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Tea Polyphenols and Their Preventive Measures against Cancer: Current Trends and Directions
Anuva Talukder Trisha1, Mynul Hasan Shakil1, Suvro Talukdar1
1Department of Food Engineering and Tea Technology, Shahjalal University of Science and Technology, Sylhet 3114, Bangladesh.
Foods (Basel, Switzerland)
|November 11, 2022
Summary
Green tea catechins show promise in reducing the risk of several cancers, including breast, ovarian, and prostate cancer. However, evidence is insufficient for lung, esophageal, or stomach cancer prevention.
Area of Science:
- Oncology
- Nutritional Science
- Preventive Medicine
Background:
- Cancer poses a significant global health burden.
- Green tea, rich in simple catechins (up to 30% dry weight), is recognized for its potential health benefits.
- Existing research suggests green tea possesses anti-diabetic, anti-obese, anti-inflammatory, neuro-protective, and cardio-protective properties.
Purpose of the Study:
- To review and synthesize current scientific understanding of the anti-carcinogenic effects of green tea catechins.
- To emphasize the role of green tea polyphenols (GTP) in cancer prevention strategies.
- To consolidate recent findings on green tea's efficacy against various cancer types.
Main Methods:
- Literature review and synthesis of in vitro and in vivo studies.
- Analysis of epidemiological data and clinical trial outcomes related to green tea consumption and cancer risk.
- Focus on studies investigating the impact of green tea polyphenols on cancer development and progression.
Main Results:
- Green tea consumption is associated with a reduced risk of several cancers, including breast, ovarian, liver, colorectal, skin, prostate, and oral cancers.
- The anti-cancer effects are attributed to the high simple catechin content in green tea.
- Insufficient evidence was found to support a reduced risk for lung, esophageal, or stomach cancers.
Conclusions:
- Green tea catechins demonstrate significant potential in the prevention of multiple cancer types.
- Further research is warranted to explore the mechanisms and confirm the preventive effects for all cancer types.
- Green tea represents a promising natural agent for cancer risk reduction strategies.
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