Plant Comparison
Tea vs Blackberry Leaf
A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.
At a glance
Tea and Blackberry Leaf: they share 6 indicated uses (arthritis / joint pain, cancer (anticancer research), infection (general), …); 4 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Tea | Blackberry Leaf | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 1/10 | 2/10 | Comparable evidence |
| Cancer (anticancer research) | 8/10 | 2/10 | Stronger for Tea |
| Infection (general) | 1/10 | 2/10 | Comparable evidence |
| Inflammation (general) | 1/10 | 2/10 | Comparable evidence |
| Skin irritation | 1/10 | 2/10 | Comparable evidence |
| Wounds | 1/10 | 2/10 | Comparable evidence |
Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.
Key Constituents
Principal antioxidant polyphenols, most concentrated in minimally oxidised green tea; epigallocatechin gallate (EGCG) is the best studied.
Caffeine gives tea its mild stimulant effect; L-theanine, a unique amino acid, is associated with calm alertness and modulates caffeine's effects.
Oxidative polymerisation products of catechins formed during black tea processing, contributing to black tea's colour and its own antioxidant profile.
Pharmacological Actions
Anti-inflammatory gargle / mouthwash for sore throat and oral mucosa inflammation
Astringent for mild diarrhoea (tannins tighten the gut lining and reduce excess secretion)
Traditional & Indicated Uses
inferred from anti-inflammatory action
inferred from antidiabetic action
inferred from anticancer action
inferred from neuroprotective action
inferred from antimicrobial action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anticancer action
Astringent for mild diarrhoea (tannins tighten the gut lining and reduce excess secretion)
inferred from antimicrobial action
Anti-inflammatory gargle / mouthwash for sore throat and oral mucosa inflammation
Anti-inflammatory gargle / mouthwash for sore throat and oral mucosa inflammation
inferred from astringent action
Anti-inflammatory gargle / mouthwash for sore throat and oral mucosa inflammation
Safety, Cautions & Contraindications
Generally safe in moderate consumption. High caffeine intake may cause insomnia, anxiety, palpitations, or dependence. Large amounts of green tea extract supplements may be hepatotoxic (rare). May reduce iron absorption if consumed with meals. Avoid very high supplement doses during pregnancy.
Duke (2002) rates tea (Camellia sinensis) as ++ and notes anti-aggregant, antioxidant, anticariogenic, and antibacterial activities at the experimental level (score 1). The catechins (EGCG, ECG) and polyphenols are responsible for the antioxidant and anticancer properties under research investigation. Duke notes that green tea preserves more polyphenols than black tea due to less oxidation. Regular tea consumption is associated with reduced cardiovascular risk. Excess consumption (>10 cups daily) may cause fluoride-related bone changes. Caffeine content is relevant for sleep disturbance, anxiety, and interactions with cardiovascular medications (Duke, 2002).
Tannin-rich: high or prolonged intake may cause stomach upset or constipation and can reduce the absorption of iron and some medicines taken at the same time.
Traditional use only; diarrhoea that persists (especially in children) needs medical assessment and attention to rehydration.
External Ids
Botanical Description
Evergreen shrub or small tree with glossy, dark green, leathery, finely toothed leaves. Small, fragrant, white flowers with a prominent central boss of yellow stamens are borne singly or in small clusters in the leaf axils. Commercial tea is made from the young leaves and unopened leaf buds ('sprouts'), processed differently to yield green, black, white or oolong tea from the same species.[15]
Scrambling, thorny deciduous shrub (Rosaceae) forming dense thickets, with arching prickly stems that root at the tip. Leaves are palmately compound, usually with 3-5 toothed leaflets. White to pale pink, five-petalled flowers are followed by clusters of small drupelets forming the blackberry fruit, ripening from red to glossy black.[8]
Habitat
Native to the subtropical and tropical forests and hillsides of East and South Asia (China, India, Myanmar); cultivated extensively across Asia, Africa and elsewhere on well-drained, acidic upland soils.[15]
Native throughout Europe and widely naturalised elsewhere, an aggressive coloniser of hedgerows, woodland edges, scrub and waste ground. 'Rubus fruticosus' is a taxonomically complex aggregate comprising hundreds of closely related microspecies.[8]
Harvesting
The youngest leaves and unopened leaf buds ('flush') are hand- or machine-picked repeatedly through the growing season; how the fresh leaf is subsequently processed (withered, rolled, oxidised, fixed and dried) determines whether it becomes green, black, white or oolong tea.[15]
Leaves are picked fresh throughout the growing season and dried for tea; berries are picked in late summer once fully ripe.[8]
Traditional Uses
Blackberry leaf has a long European folk-medicine tradition as an astringent gargle for sore throat and mouth ulcers, and as a remedy for mild diarrhoea, reflecting its high tannin content; the berries themselves are valued as a nutritious, antioxidant-rich food.[8]
Preparations
Young leaf, minimally oxidised, infused in hot water; the least-processed and most-studied form for antioxidant polyphenol content.
