The C.A.M. Report
Complementary and Alternative Medicine: Fair, Balanced, and to the Point
  • About this web log

    This blog ran from 2006 to 2016 and was intended as an objective and dispassionate source of information on the latest CAM research. Since my background is in pharmacy and allopathic medicine, I view all CAM as advancing through the development pipeline to eventually become integrated into mainstream medical practice. Some will succeed while others fail. But all are treated fairly here.

  • About the author

    John Russo, Jr., PharmD, is president of The MedCom Resource, Inc. Previously, he was senior vice president of medical communications at, a complementary and alternative medicine website.

  • Common sense considerations

    The material on this weblog is for informational purposes. It is not medical advice or counsel. Be smart, consult your health professional before using CAM.

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    Green tea capsules to treat cold and flu symptoms

    Researchers from the University of Florida at Gainesville report it’s a safe and effective dietary supplement to reduce your risk of cold and flu symptoms.

    And there’s more.

    First, the details.

    • Healthy adults were randomly assigned to take Camellia sinensis (green tea) capsules or a placebo twice a day for 3 months.
    • The volunteers kept a daily log of cold and flu symptoms including fever, runny nose, stuffy nose, sore throat, cough, headache, diarrhea, and nausea.
    • Neither the adults nor the researchers knew which treatment they were given.

    And, the results.

    Among subjects taking the green tea capsules?

    • 32% fewer people with symptoms
    • 23% fewer overall illnesses of at least 2 days duration
    • 36% fewer days with symptom
    • These differences were significant compared to those taking placebo.
    • Also, gamma-delta T cells from those taking the green tea extract increased 28%.
    • And they secreted 26% more gamma interferon compared to the gamma-delta T cells from the volunteers taking placebo.
    • Again, significant differences.

    The bottom line?
    In addition to symptom control, this product might help gamma delta T cells generate a primary immune response to certain microorganisms.

    Dr. Melissa McCarty from Bastyr University in Seattle, Washington says that in addition to all the other recommendations, “you might also consider drinking a lot of green tea — or supplementing with a green tea extract, such as the one used in this study.”

    12/5/07 20:47 JR

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