law, including gluten, dairy, soy, and nuts.
Pregnancy & Nursing
Contains 154.1mg caffeine per 7.2g serving. Pregnant or nursing women should consult a physician before use due to caffeine content.
Children
Not suitable for children. This product is intended for adult consumption only.
Caffeine Sensitivity
Contains caffeine similar to one cup of coffee per serving. Individuals sensitive to caffeine should monitor intake. Avoid consuming in the evening if you experience sleep disturbances.
Dosage
Do not exceed the recommended daily intake of 7.2g (equivalent to 340mg galloylated catechins). Excessive consumption does not provide greater health benefits.
Discontinue Use
If you experience any adverse effects, discontinue use immediately and consult a physician.
Disclaimer
This is a Food with Function Claims, not a government-approved FOSHU. Results may vary. Maintain a balanced diet with proper portions.
Storage
Store in a cool, dry place away from direct sunlight and high humidity. Reseal zipper after opening to preserve freshness.
Details
Product Specifications
Questions
Frequently Asked Questions
Unlike regular green tea, this functional food has government-registered claims backed by scientific evidence demonstrating fat absorption inhibition.
Regular green tea lacks standardized catechin levels and government-recognized functional claims for body fat reduction.
While not individually reviewed like FOSHU products, registration requires substantial clinical data demonstrating safety and efficacy under regulatory standards.
Individual results may vary based on diet, exercise, and baseline BMI levels. Continuous intake is essential for optimal benefits.
Consider reducing serving frequency or choosing decaffeinated alternatives if advised by your physician.
Free from all 28 specified allergens including gluten, dairy, soy, and nuts. No artificial colors, flavors, or preservatives added.
Consume three times daily with meals for maximum fat absorption inhibition. Works equally well hot or iced throughout the day.
This product supports weight management as part of a comprehensive wellness approach, not as a standalone solution.
Follow recommended dosage and maintain a balanced diet. Consult a physician if concerns arise.
Be cautious of third-party sellers who may not maintain proper handling conditions for functional food products.