Last update
6/11/2026
Reviewed By
Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 16 Researches
8.1
USERS' SCORE
Good
Based on 1 Review
8.3
Supplement Facts
Serving Size: 1 Veg Capsule
Amount Per Serving
%DV
Vitamin C (as Ascorbic Acid)
60 mg
67%
Green Tea Extract(Leaf) (up to 32 mg of naturally occurring caffeine)(min. 40% Catechins)
400 mg
†
Top Medical Research Studies
9
We conducted a systematic review and meta-analysis to examine how green tea extract impacts cardiovascular risk factors, such as cholesterol levels and blood sugar. Our search included numerous randomized clinical trials and uncovered that green tea supplementation tends to lower total cholesterol and LDL cholesterol while raising HDL cholesterol.
We also found that it improves glycemic markers, such as fasting blood sugar. Overall, these findings support the idea that green tea can be beneficial for heart health and managing metabolic risk factors.
We also found that it improves glycemic markers, such as fasting blood sugar. Overall, these findings support the idea that green tea can be beneficial for heart health and managing metabolic risk factors.
Read More
9
We analyzed several studies to see if drinking green tea impacts stroke risk. By looking at data from over 645,000 people, we found that higher green tea consumption is linked to a significantly lower risk of stroke.
Those who drank around 300 mL to 900 mL daily showed the most benefit. Specifically, moderate drinkers had the most reduced risk, suggesting that enjoying green tea could be a smart choice for heart health.
Those who drank around 300 mL to 900 mL daily showed the most benefit. Specifically, moderate drinkers had the most reduced risk, suggesting that enjoying green tea could be a smart choice for heart health.
Read More
8
We evaluated the link between green tea consumption and coronary heart disease (CHD) through a meta-analysis of seven cohort studies involving nearly 773,000 participants. The findings suggest a potential reduction in CHD risk with low to moderate green tea intake. Specifically, drinking one to four cups daily appeared to lower risk compared to those who don’t drink green tea, showing that moderation might be beneficial. However, we note that further research is necessary to solidify these associations before making any definitive claims.
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Most Useful Reviews
6
Supports heart health
1 people found this helpful
Green tea catechins are antioxidant polyphenols that promote cardiovascular disease and immune health. They offer significant antioxidant support.
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 16 Researches
8.1
- All Researches
9
We conducted a systematic review and meta-analysis to examine how green tea extract impacts cardiovascular risk factors, such as cholesterol levels and blood sugar. Our search included numerous randomized clinical trials and uncovered that green tea supplementation tends to lower total cholesterol and LDL cholesterol while raising HDL cholesterol.
We also found that it improves glycemic markers, such as fasting blood sugar. Overall, these findings support the idea that green tea can be beneficial for heart health and managing metabolic risk factors.
We also found that it improves glycemic markers, such as fasting blood sugar. Overall, these findings support the idea that green tea can be beneficial for heart health and managing metabolic risk factors.
Read More
9
We analyzed several studies to see if drinking green tea impacts stroke risk. By looking at data from over 645,000 people, we found that higher green tea consumption is linked to a significantly lower risk of stroke.
Those who drank around 300 mL to 900 mL daily showed the most benefit. Specifically, moderate drinkers had the most reduced risk, suggesting that enjoying green tea could be a smart choice for heart health.
Those who drank around 300 mL to 900 mL daily showed the most benefit. Specifically, moderate drinkers had the most reduced risk, suggesting that enjoying green tea could be a smart choice for heart health.
Read More
9
We examined how the ethanol extract of the flower from (Wall.) Meisn affects atherosclerotic cardiovascular disease, a leading cause of death globally.
In our research, we treated mice with a high-fat diet and observed that this extract reduced the formation of foam cells in macrophages, which play a significant role in plaque buildup.
The study revealed that the extract significantly decreased the size of atherosclerotic plaques and improved the expression of key genes involved in lipid transport.
Overall, we found promising evidence that (Wall.) Meisn extract could help combat atherosclerosis.
In our research, we treated mice with a high-fat diet and observed that this extract reduced the formation of foam cells in macrophages, which play a significant role in plaque buildup.
The study revealed that the extract significantly decreased the size of atherosclerotic plaques and improved the expression of key genes involved in lipid transport.
Overall, we found promising evidence that (Wall.) Meisn extract could help combat atherosclerosis.
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9
Tea extracts prevent obesity-related hypertension
We investigated the effects of two tea extracts, one from white tea and another combining black and green teas, on hypertension linked to metabolic syndrome in mice.
Over 20 weeks, mice on a high-fat, high-sugar diet who received these supplements showed improved blood vessel function and reduced inflammatory markers.
