It is well established that chronic oxidative stress can drive systemic inflammation, contributing to the development of conditions such as asthma, type 2 diabetes, metabolic syndrome, cardiovascular disease, and osteoarthritis. Black tea is recognised for its bioactive anti-inflammatory properties, largely due to its diverse profile of bioactive compounds, including theaflavins, thearubigins, catechins, L-theanine, and quercetin. The present narrative review examined evidence from 11 meta-analyses, systematic/umbrella reviews, and 11 randomised controlled trials (n = 22 studies) published over the past 20 years, focusing specifically on black tea (with or without milk) and systemic inflammation. Most studies administered black tea intake at levels equivalent to 3 - 4 cups per day. Overall, black tea appears to exert anti-inflammatory and antioxidant effects, particularly in individuals with elevated baseline inflammation. These effects were most evident in longer-duration trials and those targeting populations with existing inflammatory conditions. Given the recognised role of diet in modulating inflammation, incorporating black tea and its array of bioactive compounds into daily routines may have public health relevance. Future research should prioritise longer and larger trials that reflect typical consumption patterns and expand the range of health outcomes assessed.
Alderton, G. and Scanlon, S.T. (2021) Inflammation: An Expanding View. Science , 374, 1068-1069. https://doi.org/10.1126/science.abn1721
Soták, M., Clark, M., Suur, B.E. and Börgeson, E. (2024) Inflammation and Resolution in Obesity. Nature Reviews Endocrinology , 21, 45-61. https://doi.org/10.1038/s41574-024-01047-y
Remick, D.G. (2014) Systemic Inflammation. In: McManus, L.M. and Mitchell, R.N., Eds., Pathobiology of Human Disease , Elsevier, 315-322. https://doi.org/10.1016/b978-0-12-386456-7.01809-8
Kolb, H. (2022) Obese Visceral Fat Tissue Inflammation: From Protective to Detrimental? BMC Medicine , 20, Article No. 494. https://doi.org/10.1186/s12916-022-02672-y
Nygaard, U.C., Xiao, L., Nadeau, K.C., Hew, K.M., Lv, N., Camargo, C.A., et al. (2021) Improved Diet Quality Is Associated with Decreased Concentrations of Inflammatory Markers in Adults with Uncontrolled Asthma. The American Journal of Clinical Nutrition , 114, 1012-1027. https://doi.org/10.1093/ajcn/nqab063
Miller, R.L., Grayson, M.H. and Strothman, K. (2021) Advances in Asthma: New Understandings of Asthma’s Natural History, Risk Factors, Underlying Mechanisms, and Clinical Management. Journal of Allergy and Clinical Immunology , 148, 1430-1441. https://doi.org/10.1016/j.jaci.2021.10.001
Fahy, J.V. (2014) Type 2 Inflammation in Asthma—Present in Most, Absent in Many. Nature Reviews Immunology , 15, 57-65. https://doi.org/10.1038/nri3786
Koliaki, C., Dalamaga, M. and Liatis, S. (2023) Update on the Obesity Epidemic: After the Sudden Rise, Is the Upward Trajectory Beginning to Flatten? Current Obesity Reports , 12, 514-527. https://doi.org/10.1007/s13679-023-00527-y
