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Study

Matcha Tea: Potential Help with Weight Loss for Overweight and Obese Adults

Matcha tea may aid in weight loss and have anti-inflammatory benefits when combined with a low-calorie diet.

Study Credibility: Low2.5/10Early findingsNot enough evidence yetTalk with your clinician
PublishedOct 2026Last reviewedOct 2026
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Summary

In plain language

In a recent study, researchers explored the effects of matcha tea on overweight and obese adults who were following a low-calorie diet plan. The study found that participants who drank matcha tea daily showed potential benefits in weight loss and a reduction in certain inflammatory markers. Although both the matcha tea group and the control group, who only followed the diet, lost weight, the matcha tea group also showed slight improvements in cholesterol levels and inflammation-related hormone levels. These findings suggest that adding matcha tea to a healthy diet might offer additional benefits for weight management and health.

Details

Use the full description to understand the study design, methods, and the limits of the findings.

This study was a 12-week trial involving 40 overweight and obese individuals. Participants were divided into two groups: one group drank matcha tea daily while following a low-calorie diet, and the other group only followed the diet. Researchers measured various health indicators, including body weight, cholesterol, and inflammatory markers.

  • The matcha tea group showed similar weight loss to the control group but had potential improvements in cholesterol levels and inflammatory markers.

  • No significant adverse effects were reported from matcha tea consumption.

  • While promising, the study was small and not randomized, meaning more research is needed to confirm these findings.

Seniors interested in trying matcha tea for weight management should discuss it with their healthcare provider, especially if they have any existing health conditions or are taking medications.

Research Quality Score

Scored October 21, 2026 using rubric mq-1.8_2026-07-06.

Assessment

The study is a non-randomized observational pilot, limiting its design score. Lack of randomization and blinding affects bias control. Statistical methods are standard but lack power analysis. Transparency is low due to missing protocol and data sharing. No COI statement was detected, impacting conflicts score. The study is relevant to the target population but lacks replication and journal quality information.

Category Breakdown

CategoryScoreRating
Study design3.3/10
Bias control0.0/10
Statistical methods5.0/10
Reporting completeness0.0/10
Conflicts & funding0.0/10
Replication0.0/10
Relevance to chosen population10.0/10
Journal Reliability5.0/10

Additional Notes

This pilot observational study evaluates the effects of matcha tea on weight loss and metabolic markers in overweight and obese adults. Participants followed a low-calorie diet with or without matcha tea for 12 weeks. The study found potential benefits of matcha tea on weight loss and anti-inflammatory markers.

Assessed on the study's full text across 8 quality dimensions; conflict-of-interest disclosures were reviewed.

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