Green tea can prevent prostate cancer, new study says

A study conducted by Indian scientists proves that ingesting extracts from green tea helps prevent prostate cancer in men who have a high risk of developing the illness.

The research was conducted and led by Nagi Kumar from Moffitt Cancer Center in the U.S. The results of the study helped him prove the positive effects of the active components in green tea and how they prevent the formation of sarcoma’s in men with pre-malignant lesions.

Capsules, which contained decaffeinated green tea called Polyphenon E were given as medication. Mixed medication of green tea and catechines were administered to the prostate cancer patients twice a day. Catechines are natural phenols and antioxidants, which is a secondary plant metabolite.

Many laboratory analyses conducted on the benefits of catechines have supported its positive effects upon cancer patients, proving that they have the power to inhibit the growth and proliferation of cancer cells.

The study was conducted on 49 male subjects who were given Polyphenon E and another 48 male subjects that were given a placebo pill for a trial period of one year.

The results of the one year treatment stated that the 49 male subjects that were treated with green tea extracts (Polyphenon E) showed an enormous decrease in PSA (prostate-specific antigen) levels.

PSA is widely used as a bio-marker that is calculated with risk factors while screening males with this type of cancer. An increase in PSA levels indicates a greater risk of developing prostate cancer.

Previous studies conducted on animals showed the cancer fighting effects of catechines.

Green tea originates from China and 20% of the world’s green tea is consumed in Asia. Statistics in 2014 have shown that Asia has the lowest prostate cancer rates in the world.

Prostate cancer is the second most common cancer in the world and the cause of deaths among many men. The American Cancer Society stated that the development of prostate cancer increases above the age of 65 among men. Researchers state that green tea should be a daily beverage among men, which active compounds have proven to destroy cancer cells in a test tube. Green tea also contains compounds that block the action of enzymes that help prostate cancer cells proliferate.

This study is published in the journal Cancer Prevention Research and will be presented at the 2015 American Society of Clinical Oncology (ASCO) Annual Meeting in Chicago on June 1.