Rochlani, Y., Pothineni, N.V., Kovelamudi, S. and Mehta, J.L. (2017) Metabolic Syndrome: Pathophysiology, Management, and Modulation by Natural Compounds. Therapeutic Advances in Cardiovascular Disease , 11, 215-225. https://doi.org/10.1177/1753944717711379
Bellocchi, C., Carandina, A., Montinaro, B., Targetti, E., Furlan, L., Rodrigues, G.D., et al. (2022) The Interplay between Autonomic Nervous System and Inflammation across Systemic Autoimmune Diseases. International Journal of Molecular Sciences , 23, Article 2449. https://doi.org/10.3390/ijms23052449
Ly, M., Yu, G.Z., Mian, A., Cramer, A., Meysami, S., Merrill, D.A., et al. (2023) Neuroinflammation: A Modifiable Pathway Linking Obesity, Alzheimer’s Disease, and Depression. The American Journal of Geriatric Psychiatry , 31, 853-866. https://doi.org/10.1016/j.jagp.2023.06.001
Carrizales-Sepúlveda, E.F., Ordaz-Farías, A., Vera-Pineda, R. and Flores-Ramírez, R. (2018) Periodontal Disease, Systemic Inflammation and the Risk of Cardiovascular Disease. Heart , Lung and Circulation , 27, 1327-1334. https://doi.org/10.1016/j.hlc.2018.05.102
Hackney, A.J., Klinedinst, N.J., Resnick, B. and Johantgen, M. (2019) Association of Systemic Inflammation and Fatigue in Osteoarthritis: 2007-2010 National Health and Nutrition Examination Survey. Biological Research for Nursing , 21, 532-543. https://doi.org/10.1177/1099800419859091
Christ, A., Lauterbach, M. and Latz, E. (2019) Western Diet and the Immune System: An Inflammatory Connection. Immunity , 51, 794-811. https://doi.org/10.1016/j.immuni.2019.09.020
Malesza, I.J., Malesza, M., Walkowiak, J., Mussin, N., Walkowiak, D., Aringazina, R., et al. (2021) High-Fat, Western-Style Diet, Systemic Inflammation, and Gut Microbiota: A Narrative Review. Cells , 10, Article 3164. https://doi.org/10.3390/cells10113164
Grosso, G., Laudisio, D., Frias-Toral, E., Barrea, L., Muscogiuri, G., Savastano, S., et al. (2022) Anti-Inflammatory Nutrients and Obesity-Associated Metabolic-Inflammation: State of the Art and Future Direction. Nutrients , 14, Article 1137. https://doi.org/10.3390/nu14061137
Jomova, K., Alomar, S.Y., Valko, R., Liska, J., Nepovimova, E., Kuca, K., et al. (2025) Flavonoids and Their Role in Oxidative Stress, Inflammation, and Human Diseases. Chemico - Biological Interactions , 413, Article ID: 111489. https://doi.org/10.1016/j.cbi.2025.111489
Luvián-Morales, J., Varela-Castillo, F.O., Flores-Cisneros, L., Cetina-Pérez, L. and Castro-Eguiluz, D. (2021) Functional Foods Modulating Inflammation and Metabolism in Chronic Diseases: A Systematic Review. Critical Reviews in Food Science and Nutrition , 62, 4371-4392. https://doi.org/10.1080/10408398.2021.1875189
Dou, Q.P. (2019) Tea in Health and Disease. Nutrients , 11, Article 929. https://doi.org/10.3390/nu11040929
Wang, J. (2019) A Brief History of Chinese Tea and Its Spreading. Sciences of Conservation and Archaeology , 31, 140-146.