Concentrated leaf extract standardised to catechin (e.g. EGCG) content, taken as capsules; used in some clinical studies, though high-dose extracts carry rare hepatotoxicity concerns.
Dosage
The EU herbal monograph on green tea leaf (Camelliae sinensis non fermentatum folium) gives, for adults and elderly, 1.8-2.2 g of the whole or comminuted leaf in 100-150 mL of boiling water as an infusion, 3-5 times daily; a powdered herbal substance at 390 mg three times daily (up to 5 if necessary) is also listed. Contraindicated in gastric and duodenal ulcers, cardiovascular disorders such as hypertension and arrhythmia, and hyperthyroidism. Not recommended under 18 years. Educational reference only, not a prescription.
Traditional guidance suggests roughly 2-4 g dried leaf per cup as an infusion, up to three times daily, or used as a gargle at similar strength. Educational reference only, not a prescription.
References
Drug Class Interactions
Not documented
Lookalikes Review
References & Sources
- Mancini, E., Beglinger, C., Drewe, J., Zanchi, D. et al (2017) 'Green tea effects on cognition, mood and human brain function: A systematic review', Phytomedicine, 34, pp. 26-37. doi:10.1016/j.phymed.2017.07.008 Meta-analysis / review
https://doi.org/10.1016/j.phymed.2017.07.008 - Musial, C., Kuban-Jankowska, A. and Gorska-Ponikowska, M (2020) 'Beneficial Properties of Green Tea Catechins', International Journal of Molecular Sciences, 21(5), pp. 1744. doi:10.3390/ijms21051744 Traditional / reference
https://doi.org/10.3390/ijms21051744 - Ohishi, T., Goto, S., Monira, P., Isemura, M. and Nakamura, Y (2016) 'Anti-inflammatory Action of Green Tea', Anti-inflammatory & Anti-allergy Agents in Medicinal Chemistry, 15(2), pp. 74-90. doi:10.2174/1871523015666160915154443 Traditional / reference
https://doi.org/10.2174/1871523015666160915154443 - Zhao, T., Li, C., Wang, S. and Song, X (2022) 'Green Tea (Camellia sinensis): A Review of Its Phytochemistry, Pharmacology, and Toxicology', Molecules, 27(12), pp. 3909. doi:10.3390/molecules27123909 Meta-analysis / review
https://doi.org/10.3390/molecules27123909 - Filippini, T., Malavolti, M., Borrelli, F., Izzo, A.A., Fairweather-Tait, S.J., Horneber, M. and Vinceti, M (2020) 'Green tea (Camellia sinensis) for the prevention of cancer', Cochrane Database of Systematic Reviews, 3(3), pp. CD005004. doi:10.1002/14651858.CD005004.pub3 Meta-analysis / review
https://doi.org/10.1002/14651858.CD005004.pub3 - Prasanth, M.I., Sivamaruthi, B.S., Chaiyasut, C. and Tencomnao, T (2019) 'A Review of the Role of Green Tea (Camellia sinensis) in Antiphotoaging, Stress Resistance, Neuroprotection, and Autophagy', Nutrients, 11(2), pp. 474. doi:10.3390/nu11020474 Meta-analysis / review
https://doi.org/10.3390/nu11020474 - Bedrood, Z., Rameshrad, M. and Hosseinzadeh, H (2018) 'Toxicological effects of Camellia sinensis (green tea): A review', Phytotherapy Research, 32(7), pp. 1163-1180. doi:10.1002/ptr.6063 Meta-analysis / review
https://doi.org/10.1002/ptr.6063 - Hamilton-Miller, J.M.T (2001) 'Anti-cariogenic properties of tea (Camellia sinensis)', Journal of Medical Microbiology, 50(4), pp. 299-302. doi:10.1099/0022-1317-50-4-299 Meta-analysis / review
