Does Matcha Really Help with Weight Loss?

By the Origin Leaf Japan team | Reviewed by Yasuhiro Odajima, Chief Matcha Officer | Last updated: October 2026

Note: This article is for general information only and is not medical advice. If you have a health condition, are pregnant, or take medication, consult a qualified healthcare professional.

Short answer: Not in any meaningful way on its own. A Cochrane systematic review of randomized trials in overweight and obese adults found that green tea preparations produced only a small, statistically non-significant weight loss that was unlikely to be clinically important. Matcha can be a satisfying, low-calorie drink when taken without sugar, which can help as part of an overall healthy diet, but it is not a fat burner.

Key takeaways

• The Cochrane review found negligible average weight loss from green tea in studies outside Japan.
• Some studies in Japan showed larger losses, but they could not be pooled and differed in design.
• Caffeine and catechins may slightly raise energy expenditure, but the effect is small.
• A sweetened matcha latte can contain more calories than people expect.
• Diet quality, overall calories, activity and sleep matter far more.

Where the weight loss claims come from

Green tea catechins, especially EGCG, and caffeine have been studied for their effects on metabolism and fat oxidation. Some short-term laboratory studies found small increases in energy expenditure. These findings were widely publicized and turned green tea, and later matcha, into a popular "metabolism booster."

What the best evidence says

The Cochrane review "Green tea for weight loss and weight maintenance in overweight or obese adults" analyzed randomized controlled trials lasting around 12 weeks. In studies conducted outside Japan, the average difference in weight loss between green tea and control groups was close to zero. Studies conducted in Japan reported losses ranging from 0.2 to 3.5 kg but were too different to combine. The authors concluded that green tea preparations produce a small, statistically non-significant weight loss unlikely to be clinically important, and no significant effect on maintaining weight loss.

Why your matcha latte might work against you

Plain matcha whisked with water has only a few calories. A large sweetened matcha latte made with whole milk and syrup can contain 200 to 300 calories or more. If weight is your goal, the milk and sugar matter far more than the matcha.

How matcha can fit into a healthy routine

• Replace a sugary drink with unsweetened matcha.
• Use high-quality matcha that tastes good without much sweetener.
• Choose lower-calorie milk or reduce syrup in lattes.
• Focus on overall diet, activity and sleep.

Safety note on supplements

Concentrated green tea extract supplements marketed for weight loss can deliver far more EGCG than food. The European Food Safety Authority has concluded that EGCG intakes of 800 mg per day or more from supplements may be associated with liver stress. Drinking matcha in normal amounts is different from taking high-dose extracts.

Frequently asked questions

Q: Does matcha boost metabolism?

A: Caffeine and catechins may slightly increase energy expenditure, but the effect on body weight appears small.

Q: Is matcha better than coffee for weight loss?

A: There is no strong evidence that either causes meaningful weight loss on its own. What you add to the cup matters most.

Q: How much matcha should I drink for weight loss?

A: Matcha is not a weight-loss treatment. Enjoy it as part of a balanced diet, ideally unsweetened.

Related reading: 28. What Happens When You Drink Matcha Every Day?; 26. Matcha vs. Coffee: Which One Is Better for You?; 36. The Café Matcha Latte Playbook: Dosing, Milk Pairing and Cost per Cup

Sources and further reading: Jurgens T.M. et al., "Green tea for weight loss and weight maintenance in overweight or obese adults," Cochrane Database of Systematic Reviews (CD008650); European Food Safety Authority, scientific opinion on green tea catechins (2018).

Serving matcha in your café or building a matcha brand? Origin Leaf Japan supplies first-flush, single-origin matcha from Suzuka, Mie, to cafés, retailers, distributors and food manufacturers, milled to order with a 5 kg minimum, 1 kg packs, and delivery in as little as 10 days. Request a quote or samples →