Abudureheman, B., Yu, X., Fang, D. and Zhang, H. (2022) Enzymatic Oxidation of Tea Catechins and Its Mechanism. Molecules , 27, Article 942. https://doi.org/10.3390/molecules27030942
Li, S., Lo, C., Pan, M., Lai, C. and Ho, C. (2013) Black Tea: Chemical Analysis and Stability. Food & Function , 4, 10-18. https://doi.org/10.1039/c2fo30093a
Hoensch, H. and Oertel, R. (2012) Anti-inflammatorische Wirkungen der Tee-Flavonoide. DMW — Deutsche Medizinische Wochenschrift , 137, 2738-2740. https://doi.org/10.1055/s-0032-1327348
Yahfoufi, N., Alsadi, N., Jambi, M. and Matar, C. (2018) The Immunomodulatory and Anti-Inflammatory Role of Polyphenols. Nutrients , 10, Article 1618. https://doi.org/10.3390/nu10111618
Butt, M.S., Imran, A., Sharif, M.K., Ahmad, R.S., Xiao, H., Imran, M., et al. (2014) Black Tea Polyphenols: A Mechanistic Treatise. Critical Reviews in Food Science and Nutrition , 54, 1002-1011. https://doi.org/10.1080/10408398.2011.623198
Wang, W., Le, T., Wang, W., Yu, L., Yang, L. and Jiang, H. (2023) Effects of Key Components on the Antioxidant Activity of Black Tea. Foods , 12, Article 3134. https://doi.org/10.3390/foods12163134
Bond, T. and Derbyshire, E. (2020) Black Tea Flavonoids: A Focus on Thearubigins and Their Potential Roles in Diet & Health. Nutrition and Food Technology : Open Access , 6, 1-8. https://doi.org/10.16966/2470-6086.168
Dludla, P.V., Nkambule, B.B., Jack, B., Mkandla, Z., Mutize, T., Silvestri, S., et al. (2018) Inflammation and Oxidative Stress in an Obese State and the Protective Effects of Gallic Acid. Nutrients , 11, Article 23. https://doi.org/10.3390/nu11010023
Calis, Z., Mogulkoc, R. and Baltaci, A.K. (2020) The Roles of Flavonols/Flavonoids in Neurodegeneration and Neuroinflammation. Mini-Reviews in Medicinal Chemistry , 20, 1475-1488. https://doi.org/10.2174/1389557519666190617150051
Shaik, Y.B., Castellani, M.L., Perrella, A., et al. (2006) Role of Quercetin (a Natural Herbal Compound) in Allergy and Inflammation. Journal of Biological Regulators and Homeostatic Agents , 20, 47-52.
Ren, J., Lu, Y., Qian, Y., Chen, B., Wu, T. and Ji, G. (2019) Recent Progress Regarding Kaempferol for the Treatment of Various Diseases (Review). Experimental and Therapeutic Medicine , 18, 2759-2776. https://doi.org/10.3892/etm.2019.7886
Keenan, E.K., Finnie, M.D.A., Jones, P.S., Rogers, P.J. and Priestley, C.M. (2011) How Much Theanine in a Cup of Tea? Effects of Tea Type and Method of Preparation. Food Chemistry , 125, 588-594. https://doi.org/10.1016/j.foodchem.2010.08.071
Li, Z., Huang, Z., Jia, G., Zhao, H., Liu, G. and Chen, X. (2024) L-Theanine Attenuates H 2 O 2 -Induced Inflammation and Apoptosis in IPEC-J2 Cells via Inhibiting P38 MAPK Signaling Pathway. Food and Chemical Toxicology , 186, Article ID: 114561. https://doi.org/10.1016/j.fct.2024.114561
Barcelos, R.P., Lima, F.D., Carvalho, N.R., Bresciani, G. and Royes, L.F. (2020) Caffeine Effects on Systemic Metabolism, Oxidative-Inflammatory Pathways, and Exercise Performance. Nutrition Research , 80, 1-17. https://doi.org/10.1016/j.nutres.2020.05.005