https://doi.org/10.1099/0022-1317-50-4-299 - Conde, V.R., Alves, M.G., Oliveira, P.F. and Silva, B.M (2015) 'Tea (Camellia sinensis (L.)): a putative anticancer agent in bladder carcinoma?', Anti-Cancer Agents in Medicinal Chemistry, 15(1), pp. 26-36. doi:10.2174/1566524014666141203143143 Meta-analysis / review
https://doi.org/10.2174/1566524014666141203143143 - Moore, R.J., Jackson, K.G. and Minihane, A.M (2009) 'Green tea (Camellia sinensis) catechins and vascular function', British Journal of Nutrition, 102(12), pp. 1790-1802. doi:10.1017/S0007114509991218 Meta-analysis / review
https://doi.org/10.1017/S0007114509991218 - Gaur, R. and Bao, G.H (2021) 'Chemistry and Pharmacology of Natural Catechins from Camellia sinensis as Anti-MRSA Agents', Current Topics in Medicinal Chemistry, 21(17), pp. 1519-1537. doi:10.2174/1568026621666210524100632 Meta-analysis / review
https://doi.org/10.2174/1568026621666210524100632 - Tafazoli, A. and Tafazoli Moghadam, E (2020) 'Camellia Sinensis Mouthwashes in Oral Care: a Systematic Review', Journal of Dentistry (Shiraz), 21(4), pp. 249-262. doi:10.30476/DENTJODS.2020.83204.1045 Meta-analysis / review
https://doi.org/10.30476/DENTJODS.2020.83204.1045 - Albassam, A.A. and Markowitz, J.S (2017) 'An Appraisal of Drug-Drug Interactions with Green Tea (Camellia sinensis)', Planta Medica, 83(6), pp. 496-508. doi:10.1055/s-0043-100934 Meta-analysis / review
https://doi.org/10.1055/s-0043-100934 - Gramza-Michalowska, A (2014) 'Caffeine in tea Camellia sinensis - content, absorption, benefits and risks of consumption', Journal of Nutrition, Health & Aging, 18(2), pp. 143-149. doi:10.1007/s12603-013-0404-1 Meta-analysis / review
https://doi.org/10.1007/s12603-013-0404-1 - Chacko, S.M. et al (2010) 'Beneficial effects of green tea: a literature review'. Traditional / reference
https://scholar.google.com/scholar?q=Beneficial%20effects%20of%20green%20tea%3A%20a%20literature%20review - European Medicines Agency (HMPC) (2013) 'Community herbal monograph on Camellia sinensis (L.) Kuntze, non fermentatum folium'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-camellia-sinensis-l-kuntze-non-fermentatum-folium_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-monograph/final-community-herbal-monograph-camellia-sinensis-l-kuntze-non-fermentatum-folium_en.pdf - Drake, V.J (2015) 'Tea catechins and cardiovascular disease risk', 74(1), pp. 39--46. Traditional / reference
https://scholar.google.com/scholar?q=Tea%20catechins%20and%20cardiovascular%20disease%20risk - Nobre, A.C., Rao, A. and Owen, G.N (2008) 'L-theanine, a natural constituent in tea, and its effect on mental state', pp. 167--168. Traditional / reference
https://scholar.google.com/scholar?q=L-theanine%2C%20a%20natural%20constituent%20in%20tea%2C%20and%20its%20effect%20on%20mental%20state - Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition - Misaka, S., Yatabe, J., Muller, F., Takano, K., Kawabe, K., Glaeser, H., Yatabe, M.S., Onoue, S., Werba, J.P., Watanabe, H., Yamada, S., Fromm, M.F. and Kimura, J (2014) 'Green tea ingestion greatly reduces plasma concentrations of nadolol in healthy subjects', Clinical Pharmacology and Therapeutics, 95(4), pp. 432-438. doi:10.1038/clpt.2013.241 Randomized trial