Importantly, these extracts seemed to prevent hypertension development, suggesting they could be a natural strategy for managing cardiovascular issues related to metabolic syndrome.
Over 20 weeks, mice on a high-fat, high-sugar diet who received these supplements showed improved blood vessel function and reduced inflammatory markers.
Importantly, these extracts seemed to prevent hypertension development, suggesting they could be a natural strategy for managing cardiovascular issues related to metabolic syndrome.
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9
We conducted a study to evaluate the effects of a vitamin C supplement combined with a hawthorn beverage on blood pressure and oxidative stress among workers exposed to heat. This involved a 40-day cluster-randomized controlled trial where participants were split into two groups: one received the vitamin C and hawthorn drink, while the other was provided with slightly salted water.
Throughout the study, we measured blood pressure and levels of a specific oxidative stress marker at different intervals. Notably, we observed significant reductions in both systolic and diastolic blood pressure among those who consumed the vitamin C and hawthorn beverage compared to the control group. This suggests that the combination may help manage elevated blood pressure linked to heat exposure.
The findings highlight the potential role of vitamin C, especially when paired with other beneficial compounds in the hawthorn beverage, in combating oxidative stress and promoting cardiovascular health in individuals working in challenging environmental conditions.
Throughout the study, we measured blood pressure and levels of a specific oxidative stress marker at different intervals. Notably, we observed significant reductions in both systolic and diastolic blood pressure among those who consumed the vitamin C and hawthorn beverage compared to the control group. This suggests that the combination may help manage elevated blood pressure linked to heat exposure.
The findings highlight the potential role of vitamin C, especially when paired with other beneficial compounds in the hawthorn beverage, in combating oxidative stress and promoting cardiovascular health in individuals working in challenging environmental conditions.
Read More
User Reviews
USERS' SCORE
Good
Based on 1 Review
8.3
- All Reviews
- Positive Reviews
- Negative Reviews
6
Supports heart health
1 people found this helpful
Green tea catechins are antioxidant polyphenols that promote cardiovascular disease and immune health. They offer significant antioxidant support.
Read More
Frequently Asked Questions
8
We investigated the effects of green tea extract's derived carbon dots on abdominal aortic aneurysm (AAA) progression. Utilizing a mouse model, our study focused on how these carbon dots could reduce oxidative stress, a key factor in AAA development.
We found that they not only lowered harmful reactive oxygen species but also inhibited significant processes like apoptosis and ferroptosis linked to AAA.
Ultimately, these results suggest that green tea-derived carbon dots could be a promising approach to slowing down AAA progression, offering hope where effective treatments have been lacking.
We found that they not only lowered harmful reactive oxygen species but also inhibited significant processes like apoptosis and ferroptosis linked to AAA.
Ultimately, these results suggest that green tea-derived carbon dots could be a promising approach to slowing down AAA progression, offering hope where effective treatments have been lacking.
9
We conducted a systematic review and meta-analysis to examine how green tea extract impacts cardiovascular risk factors, such as cholesterol levels and blood sugar. Our search included numerous randomized clinical trials and uncovered that green tea supplementation tends to lower total cholesterol and LDL cholesterol while raising HDL cholesterol.
We also found that it improves glycemic markers, such as fasting blood sugar. Overall, these findings support the idea that green tea can be beneficial for heart health and managing metabolic risk factors.
We also found that it improves glycemic markers, such as fasting blood sugar. Overall, these findings support the idea that green tea can be beneficial for heart health and managing metabolic risk factors.
8
We developed a new method to efficiently extract anthocyanins from the Rupr. berry, traditionally used for health benefits in cardiovascular care. Our study tested this extract's impact on blood pressure in rodents with hypertension.
While we observed positive changes in cardiac function and significant alterations in certain serum markers, the results strongly indicate the extract’s potential in managing hypertension. This study shines a light on how traditional remedies can be optimized for modern therapeutic use.
While we observed positive changes in cardiac function and significant alterations in certain serum markers, the results strongly indicate the extract’s potential in managing hypertension. This study shines a light on how traditional remedies can be optimized for modern therapeutic use.
7
(poly)phenols may improve heart health
We examined how technologically processed foods enriched with (poly)phenols affect cardiovascular disease risk factors. By reviewing 12 randomized controlled trials, we found that certain foods, including those fortified with green tea extract, may lower blood pressure and improve blood lipid levels. However, while these findings are promising, they come with cautions. The overall research is limited, and further studies are necessary to deepen our understanding of these benefits. Thus, while incorporating (poly)phenol-rich foods seems beneficial, we should remain cautious about drawing definitive conclusions at this stage.