Saimaiti, A., Zhou, D., Li, J., Xiong, R., Gan, R., Huang, S., et al. (2022) Dietary Sources, Health Benefits, and Risks of Caffeine. Critical Reviews in Food Science and Nutrition , 63, 9648-9666. https://doi.org/10.1080/10408398.2022.2074362
Yilmaz, Y. (2025) Health-Promoting Effects of Black Tea: A Narrative Review of Clinical Trials. International Journal of Food Science , 2025, Article ID: 8560718. https://doi.org/10.1155/ijfo/8560718
Elgazzar, A.H. (2014) Inflammation. In: Elgazzar, A.H., Ed., Synopsis of Pathophysiology in Nuclear Medicine , Springer, 41-57. https://doi.org/10.1007/978-3-319-03458-4_4
Tylutka, A., Walas, Ł. and Zembron-Lacny, A. (2024) Level of IL-6, TNF, and IL-1 β and Age-Related Diseases: A Systematic Review and Meta-Analysis. Frontiers in Immunology , 15, Article 1330386. https://doi.org/10.3389/fimmu.2024.1330386
van de Vyver, M. (2023) Immunology of Chronic Low-Grade Inflammation: Relationship with Metabolic Function. Journal of Endocrinology , 257, e220271. https://doi.org/10.1530/joe-22-0271
Liberati, A., Altman, D.G., Tetzlaff, J., Mulrow, C., Gøtzsche, P.C., Ioannidis, J.P.A., et al. (2009) The PRISMA Statement for Reporting Systematic Reviews and Meta-Analyses of Studies That Evaluate Health Care Interventions: Explanation and Elaboration. PLOS Medicine , 6, e1000100. https://doi.org/10.1371/journal.pmed.1000100
Long, Z., Xiang, W., He, Q., Xiao, W., Wei, H., Li, H., et al. (2023) Efficacy and Safety of Dietary Polyphenols in Rheumatoid Arthritis: A Systematic Review and Meta-Analysis of 47 Randomized Controlled Trials. Frontiers in Immunology , 14, Article 1024120. https://doi.org/10.3389/fimmu.2023.1024120
Huang, Y., Xing, K., Qiu, L., Wu, Q. and Wei, H. (2021) Therapeutic Implications of Functional Tea Ingredients for Ameliorating Inflammatory Bowel Disease: A Focused Review. Critical Reviews in Food Science and Nutrition , 62, 5307-5321. https://doi.org/10.1080/10408398.2021.1884532
Rothenberg, D.O. and Zhang, L. (2019) Mechanisms Underlying the Anti-Depressive Effects of Regular Tea Consumption. Nutrients , 11, Article 1361. https://doi.org/10.3390/nu11061361
Liu, W., Wan, C., Huang, Y. and Li, M. (2020) Effects of Tea Consumption on Metabolic Syndrome: A Systematic Review and Meta-Analysis of Randomized Clinical Trials. Phytotherapy Research , 34, 2857-2866. https://doi.org/10.1002/ptr.6731
Peluso, I., Raguzzini, A. and Serafini, M. (2013) Effect of Flavonoids on Circulating Levels of TNF- α and IL-6 in Humans: A Systematic Review and Meta-Analysis. Molecular Nutrition & Food Research , 57, 784-801. https://doi.org/10.1002/mnfr.201200721
Carini, F., Tomasello, G., Jurjus, A., et al. (2017) Colorectal Cancer and Inflammatory Bowel Diseases: Effects of Diet and Antioxidants. Journal of Biological Regulators and Homeostatic Agents , 31, 791-795.
de Mejia, E.G., Ramirez-Mares, M.V. and Puangpraphant, S. (2009) Bioactive Components of Tea: Cancer, Inflammation and Behavior. Brain , Behavior , and Immunity , 23, 721-731. https://doi.org/10.1016/j.bbi.2009.02.013
