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Strong Evidence🔥

Best Green Tea Extract (EGCG) for Weight Loss & Metabolism in Australia

Green tea extract is rich in catechins, particularly epigallocatechin gallate (EGCG), which has been extensively studied for its thermogenic and fat-oxidation effects. Multiple meta-analyses confirm modest but consistent effects on weight loss and metabolic rate, especially when combined with caffeine. Compare prices across Australian retailers and find the best value.

Full Green Tea Extract (EGCG) profile — evidence, interactions & all conditions

Quick Summary

Dosage

500-1000 mg/day

Time to Effect

8-12 weeks

From

$0.07/serve

Evidence

strong (4/5)

Timing: Take with breakfast or before exercise. The caffeine content means avoiding evening doses. Take with food to reduce nausea. Look for products standardised to 50%+ EGCG.

How Does Green Tea Extract (EGCG) Help with Weight Loss & Metabolism?

EGCG inhibits catechol-O-methyltransferase (COMT), the enzyme that breaks down norepinephrine. This prolongs norepinephrine signalling, increasing thermogenesis (heat production) and fat oxidation. EGCG also activates AMPK, promoting glucose uptake into muscle cells and reducing fat storage. The caffeine content provides additional thermogenic effects via phosphodiesterase inhibition.

Meta-analyses show green tea extract increases 24-hour energy expenditure by 80-100 kcal/day and fat oxidation by 16-17%. A Cochrane review of 14 RCTs found mean weight loss of 1.3kg over 12 weeks vs placebo. Most effective in those with low habitual caffeine intake. Choose decaffeinated extracts if sensitive to stimulants.

Best Prices in Australia

Green Tea Extract Powder (50% EGCG)

BulkSupplementsviaBulkSupplements

500mg per serve · 500 serves · powder

$0.07/serve

$32.96 total

Buy
2

EGCg Green Tea Extract 400mg

Now FoodsviaiHerb

400mg EGCG per serve · 180 serves · capsule

$0.17/serve

$29.99 total

Buy
3

Green Tea 500mg

Jarrow FormulasviaiHerb

500mg extract (50% EGCG) per serve · 100 serves · capsule

$0.19/serve

$19.49 total

Buy
4

Mega Green Tea Extract (decaf)

Life ExtensionviaLife Extension

725mg (45% EGCG) per serve · 100 serves · capsule

$0.35/serve

$34.50 total

Buy
5

Green Tea Phytosome

ThorneviaThorne

250mg EGCG phytosome per serve · 60 serves · capsule

$0.87/serve

$52.00 total

Buy

Interactions to Watch

  • Warfarinmoderate— Green tea extract may reduce the effectiveness of warfarin by providing vitamin K.
  • Nadolol (beta-blockers)moderate— EGCG can reduce absorption of nadolol by up to 85%.
  • MAO inhibitorsmoderate— The caffeine in green tea extract may interact with MAOIs, potentially causing dangerous increases in blood pressure.
  • Liver conditionsmajor— High-dose green tea extract (>800mg EGCG/day) has rare but documented cases of hepatotoxicity.
Check all interactions

Other Supplements for Weight Loss & Metabolism

Berberine

strong evidence

Glucomannan

strong evidence

Chromium

moderate evidence

CLA (Conjugated Linoleic Acid)

moderate evidence

View complete Weight Loss & Metabolism supplement guide

Frequently Asked Questions

How much Green Tea Extract (EGCG) should I take for weight loss & metabolism?
The recommended dose of Green Tea Extract (EGCG) for weight loss & metabolism is 500-1000 mg per day. Meta-analyses show green tea extract increases 24-hour energy expenditure by 80-100 kcal/day and fat oxidation by 16-17%. A Cochrane review of 14 RCTs found mean weight loss of 1.3kg over 12 weeks vs placebo. Most effective in those with low habitual caffeine intake. Choose decaffeinated extracts if sensitive to stimulants. Always consult a healthcare professional before starting supplementation.
When is the best time to take Green Tea Extract (EGCG) for weight loss & metabolism?
Take with breakfast or before exercise. The caffeine content means avoiding evening doses. Take with food to reduce nausea. Look for products standardised to 50%+ EGCG.. Consistency matters more than exact timing — take it at the same time each day for best results.
How long does Green Tea Extract (EGCG) take to work for weight loss & metabolism?
Most people notice effects within 8-12 weeks. Individual results vary depending on baseline levels, dosage, and overall health. Consistent daily use is important — don't expect overnight results.
What form of Green Tea Extract (EGCG) is best for weight loss & metabolism?
Green Tea Extract (EGCG) is available as capsule, tablet, powder. Powder forms often offer the best value per serve and can be mixed into drinks.
Where can I buy Green Tea Extract (EGCG) for weight loss & metabolism in Australia?
You can buy Green Tea Extract (EGCG) from BulkSupplements, iHerb, Life Extension, Thorne in Australia. The best value we found is Green Tea Extract Powder (50% EGCG) at $0.07 per serve from BulkSupplements.
Is Green Tea Extract (EGCG) safe? Are there any interactions?
Green Tea Extract (EGCG) is generally considered safe at recommended doses. However, it can interact with Warfarin, Nadolol (beta-blockers), MAO inhibitors and 1 other substance. Always check with your doctor if you take medications, especially before combining supplements.

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This information is for educational purposes only and is not medical advice. Consult a healthcare professional before starting any supplement regimen. SuppUp earns affiliate commissions from qualifying purchases — this does not affect our recommendations.