Coffee and tea intake and risk of breast cancer

Bhoo-Pathy, Nirmala; Peeters, Petra H.M.; Gils, Carla van; Beulens, Joline W.J.; Graaf, Yolanda van der; Bueno‐de‐Mesquita, Bas; Bulgiba, Awang; Uiterwaal, Cuno S.P.M.

doi:10.1007/s10549-009-0583-y

Cited by 44 publications

(35 citation statements)

References 36 publications

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“…A manual search of the references of the included studies did not yield any new eligible studies. Among the studies included, 20 were from the USA or Canada (Heilbrun et al, 1986;Kinlen et al, 1988;Shibata et al, 1994;Zheng et al, 1996;Harnack et al, 1997;Michaud et al, 1999Michaud et al, , 2001Su and Arab, 2002;Adebamowo et al, 2005;Michels et al, 2005;Silvera et al, 2007;Ganmaa et al, 2008;Tworoger et al, 2008;Boggs et al, 2010;Holick et al, 2010;Ren et al, 2010;Dubrow et al, 2012;Sinha et al, 2012;Hildebrand et al, 2013), 15 were from Europe (Goldbohm et al, 1996;Hartman et al, 1998;Terry and Wolk, 2001;Zeegers et al, 2001;Larsson and Wolk, 2005;Hirvonen et al, 2006;Steevens et al, 2007;Larsson et al, 2009;Bhoo Pathy et al, 2010;Michaud et al, 2010;Fagherazzi et al, 2011;Ros et al, 2011;Braem et al, 2012;Shafique et al, 2012;Geybels et al, 2013) and 22 were from Asia (Key et al, 1999;Nagano et al, 2001;Tsubono et al, 2001;Hoshiyama et al, 2002;Allen et al, 2004;…”

Section: Resultsmentioning

confidence: 99%

Tea consumption and the incidence of cancer

Zhang¹,

Lü

et al. 2015

European Journal of Cancer Prevention

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The aim of this study was to summarize the current evidence on the strength of associations between tea consumption and the incidence of cancer at different sites. We searched PubMed, Embase and the Cochrane Library for relevant articles published before October 2013. Prospective studies that reported effect estimates of cancer incidence, with 95% confidence intervals (CIs), for more than two categories of tea consumption were included. We analysed 87 datasets (57 articles), which included a total of 49,812 incident cases. Overall, high tea consumption had no significant effect on the risk of gastric, rectal, colon, lung, pancreatic, liver, breast, prostate, ovarian, bladder cancers or gliomas. However, high tea consumption was associated with a reduced risk of oral cancer (risk ratio 0.72; 95% CI 0.54-0.95; P=0.021). A dose-response meta-analysis suggested that an increase in tea consumption by one cup per day was associated with a reduced risk of oral cancer (risk ratio 0.89; 95% CI 0.80-0.98; P=0.022), but had little effect on the incidence of other cancers. Subgroup analysis indicated that an increase in the consumption of black tea by one cup per day was associated with an increased risk of breast cancer. Moreover, in western countries, we found that an increase in the consumption of tea by one cup per day was associated with a reduced risk of bladder cancer. Increased tea consumption has no significant effect on the risk of common malignancies. For some cancer types, associations differ according to sex, ethnicity and tea type.

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Section: Resultsmentioning

confidence: 99%

Tea consumption and the incidence of cancer

Zhang¹,

Lü

et al. 2015

European Journal of Cancer Prevention

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“…A recent large study showed a relationship between breast cancer risk and tea consumption, with the risk being highest in the groups that did not consume tea and lowest in the groups that consumed the most cups per day. Number of cups were assessed in five categories (0.1-1.0 cups, 1.1-2.0 cups, 2.1-3.0 cups, 3.1-5.0 cups, >5.0 cups) [35]. Analysis of the types of green tea beverage or extracts used in studies suggests that green tea beverage or a supplement containing mixed catechins may be more effective than using single catechin (e.g., EGCG) supplements [36].…”