Keller, A. and Wallace, T.C. (2021) Tea Intake and Cardiovascular Disease: An Umbrella Review. Annals of Medicine , 53, 929-944. https://doi.org/10.1080/07853890.2021.1933164
Lamchabbek, N., Elattabi, C., Bour, A., Chimera, B., Boutayeb, S., Belyamani, L., et al. (2025) Associations between Dietary Factors and Breast Cancer Risk: A Systematic Review of Evidence from the MENA Region. Nutrients , 17, Article 394. https://doi.org/10.3390/nu17030394
Chowdhury, P. and Barooah, A.K. (2020) Tea Bioactive Modulate Innate Immunity: In Perception to COVID-19 Pandemic. Frontiers in Immunology , 11, Article 590716. https://doi.org/10.3389/fimmu.2020.590716
Renaud, J., Nabavi, S.F., Daglia, M., Nabavi, S.M. and Martinoli, M. (2015) Epigallocatechin-3-Gallate, a Promising Molecule for Parkinson’s Disease? Rejuvenation Research , 18, 257-269. https://doi.org/10.1089/rej.2014.1639
Arent, S.M., Senso, M., Golem, D.L. and McKeever, K.H. (2010) The Effects of Theaflavin-Enriched Black Tea Extract on Muscle Soreness, Oxidative Stress, Inflammation, and Endocrine Responses to Acute Anaerobic Interval Training: A Randomized, Double-Blind, Crossover Study. Journal of the International Society of Sports Nutrition , 7, Article ID: 11. https://doi.org/10.1186/1550-2783-7-11
Henning, S.M., Wang, P., Said, J.W., Huang, M., Grogan, T., Elashoff, D., et al. (2014) Randomized Clinical Trial of Brewed Green and Black Tea in Men with Prostate Cancer Prior to Prostatectomy. The Prostate , 75, 550-559. https://doi.org/10.1002/pros.22943
Widlansky, M.E., Duffy, S.J., Hamburg, N.M., Gokce, N., Warden, B.A., Wiseman, S., et al. (2005) Effects of Black Tea Consumption on Plasma Catechins and Markers of Oxidative Stress and Inflammation in Patients with Coronary Artery Disease. Free Radical Biology and Medicine , 38, 499-506. https://doi.org/10.1016/j.freeradbiomed.2004.11.013
Mirtaheri, E., Khabbazi, A., Nazemiyeh, H., Ebrahimi, A., Hajalilou, M., Shakibay Novin, Z., et al. (2021) Stachys Schtschegleevii Tea, Matrix Metalloproteinase, and Disease Severity in Female Rheumatoid Arthritis Patients: A Randomized Controlled Clinical Trial. Clinical Rheumatology , 41, 1033-1044. https://doi.org/10.1007/s10067-021-05981-4
Neyestani, T.R., Shariatzade, N., Kalayi, A., Gharavi, A., Khalaji, N., Dadkhah, M., et al. (2010) Regular Daily Intake of Black Tea Improves Oxidative Stress Biomarkers and Decreases Serum C-Reactive Protein Levels in Type 2 Diabetic Patients. Annals of Nutrition and Metabolism , 57, 40-49. https://doi.org/10.1159/000312666
Tomioka, R., Tanaka, Y., Suzuki, M. and Ebihara, S. (2023) The Effects of Black Tea Consumption on Intestinal Microflora—A Randomized Single-Blind Parallel-Group, Placebo-Controlled Study. Journal of Nutritional Science and Vitaminology , 69, 326-339. https://doi.org/10.3177/jnsv.69.326
Tanaka, Y., Suzuki, M. and Ebihara, S. (2021) Inhibitory Effects on Acute Upper Respiratory Tract Inflammation with Black Tea Consumption—A Randomized Single-blind Parallel-Group, Placebo-Controlled Study. Japanese Pharmacology and Therapeutics , 49, 273-288.
