Prostate cancer is a very destructive one indeed. But it does not escape the power of green tea, which studies have found to influence the risk of getting the disease. That is what this article is about, as well as green tea’s power against oral precancerous lesions.
The rate of prostate cancer is far lower among Chinese and Japanese people, who regularly consume green tea. Six cups a day could significantly reduce the development of prostate cancer.
In a new study from Japan, nearly 50,000 men aged 40 to 69 years were followed from 1993 until 2004. It found that green tea was associated with a decrease in the risk of advanced prostate cancer. The more cups of green tea consumed, the lower the risk. Similar results were obtained from a southeast China study, which showed that the prostate cancer risk decreased with the quantity, duration and frequency of green tea consumption.
Now, it’s well established that about 30% of men with high-grade prostate “intraepithelial neoplasia,” a tiny lesion that can occur in the prostate, will develop prostate cancer in one year. A double-blind, placebo-controlled study with 60 such patients were given three green tea catechins capsules, each containing 200 mg (total of 600 mg per day).
In 30 patients treated with green tea catechins, only one tumor was seen; whereas nine cancers were found in the 30 placebo-treated patients. This is the first study showing the preventive effect of green tea in prostate cancer.
Oral Precancerous Lesions
In this study, 59 patients with oral precancerous lesions were randomly assigned to three grams of mixed tea plus topical treatment. It showed that these precancerous lesions were significantly reduced in 38% of those treated with the tea mixture. That compares to only 10% of the placebo group.
This preliminary study provides evidence of the protective effects of tea on oral cancer.