Section: Anticarcinogenic Properties Of Green Teamentioning

confidence: 99%

An Update on the Health Benefits of Green Tea

Reygaert

2017

Beverages

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Abstract:Green tea, which is produced from the leaves of the Camellia sinensis plant, is one of the most popular beverages worldwide. Over the past 30 years or more, scientists have studied this plant in respect to potential health benefits. Research has shown that the main components of green tea that are associated with health benefits are the catechins. The four main catechins found in green tea are: (−)-epicatechin (EC), (−)-epicatechin-3-gallate (ECG), (−)-epigallocatechin (EGC), and (−)-epigallocatechin-3-gallate (EGCG). Of these four, EGCG is present in the largest quantity, and so has been used in much of the research. Among the health benefits of green tea are: anticarcinogenic, anti-inflammatory, antimicrobial, and antioxidant properties, and benefits in cardiovascular disease and oral health. Research has been carried out using various animal models and cells lines, and is now more and more being carried out in humans. This type of research will help us to better understand the direct benefits of green tea. This review will focus primarily on research conducted using human subjects to investigate the health benefits of green tea.

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“…[ [129][130][131][132][133] Coffee drinking cause incontinence Women who drink more than 329 mg of caffeine daily caffeinated coffee exposed for about 70% or more likely to build up incontinence [134][135][136][137] Coffee drinking associated with digestive disorders Upset stomach or indigestion occurs when we drink caffeine [138,139] Coffee drinking can cause headaches Over drinking of coffee cause symptom of a headache due to its caffeine chemical compound.…”

Section: Health Risks Of Coffee Consumption Mode Of Action Sourcesmentioning

confidence: 99%

Review on Health Benefit and Risk of Coffee Consumption

Wachamo¹

2017

Med Aromat Plants

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Coffee is the world's beloved drink that is the most regularly consumed caffeine-containing beverage next to water and tea. It contains a multipart combination of chemicals constituents, which associated with health benefits, most consumers, begin their day with a minimum a cup of coffee after eating food, and end their workday with coffee. It is considered as a significant part of modern daily life because it has an alerting outcome on the human brain. Opposing this, various groups report experiencing uneven health risks thus hesitant to drink coffee, this suggests individual disparity to coffee intolerance. The aim of this review was to in brief summarize health benefits and risks coffee consumption. Most of the informative reports suggested that long-term consumption of coffee and decaffeinated coffee can reduce the risk of many diseases. Among these it is used to boosts our physical performance, burn fat, reduces risk of stroke, liver, prostate and colorectal cancer by 20%, risk of Parkinson's disease by 25%, lower risk of Type II diabetes, reduces risk of dementia and protects our mind, brightens our mood, helps us to fight depression and minimize risk of suicide by 50%. In addition, coffee consumers have less risk of heart disease, with strongly integrated DNA. Also reports that coffee drinking has also naturally extended sleep latency, minimizes total sleep time and its effectiveness, and worsened supposed sleep feature.However, from positive health prospect of coffee consumption, a recent study finds coffee consumption does not always provide protective benefits because overdrinking is associated with negative impact or risk on our health. Some negative impact of coffee consumption on our health; it reduces appetite levels for food, impact on pregnant women, on people with cholesterol, cause insomnia and restlessness, breast tissue cysts in women, incontinence digestive disorders, and risk of headaches. In addition, decrease fertility probability in female and male, cause allergies and miscarriage, forceful heart contractions, anxiety, depression and the need for anxiety medication, inhibits collagen production in the skin of human being, less hearing loss improvement, does not help with extended sleep deprivation interferes with ossification and could also lead to greater risk of bone fracture. Finally, the most recent studies reported that coffee consumption is beneficial for our health when it is optimum range approximately four cups on average. The supplementary research will be crucial to make clear that both the health benefits and risk of coffee consumption.

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Coffee and tea intake and risk of breast cancer

Cited by 44 publications

References 36 publications

Tea consumption and the incidence of cancer

Tea consumption and the incidence of cancer

An Update on the Health Benefits of Green Tea

Review on Health Benefit and Risk of Coffee Consumption

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