Can Green Tea Help Prevent Cancer?

Can Green Tea Help Prevent Cancer?


[Music] tea consumption is associated with a reduced risk of heart disease stroke and premature death in general with each additional cup of green tea a day associated with a four percent lower mortality risk so maybe drinking several cups of tea daily can keep the doctor away as well as the mortician but what about cancer there is growing evidence from laboratory population and human interventional studies that tea can exert beneficial disease preventive effects and further masses slow cancer progression let’s review some of that evidence not only to those who drink a lot of tea appear to live years longer than those who drink less drinking lots of tea may delay the onset of cancer now these are in Japanese tea cups which only contain half a cup so the highest category here is greater than or equal to five full cups of tea not ten the women who did get cancer appeared to get it seven years later if they’ve been drinking lots of tea compared to those who consumed less whereas men had a three-year delay the difference male versus female potentially due to smoking habits green tea may be able to interfere with each of the stages of cancer formation if the initiation of the first cancer cell promotion into a tumor and then the subsequent progression and spread cancer is often initiated when a free radical oxidizes our DNA causing a mutation but within 40 minutes of drinking green tea you can get a nice spike in antioxidant power of your bloodstream this increase in turn made lower oxidative damage to DNA and so decrease the risk of cancer furthermore in terms of G no protective effects protecting our genes pre-existing oxidation induced DNA damage was lower after drinking green tea suggesting that can boost DNA repair as well but we didn’t know for sure until now there’s a DNA repair enzyme in our body called OG g1 and within one hour of drinking a cup of green tea we can boost its activity though after a week of tea drinking we can boost it even higher so regular intake of green tea may have additional benefits in the prevention and/or repair of DNA damage tea is so DNA protective it can be used for sperm storage for fresh samples until it can be properly refrigerated and so anti-inflammatory can be used for pain control as a mouthwash after wisdom tooth surgery and in terms of controlling cancer growth at a dose of green tea compounds that would make it into someone’s organs after drinking six cups of tea it can cause cancer cells to commit suicide apoptosis program cell death while leaving normal cells alone there’s lots of chemo agents that can kill cancer through brute force but that can make normal cells vulnerable to so green tea appears to be potentially an ideal agent for cancer prevention little or no adverse side effects efficacious for multiple cancers at achievable dose levels can be taken orally we have a sense of how it works by stopping cancer cells from growing causing them to off themselves it’s cheap and as a history of safe acceptable use but this was all based on in vitro studies in a test-tube it needs to be evaluated in human trials give people with cancer green tea to see if it helps which we’ll explore next [Music] you

12 thoughts on “Can Green Tea Help Prevent Cancer?

  1. My dog, whom I love dearly, was just diagnosed with bone cancer, and on the 13th, will have her front leg and shoulder amputated. I started her on green tea as soon as I got the diagnosis, as I drink it myself for health reasons as well as to replace coffee.

  2. Dear Dr. Greger and/or Volunteers, would you please comment on whether YERBA MATE green tea is safe to drink for vegans? I eat only plant-based foods without oil and salt, but have not given up yerba mate tea yet. In short, is it safe to drink yerba mate when it is suppose to contain elements such as potassium, magnesium, and manganese, plus a variety of polyphenols such as the flavonoids quercetin and rutin; and three xanthines: caffeine, theobromine and theophylline, the main one being caffeine, etc.?

  3. some green tea has floride in. for example a box of telly tea box has on its back that its got flouride in. i didnt beleive it till i saw myself.

  4. sir, many researches show that antioxidant can promote cancer growth. EVEN american cancer society donot recommend its consumption. why do you recommend it so strongly. please post your email id

  5. Cancer is the leading cause of death in Japan.
    Japanese drink the most green tea. Stomach cancer is 5 times higher in Japan than in the United States. Don't believe drinking green tea will prevent cancer.

  6. I found this on Life Extension July 2017 issue and thought it might be relevant.
    http://health.lifeextension.com/LECMS/Zmags.aspx?pid=69520222&source=

    In the October 1992 issue of this publication, I wrote an
    article about the cancer prevention potential of green tea
    extract. I based my article on about 100 scientific papers.
    If you search the National Library of Medicine database
    today, you’ll find over 1,000 studies relating to green
    tea and overall cancer prevention.
    In June 2005, the FDA went to considerable effort to
    publish a position paper stating:
    “…it is highly unlikely that green tea
    reduces the risk of prostate cancer.”1
    This prompted me to write a rebuttal in the November
    2005 issue of this magazine exposing flaws and omissions
    in the FDA’s report.2
    The most egregious omission was a study presented
    at the 96th American Association for Cancer Research
    Meeting, where men with premalignant prostate
    disease where given 600 mg a day of a green tea extract
    supplement or placebo. The men taking green tea
    extract were 90% less likely to progress to prostate
    cancer compared to the placebo group after
    one year.3
    While this study was relatively small, the FDA pretended
    as if this favorable data did not exist when disseminating
    their report questioning whether green tea
    had cancer protective effects.
    The FDA later attacked a maker of green tea leaves
    that dared to state on their label: “green tea may prevent
    prostate and breast cancer.”
    As reported in the July 2012 issue of this publication,
    a Federal Court ruled against FDA’s attempt to censor an
    anti-cancer claim on the box of these green tea leaves.4
    Move forward to 2017 and the totality of evidence
    supporting a role for green tea in cancer prevention has
    greatly expanded.

  7. Dr Hiromi Shinya who is the dr to the Japanese emperoal family and the most famous dr in Japan treats all his cancerpatients with a wholefood vegan diet and very alkaline. He advises against green tea because of the caffeine.

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