References
- de la Fuente-Muñoz M, Román-Carmena M, Amor S, Iglesias-de la Cruz MC, Martorell P, et al. Supplementation with Standardized Green/Black or White Tea Extracts Attenuates Hypertension and Ischemia-Reperfusion-Induced Myocardial Damage in Mice Infused with Angiotensin II. Antioxidants (Basel). 2025;14. 10.3390/antiox14010047
- Zhang L, Chen S, Ning M, Guo S, Wen D, et al. Tea Polyphenol-Derived Carbon Dots Alleviate Abdominal Aortic Aneurysm Progression by Mitigating Oxidative Stress and Ferroptosis. ACS Appl Bio Mater. 2025;8:688. 10.1021/acsabm.4c01549
- Khan N, Yusufu M, Ahmadova Z, Maihemuti N, Hailati S, et al. Optimization of Ultrasound Extraction of Total Anthocyanin From Rupr. by Response Surface Methodology and Its Antihypertensive Effect. Food Sci Nutr. 2024;12:10699. 10.1002/fsn3.4591
- Kanu VR, Pulakuntla S, Kuruvalli G, Aramgam SL, Marthadu SB, et al. Anti-atherogenic role of green tea (Camellia sinensis) in South Indian smokers. J Ethnopharmacol. 2024;332:118298. 10.1016/j.jep.2024.118298
- Frumuzachi O, Babotă M, Miere D, Mocan A, Crișan G. The impact of consuming technologically processed functional foods enriched/fortified with (poly)phenols on cardiometabolic risk factors: a systematic review of randomized controlled trials. Crit Rev Food Sci Nutr. 2025;65:947. 10.1080/10408398.2023.2286475
- Wang ZM, Zhao D, Wang H, Wang QM, Zhou B, et al. Green tea consumption and the risk of coronary heart disease: A systematic review and meta-analysis of cohort studies. Nutr Metab Cardiovasc Dis. 2023;33:715. 10.1016/j.numecd.2023.01.017
- Zamani M, Kelishadi MR, Ashtary-Larky D, Amirani N, Goudarzi K, et al. The effects of green tea supplementation on cardiovascular risk factors: A systematic review and meta-analysis. Front Nutr. 2022;9:1084455. 10.3389/fnut.2022.1084455
- Wang ZM, Chen B, Zhou B, Zhao D, Wang LS. Green tea consumption and the risk of stroke: A systematic review and meta-analysis of cohort studies. Nutrition. 2023;107:111936. 10.1016/j.nut.2022.111936
- Tang L, Kuang C, Shan D, Shi M, Li J, et al. The ethanol extract of (Wall.) Meisn attenuates macrophage foam cell formation and atherogenesis in ApoE mice. Front Cardiovasc Med. 2022;9:1023438. 10.3389/fcvm.2022.1023438
- de la Fuente Muñoz M, de la Fuente Fernández M, Román-Carmena M, Iglesias de la Cruz MDC, Amor S, et al. Supplementation with Two New Standardized Tea Extracts Prevents the Development of Hypertension in Mice with Metabolic Syndrome. Antioxidants (Basel). 2022;11. 10.3390/antiox11081573
- Tognolli K, Silva V, Sousa-Filho CPB, Cardoso CAL, Gorjão R, et al. Green tea beneficial effects involve changes in the profile of immune cells in the adipose tissue of obese mice. Eur J Nutr. 2023;62:321. 10.1007/s00394-022-02963-3
- Zhang X, Xu P, Lin B, Deng X, Zhu J, et al. attenuated vascular remodeling by alleviating endoplasmic reticulum stress in spontaneously hypertensive rats. Food Funct. 2022;13:6293. 10.1039/d1fo04381a
- Rock CR, Miller SL, Allison BJ. The Use of Antioxidants for Cardiovascular Protection in Fetal Growth Restriction: A Systematic Review. Antioxidants (Basel). 2024;13. 10.3390/antiox13111400
- Guo X, Xiao T, Lin L, Gao Q, Lai B, et al. Proliferation capability of natural killer cells upon cytokines stimulation correlated negatively with serum lactate dehydrogenase level in coronary artery disease patients. Front Immunol. 2024;15:1436747. 10.3389/fimmu.2024.1436747
- Dong G, Xu W, Xu L. Causal Effect of Macronutrient and Micronutrient Intake on Stroke: A Two-Sample Mendelian Randomization Study. Nutrients. 2024;16. 10.3390/nu16172818
- Du W, Zhang S, Yang J, Fan H. Effect of vitamin C and hawthorn beverage formula on blood pressure and oxidative stress in heat-exposed workers: a cluster-randomized controlled trial. Asia Pac J Clin Nutr. 2024;33:503. 10.6133/apjcn.202412_33(4).0005
