MatchaDB

Research

The Global Matcha Research Library

641 papers, trials, theses and preprints that study matcha, gathered from PubMed, OpenAlex and Europe PMC, tagged by study type and topic, and linked back to every source. We keep abstracts and citations; the full text stays with its publisher.

Tip: use "quotes" for an exact phrase, OR between alternatives, and a minus to leave a word out, for example fluoride OR pesticide. Related words are matched too, so “EGCG” also finds “epigallocatechin.”

140 studies match for “Anxiety”

2021Journal articleFree to read

Influence of Continuous Ingestion of Matcha Latte on Stress: A Preliminary Study

Manami Monobe, Sachiko Nomura, Kaori Ema — Chagyo Kenkyu Hokoku (Tea Research Journal)

カフェイン+EGCG/テアニン+アルギニンのモル比が2未満の高級抹茶を継続摂取するとストレッサーによる侵襲を受けにくいことが既に報告されている。一方,カフェイン+EGCG/テアニン+アルギニンのモル比が2以上の抹茶ではストレッサーによる侵襲を受けてしまうことが本研究でも明らかになった。しかし本研究では,上記モル比が2以上の抹茶ラテを飲用していた場合,不安状態における交感神経系を介したストレス防御反応の低下を抑える可能性があることが示された。

Other / not statedCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeine
2024Journal articleFree to read

Effect of matcha green tea on cognitive functions and sleep quality in older adults with cognitive decline: A randomized controlled study over 12 months.

Uchida K, Meno K, Korenaga T, et al. — PloS one

Objective: Lifestyle habits after middle age significantly impact the maintenance of cognitive function in older adults. Nutritional intake is closely related to lifestyle habits; therefore, nutrition is a pivotal factor in the prevention…

Randomized controlled trialCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 25×
2020Journal articleFree to read

Health Benefits and Chemical Composition of Matcha Green Tea: A Review.

Kochman J, Jakubczyk K, Antoniewicz J, et al. — Molecules (Basel, Switzerland)

Japanese matcha is a type of powdered green tea, grown in a traditional way. Shading of the plants during the growth period enhances the processes of synthesis and accumulation of biologically active compounds, including theanine,…

ReviewCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 321×
2024Journal articleFree to read

Green Packaging Films with Antioxidant Activity Based on Pectin and Camellia sinensis Leaf Extract.

Dobrucka R, Pawlik M, Szymański M — Molecules (Basel, Switzerland)

In the packaging materials sector, increasing globalization has created the need for increased efforts to develop consumer protection measures. Consequently, new packaging materials are being sought to replace petroleum-based materials in…

Observational (human)Antioxidants and polyphenolsCognition, mood and stressFood products and applicationsCited 23×
2024Journal articleFree to read

Matcha Does Not Affect Electroencephalography during Sleep but May Enhance Mental Well-Being: A Randomized Placebo-Controlled Clinical Trial.

Baba Y, Takihara T, Okamura N — Nutrients

Although theanine in matcha improves sleep quality and cognitive function, the caffeine in green tea is thought to worsen sleep quality. Therefore, this study investigated the factors behind the observed improvements in subjective sleep…

Randomized controlled trialCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 8×
2020Journal articleFree to read

Effects of Matcha Green Tea Powder on Cognitive Functions of Community-Dwelling Elderly Individuals.

Sakurai K, Shen C, Ezaki Y, et al. — Nutrients

Matcha Green Tea Powder contains a variety of active ingredients beneficial to health, such as tea catechins, lutein and vitamin K. It is also known that these ingredients confer benefits upon cognitive functions of elderly people.…

Randomized controlled trialCognition, mood and stressAntioxidants and polyphenolsProcessing, milling and qualityCited 46×
2021Journal articleFree to read

The science of matcha: Bioactive compounds, analytical techniques and biological properties

Hari Prasad Devkota, Bhakta Prasad Gaire, Kengo Hori, et al. — Trends in Food Science & Technology

The interest in the plant-derived healthy foods, nutraceuticals, functional foods and food supplements is increasing in recent times as potential agents in maintenance of health and the prevention and treatment of diseases. Matcha tea…

ReviewAntioxidants and polyphenolsL-theanine and caffeineProcessing, milling and qualityCited 61×
2023Journal articleFree to read

The therapeutic potential of matcha tea: A critical review on human and animal studies.