Mahmoud, F., Haines, D., Al‐Ozairi, E. and Dashti, A. (2015) Effect of Black Tea Consumption on Intracellular Cytokines, Regulatory T Cells and Metabolic Biomarkers in Type 2 Diabetes Patients. Phytotherapy Research , 30, 454-462. https://doi.org/10.1002/ptr.5548
Bahorun, T., Luximon-Ramma, A., Gunness, T.K., Sookar, D., Bhoyroo, S., Jugessur, R., et al. (2010) Black Tea Reduces Uric Acid and C-Reactive Protein Levels in Humans Susceptible to Cardiovascular Diseases. Toxicology , 278, 68-74. https://doi.org/10.1016/j.tox.2009.11.024
Mukamal, K.J., MacDermott, K., Vinson, J.A., Oyama, N., Manning, W.J. and Mittleman, M.A. (2007) A 6-Month Randomized Pilot Study of Black Tea and Cardiovascular Risk Factors. American Heart Journal , 154, 724.e1-724.e6. https://doi.org/10.1016/j.ahj.2007.07.008
Steptoe, A., Gibson, E.L., Vuononvirta, R., Hamer, M., Wardle, J., Rycroft, J.A., et al. (2007) The Effects of Chronic Tea Intake on Platelet Activation and Inflammation: A Double-Blind Placebo Controlled Trial. Atherosclerosis , 193, 277-282. https://doi.org/10.1016/j.atherosclerosis.2006.08.054
Truong, V., Manochai, B., Pham, T. and Jeong, W. (2021) Antioxidant and Anti-Inflammatory Activities of Zingiber montanum Oil in HepG2 Cells and Lipopolysaccharide-Stimulated RAW 264.7 Macrophages. Journal of Medicinal Food , 24, 595-605. https://doi.org/10.1089/jmf.2021.k.0019
Shamsudin, N.F., Ahmed, Q.U., Mahmood, S., Shah, S.A.A., Sarian, M.N., Khattak, M.M.A.K., et al. (2022) Flavonoids as Antidiabetic and Anti-Inflammatory Agents: A Review on Structural Activity Relationship-Based Studies and Meta-Analysis. International Journal of Molecular Sciences , 23, Article 12605. https://doi.org/10.3390/ijms232012605
Al-Khayri, J.M., Sahana, G.R., Nagella, P., Joseph, B.V., Alessa, F.M. and Al-Mssallem, M.Q. (2022) Flavonoids as Potential Anti-Inflammatory Molecules: A Review. Molecules , 27, Article 2901. https://doi.org/10.3390/molecules27092901
Nasir, N.F., Mohamad, N.E. and Alitheen, N.B. (2022) Fermented Black Tea and Its Relationship with Gut Microbiota and Obesity: A Mini Review. Fermentation , 8, Article 603. https://doi.org/10.3390/fermentation8110603
Inarejos-Garcia, A.M., Heil, J., Guilera Bermell, S. and Morlock, G.E. (2023) Stability of Flavan-3-Ols, Theaflavins, and Methylxanthines in 30 Industrial Green, Black, and White Tea ( Camellia sinensis L.) Extracts Characterized via Liquid Chromatography Techniques. Antioxidants , 12, Article 2121. https://doi.org/10.3390/antiox12122121
Heber, D., Zhang, Y., Yang, J., Ma, J.E., Henning, S.M. and Li, Z. (2014) Green Tea, Black Tea, and Oolong Tea Polyphenols Reduce Visceral Fat and Inflammation in Mice Fed High-Fat, High-Sucrose Obesogenic Diets. The Journal of Nutrition , 144, 1385-1393. https://doi.org/10.3945/jn.114.191007
Gosslau, A., En Jao, D.L., Huang, M., Ho, C., Evans, D., Rawson, N.E., et al. (2011) Effects of the Black Tea Polyphenol Theaflavin-2 on Apoptotic and Inflammatory Pathways in Vitro and in Vivo . Molecular Nutrition & Food Research , 55, 198-208. https://doi.org/10.1002/mnfr.201000165
Suzuki, T., Ohishi, T., Tanabe, H., Miyoshi, N. and Nakamura, Y. (2023) Anti-Inflammatory Effects of Dietary Polyphenols through Inhibitory Activity against Metalloproteinases. Molecules , 28, Article 5426. https://doi.org/10.3390/molecules28145426
