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Monthly 3D Poll

2011-05-12

Coffee May Inhibit Some Breast Cancers


This stereogram has two dots to help see the image. Shift your gaze
until you see the two dots become three, then look at the image.
I think that swirly thing is suppose to be steam.
I recently covered a study on coffee repairing DNA damage and aiding in body composition, and another one on chronic fatigue.

Coffee is one of the most popular beverages in the world. The latest coffee trade statistics estimated that world coffee production amounted to 7.4 billion kg in 2009/2010.

Now a new study adds some clarity coffee's breast cancer link. Breast cancer is a complex disease and may be sub-divided into hormone-responsive (estrogen receptor (ER) positive) and non-hormone-responsive subtypes (ER-negative).

The researchers say, "coffee is interesting in the light of breast cancer aetiology because of its complex make-up of chemicals, several of which have been shown in experimental studies to have cancer risk altering potential through meaningful biological mechanisms. The scientific community, however, stands divided over toxicity of the beverage. It has been demonstrated in experimental and clinical studies that coffee, being a complex mixture of caffeine and polyphenols, can play a dual role as both a carcinogen...and a chemo-preventive agent with anti-oxidative...properties."

The bulk of previous studies suggest that high coffee consumption is associated with a modest reduction of breast cancer risk, although a meta-meta-analysis of over 500 papers relating the consumption of coffee to various cancers reported a null association with breast cancer risk. So these researches attempted to add to our knowledge base on this subject.

This study was done in Sweden, where coffee consumption is among the highest in the world, with a median of three cups per person per day.

Again, making a long story short...the authors conclude, "we found no evidence that coffee consumption increases the overall risk of postmenopausal breast cancer. However, a high daily intake [5 cups daily] of coffee was found to be associated with a significant decrease in ER-negative breast cancer among postmenopausal women."

Considering that 1% of breast cancers are found in men, looks like I may need to up my daily coffee consumption. 5 cups?! That's gonna be tough...

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