Sokary S, Al-Asmakh M, Zakaria Z, et al. — Current research in food science

… To date, randomized clinical trials (RCT) showed that matcha decreases stress, slightly enhances attention and memory, and has no effect on mood. Results regarding the effect of matcha on cognitive function are contradictory and …

ReviewCognition, mood and stressMetabolism and weightCardiovascular and blood pressureCited 49×
2026Journal articleFree to read

FROM CAFFEINE TO CATECHINS: A NARRATIVE REVIEW OF THE COMPARATIVE AND SYNERGISTIC EFFECTS OF COFFEE AND MATCHA ON HUMAN HEALTH

Małgorzata Cherek, Natalia Marzec, Natalia Krupa, et al. — International Journal of Innovative Technologies in Social Science

This review compares the effects and benefits of consuming two of the most popular hot beverages: matcha tea and coffee. Both of them have been consumed for centuries and are embedded in cultural, societal, and dietary practices worldwide.…

Systematic review / meta-analysisCognition, mood and stressMetabolism and weightAntioxidants and polyphenols
2026Journal articleFree to read

Matcha as a Source of Bioactive Compounds: A Review of Health-Promoting Properties and Potential Applications.

Sławińska P, Raczkowska E — Nutrients

Matcha, a finely milled powdered green tea originating from Japan, is characterized by a unique cultivation method in which tea plants are shaded prior to harvest. This practice enhances the accumulation of chlorophyll, caffeine,…

ReviewCognition, mood and stressMetabolism and weightAntioxidants and polyphenolsCited 2×
2024Journal article

Comparative study of the anti-inflammatory activity of etoricoxib and Matcha green tea against acute kidney injury induced by gamma radiation in rats.

Khateeb S, Taha EFS — International journal of radiation biology

… function was assessed through serum creatinine and urea levels. Oxidative stress markers, including superoxide dismutase, glutathione, malondialdehyde, and catalase, were measured to evaluate the antioxidant effects of ETO and MG. …

Animal studyCognition, mood and stressAntioxidants and polyphenolsGut and microbiomeCited 8×
2024Journal articleFree to read

Multimodal inhibitory effect of matcha on Porphyromonas gingivalis.

Nakao R, Takatsuka A, Mandokoro K, et al. — Microbiology spectrum

ABSTRACT Porphyromonas gingivalis has been associated with progression of periodontitis, characterized by inflammation and destruction of periodontal tissues. Here, we report that matcha, a product of Camellia sinensis , hampers the…

Clinical trial (non-randomized)Antioxidants and polyphenolsSkin, oral and dentalCognition, mood and stressCited 10×
2021Journal articleFree to read

Powdered Green Tea (Matcha) Attenuates the Cognitive Dysfunction via the Regulation of Systemic Inflammation in Chronic PM2.5-Exposed BALB/c Mice.

Kim JM, Kang JY, Park SK, et al. — Antioxidants (Basel, Switzerland)

This study was conducted to evaluate the anti-amnesic effect of the aqueous extract of powdered green tea (matcha) (EM) in particulate matter (PM)2.5-induced systemic inflammation in BALB/c mice. EM ameliorated spatial learning and memory…

Animal studyCognition, mood and stressAntioxidants and polyphenolsCancerCited 34×
2023Journal article

Matcha-silver nanoparticles reduce gamma radiation-induced oxidative and inflammatory responses by activating SIRT1 and NLRP-3 signaling pathways in the Wistar rat spleen.