https://doi.org/10.1038/clpt.2013.241 - Werba, J.P., Misaka, S., Giroli, M.G., Shimomura, K., Amato, M., Simonelli, N., Vigo, L. and Tremoli, E (2018) 'Update of green tea interactions with cardiovascular drugs and putative mechanisms', Journal of Food and Drug Analysis, 26(2S), pp. S72-S77. doi:10.1016/j.jfda.2018.01.008 Meta-analysis / review
https://doi.org/10.1016/j.jfda.2018.01.008
- Zia-Ul-Haq, M., Riaz, M., De Feo, V., Jaafar, H.Z.E. and Moga, M (2014) 'Rubus fruticosus L.: constituents, biological activities and health related uses', Molecules, 19(8), pp. 10998-11029. doi:10.3390/molecules190810998 Traditional / reference
https://doi.org/10.3390/molecules190810998 - Monforte, M.T., Smeriglio, A., Germanò, M.P., Pergolizzi, S., Circosta, C. and Galati, E.M (2018) 'Evaluation of antioxidant, antiinflammatory, and gastroprotective properties of Rubus fruticosus L. fruit juice', Phytotherapy Research, 32(7), pp. 1404-1414. doi:10.1002/ptr.6078 Preclinical
https://doi.org/10.1002/ptr.6078 - Barbieri, F., Montanari, C., Šimat, V., Skroza, D., Čagalj, M. et al (2022) 'Effects of Rubus fruticosus and Juniperus oxycedrus derivatives on culturability and viability of Listeria monocytogenes', Scientific Reports, 12(1), pp. 13158. doi:10.1038/s41598-022-17408-4 Preclinical
https://doi.org/10.1038/s41598-022-17408-4 - Sung, N.S., Uhm, S.H., Kang, H.B., Lee, N.S., Jeong, Y.G., Kim, D.K., Sung, N.Y., Kim, D.S., Yoo, Y.C. and Han, S.Y (2023) 'Rubus fruticosus leaf extract inhibits vascular dementia-induced memory impairment and neuronal loss by attenuating neuroinflammation', Anatomy & Cell Biology, 56(4), pp. 494-507. doi:10.5115/acb.23.195 Preclinical
https://doi.org/10.5115/acb.23.195 - Verma, R., Gangrade, T., Punasiya, R. and Ghulaxe, C (2014) 'Rubus fruticosus (blackberry) use as an herbal medicine', Pharmacognosy Reviews, 8(16), pp. 101-104. doi:10.4103/0973-7847.134239 Traditional / reference
https://doi.org/10.4103/0973-7847.134239 - Gil-Martinez, L., Mut-Salud, N., Ruiz-Garcia, J.A., Falcon-Pineiro, A., Maijo-Ferre, M., Banos, A., De la Torre-Ramirez, J.M., Guillamon, E., Verardo, V. and Gomez-Caravaca, A.M (2023) 'Phytochemicals Determination, and Antioxidant, Antimicrobial, Anti-Inflammatory and Anticancer Activities of Blackberry Fruits', Foods, 12(7), pp. 1505. doi:10.3390/foods12071505 Preclinical
https://doi.org/10.3390/foods12071505 - Van de Velde, F., Esposito, D., Grace, M.H., Pirovani, M.E. and Lila, M.A (2018) 'Anti-inflammatory and wound healing properties of polyphenolic extracts from strawberry and blackberry fruits', Food Research International, 121, pp. 453-462. doi:10.1016/j.foodres.2018.11.059 Preclinical
https://doi.org/10.1016/j.foodres.2018.11.059 - Verma, R., Gangrade, T., Punasiya, R. and Ghulaxe, C (2014) 'Rubus fruticosus (blackberry) use as an herbal medicine', Pharmacognosy Reviews. Available at: https://pmc.ncbi.nlm.nih.gov/articles/PMC4127818/ Preclinical
https://pmc.ncbi.nlm.nih.gov/articles/PMC4127818/ - Grabek-Lejko, D., Milek, M., Sidor, E., Puchalski, C. and Dzugan, M (2022) 'Antiviral and Antibacterial Effect of Honey Enriched with Rubus spp. as a Functional Food with Enhanced Antioxidant Properties', Molecules, pp. as. doi:10.3390/molecules27154859 Preclinical
https://doi.org/10.3390/molecules27154859
Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.