Teng, Y., Jin, Z., Ren, W., Lu, M., Hou, M., Zhou, Q., et al. (2022) Theaflavin‐3,3’‐digallate Protects Cartilage from Degradation by Modulating Inflammation and Antioxidant Pathways. Oxidative Medicine and Cellular Longevity , 2022, Article ID: 3047425. https://doi.org/10.1155/2022/3047425
Ben Lagha, A. and Grenier, D. (2016) Black Tea Theaflavins Attenuate Porphyromonas gingivalis Virulence Properties, Modulate Gingival Keratinocyte Tight Junction Integrity and Exert Anti-Inflammatory Activity. Journal of Periodontal Research , 52, 458-470. https://doi.org/10.1111/jre.12411
Aneja, R., Odoms, K., Denenberg, A.G. and Wong, H.R. (2004) Theaflavin, a Black Tea Extract, Is a Novel Anti-Inflammatory Compound. Critical Care Medicine , 32, 2097-2103. https://doi.org/10.1097/01.ccm.0000142661.73633.15
Surma, S., Sahebkar, A. and Banach, M. (2023) Coffee or Tea: Anti-Inflammatory Properties in the Context of Atherosclerotic Cardiovascular Disease Prevention. Pharmacological Research , 187, Article ID: 106596. https://doi.org/10.1016/j.phrs.2022.106596
Tanaka, T. and Matsuo, Y. (2020) Production Mechanisms of Black Tea Polyphenols. Chemical and Pharmaceutical Bulletin , 68, 1131-1142. https://doi.org/10.1248/cpb.c20-00295
de Oliveira Assis, F.S., Vasconcellos, G.L., Lopes, D.J.P., de Macedo, L.R. and Silva, M. (2024) Effect of Green Tea Supplementation on Inflammatory Markers among Patients with Metabolic Syndrome and Related Disorders: A Systematic Review and Meta-Analysis. Preventive Nutrition and Food Science , 29, 106-117. https://doi.org/10.3746/pnf.2024.29.2.106
Pan, S., Nie, Q., Tai, H., Song, X., Tong, Y., Zhang, L., et al. (2022) Tea and Tea Drinking: China’s Outstanding Contributions to the Mankind. Chinese Medicine , 17, Article No. 27. https://doi.org/10.1186/s13020-022-00571-1
Mena, P., Domínguez‐Perles, R., Gironés‐Vilaplana, A., Baenas, N., García‐Viguera, C. and Villaño, D. (2014) Flavan-3-Ols, Anthocyanins, and Inflammation. IUBMB Life , 66, 745-758. https://doi.org/10.1002/iub.1332
Hodgson, J.M., Morton, L.W., Puddey, I.B., Beilin, L.J. and Croft, K.D. (2000) Gallic Acid Metabolites Are Markers of Black Tea Intake in Humans. Journal of Agricultural and Food Chemistry , 48, 2276-2280. https://doi.org/10.1021/jf000089s
Zhou, X., Zeng, L., Chen, Y., Wang, X., Liao, Y., Xiao, Y., et al. (2020) Metabolism of Gallic Acid and Its Distributions in Tea ( Camellia sinensis ) Plants at the Tissue and Subcellular Levels. International Journal of Molecular Sciences , 21, Article 5684. https://doi.org/10.3390/ijms21165684
El Mihyaoui, A., Esteves da Silva, J.C.G., Charfi, S., Candela Castillo, M.E., Lamarti, A. and Arnao, M.B. (2022) Chamomile ( Matricaria chamomilla L.): A Review of Ethnomedicinal Use, Phytochemistry and Pharmacological Uses. Life , 12, Article 479. https://doi.org/10.3390/life12040479
Ayakdaş, G. and Ağagündüz, D. (2025) Determination of L-Theanine and Caffeine Contents in Tea Infusions with Different Fermentation Degrees and Brewing Conditions Using the Chromatographic Method. Foods , 14, Article 2313. https://doi.org/10.3390/foods14132313
Khan, N. and Mukhtar, H. (2018) Tea Polyphenols in Promotion of Human Health. Nutrients , 11, Article 39. https://doi.org/10.3390/nu11010039
Maity, S., Ukil, A., Karmakar, S., Datta, N., Chaudhuri, T., Vedasiromoni, J.R., et al. (2003) Thearubigin, the Major Polyphenol of Black Tea, Ameliorates Mucosal Injury in Trinitrobenzene Sulfonic Acid-Induced Colitis. European Journal of Pharmacology , 470, 103-112. https://doi.org/10.1016/s0014-2999(03)01760-6