Hamed NS, Taha EFS, Khateeb S — Cell biochemistry and function

… (M‐AgNPs) to reduce inflammation associated with γ‐radiation induced‐oxidative stress and inflammation in rats' spleen. Silver nanoparticles (AgNPs) were synthesized by biogenic synthesis using a green sonochemical method from matcha (M) …

Animal studyCognition, mood and stressAntioxidants and polyphenolsInflammation and immunityCited 11×
2017Journal articleFree to read

An intervention study on the effect of matcha tea, in drink and snack bar formats, on mood and cognitive performance.

Dietz C, Dekker M, Piqueras-Fiszman B — Food research international (Ottawa, Ont.)

Matcha tea is gaining popularity throughout the world in recent years and is frequently referred to as a mood-and-brain food. Previous research has demonstrated that three constituents present in matcha tea, l-theanine, epigallocatechin…

Randomized controlled trialCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 66×
2024Journal articleFree to read

Matcha alleviates obesity by modulating gut microbiota and its metabolites.

Luo Y, Wen Y, Huang J, et al. — Current research in food science

Matcha shows promise for diabetes, obesity, and gut microbiota disorders. Studies suggest a significant link between gut microbiota, metabolites, and obesity. Thus, matcha may have a positive impact on obesity by modulating gut microbiota…

Animal studyCognition, mood and stressMetabolism and weightL-theanine and caffeineCited 18×
2026Journal articleFree to read

From coffee to matcha: decoding the multidimensional competence of matcha as a sustainable and health-promoting coffee substitute.

Hu H, Zhang H, Liu Z, et al. — Journal of the science of food and agriculture

This review provides a comprehensive analysis of the bioactive compounds, health benefits, and production processes of two globally popular stimulant beverages: coffee and matcha. Both beverages are rich in bioactive compounds such as…

ReviewCognition, mood and stressAntioxidants and polyphenolsL-theanine and caffeineCited 1×
2022Journal articleFree to read

Prospective Medicinal Plants and Their Phytochemicals Shielding Autoimmune and Cancer Patients Against the SARS-CoV-2 Pandemic: A Special Focus on Matcha.

Kiriacos CJ, Khedr MR, Tadros M, et al. — Frontiers in oncology

Background: Being "positive" has been one of the most frustrating words anyone could hear since the end of 2019. This word had been overused globally due to the high infectious nature of SARS-CoV-2. All citizens are at risk of being…

ReviewAntioxidants and polyphenolsCancerInflammation and immunityCited 10×
2020Journal article

Oxidative stability of spray dried matcha-tuna oil powders.

Shi M, Ying D, Hlaing MM, et al. — Food research international (Ottawa, Ont.)

Matcha-tuna oil and matcha-maltodextrin-tuna oil emulsions (25% oil, dry basis), formulated to have protein: carbohydrate ratios of 1:1.1, 1:2, 1:3 and 1:4, were spray dried. Confocal laser scanning microscopy showed effective…

Food science / processingAntioxidants and polyphenolsProcessing, milling and qualityCognition, mood and stressCited 31×

How this library is built

Every record comes from three open scholarly indexes — PubMed, OpenAlex and Europe PMC — searched for the word “matcha.” Records are merged by DOI and PubMed ID so each study appears once. A paper is kept only if matcha appears in its title, abstract, author keywords or subject terms and the text is about tea or food, which filters out the surname Matcha, software called Matcha, and the Scandinavian verb “matcha” (to match).

Study type and topic tags are assigned automatically from each paper's own title, abstract and subject terms using fixed keyword rules — no guesses, and papers without an abstract are marked as unclassified. Automatic tagging is imperfect, so treat tags as a way to narrow a search, not as a verdict on a paper's quality. A study being listed here is not an endorsement of its findings.

Coverage: this is every indexed paper that names matcha, not every study of green tea or its compounds (those are far more numerous). Papers that mention matcha only in passing are hidden by default. Work that never uses the word “matcha,” and publications outside these indexes, are not included. The library was last rebuilt October 20, 2026.

Spot a paper that doesn't belong, or one that's missing? Tell us.