10th Edition – June 2014

Welcome to the latest edition of the Coffee & Health quarterly news bulletin. Below you will find information on the latest published research, topic updates and new information resources.

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Expert Comment: Susanna Lindvall from European Parkinson’s Disease Association

In April, we marked World Parkinson’s Day with a research round-up of the most recent research on coffee and Parkinson’s disease. The European Parkinson’s Disease Association (EPDA) shared this research with its community through the website, Facebook and Twitter. Susanna Lindvall, Vice-President of the EPDA, shares her thoughts on possible explanations for the negative association between coffee and Parkinson’s disease.
To view the full comment piece by Susanna Lindvall, please click here.


To keep our resources up-to-date, we continually add new content to the Coffee & Health website. This quarter, we created a new topic, Coffee & Gastrointestinal Function. This included a myth-buster examining some common misconceptions around coffee and digestive health.
To view the new topic, Coffee & Gastrointestinal Function, click here.
To view the myth-buster, click here.


We regularly publish abstracts of the latest research papers on coffee and health, so you can see at a glance what's new in this area. If you haven’t had the chance to catch up with the latest research, you can find these on the Coffee & Health website. You can now also view these abstracts by topic, as well as by date.

Recent studies published include:

Coffee consumption and colorectal cancer
This large-scale population-based cohort study showed that coffee consumption increases the risk of colon cancer among Japanese men.

Yamada H. et al. (2014) Coffee Consumption and Risk of Colorectal Cancer: The Japan Collaborative Cohort Study. Journal of Epidemiology, published online ahead of print.

For more information on coffee and colorectal cancer, please click here.

Coffee and risk of fracture
A cohort study of Swedish men showed that high coffee consumption was not associated with an increased risk of fractures.

Hallstrom H. et al. (2014) Coffee Consumption and Risk of Fracture in the Cohort of Swedish Men (COSM). PLoS One, published online ahead of print.

For more information on caffeine and bone health, please click here.

Caffeine, coffee and metabolic syndrome
A cross-sectional survey of inhabitants from Sicily found no direct association between caffeine intake and metabolic syndrome, however coffee and tea consumption was significantly related to reduced risk of developing metabolic syndrome.

Rosso G. et al. (2014) Factors associated with metabolic syndrome in a Mediterranean population: role of caffeinated beverages. Journal of Epidemiology, published online ahead of print.

For more information on coffee and cardiovascular health, please click here and for more information on diabetes, please click here.

Coffee, tea and rheumatoid arthritis
This meta-analysis suggests that high coffee consumption is associated with an elevated risk of rheumatoid arthritis development; this association was not found with tea intake.

Lee Y. H. et al. (2014) Coffee and tea consumption and the risk of rheumatoid arthritis: a meta-analysis. Clinical Rheumatology, published online ahead of print.

For more information on caffeine and bone health, please click here.

Coffee and diabetes
In a sample of over 7,000, researchers found that participants who increased their coffee consumption by more than one cup per day over a four year period had an 11% lower risk of developing type 2 diabetes.

Bhupathiraju S. N. et al. (2014) Changes in coffee intake and subsequent risk of type 2 diabetes: three large cohorts of US men and women. Diabetologia, published online ahead of print.

For more information on coffee and type 2 diabetes, please click here.

Coffee and hepatitis
A prospective population-based cohort of over 63,000 middle-aged and older Chinese subjects found that, compared to non-daily coffee drinkers, those who drank two or more cups of coffee per day had a 66% reduction in mortality risk from non-viral hepatitis.

Goh G. B. et al. (2014) Coffee, alcohol and other beverages in relation to cirrhosis mortality: the Singapore Chinese Health Study. Hepatology, published online ahead of print.

For more information on coffee and liver function, please click here.

Coffee, tea, sweetened beverages and depression
Using long-term data from the NIH-AARP Diet and Health Study, researchers concluded that drinking coffee or tea without any sweetener was associated with a lower risk of depression, whereas adding artificial sweetener was associated with higher risks. It was also found that coffee consumption may lower the risk of depression.

Guo X. et al. (2014) Sweetened Beverages, Coffee, and Tea and Depression Risk among Older US Adults. PLOS One, published online ahead of print.

For more information on caffeine and mood, please click here.

Caffeine and cognitive function
This double-blind placebo-controlled experiment revealed that caffeine has an impact on complex decision making in individuals. Results showed that fewer options are generated in real-life decision-making situations when caffeine has been consumed, but these options are generated much faster by caffeine consumers than by those who have not consumed caffeine.

Hausser J. A. et al. (2014) The effects of caffeine on option generation and subsequent choice. Psychopharmacology, published online ahead of print.

For more information on caffeine and mental performance, please click here.

Caffeine and heart function
Six prospective cohort studies were analysed and results showed that it is unlikely that caffeine consumption causes or contributes to atrial fibrillation incidence. Habitual caffeine consumption may even reduce the incidence of atrial fibrillation.

Cheng M. et al. (2014) Caffeine Intake and Atrial Fibrillation Incidence: Dose Response Meta-analysis of Prospective Cohort Studies. Canadian Journal of Cardiology, Volume 30.

For more information on coffee and cardiovascular health please click here.


Coffee is always a popular topic of interest in the media. We’ve collated media highlights from the last quarter which feature coffee research. In many cases, these stories reference a single new study or review. Where available, please follow the links to relevant sections on the Coffee & Health website.

Coffee and sports performance
A new report from the British Coffee Association showed that participants who consumed two cups of coffee prior to exercise were able to work out for 30% longer. Caffeine has also been found to improve endurance and performance in high intensity sports such as cycling, football and running. Coverage of this story includes Daily Express, MailOnline and Female First.

Coffee consumption and tooth decay
Researchers from Brazil tested teeth with an extract from Coffea canephora, a common type of coffee bean. Results showed the coffee actively broke down bacterial biofilms which cause dental plaques, a major cause of tooth decay. This story was covered by The Australian, Daily Telegraph and The Independent.

Coffee and retinal degeneration
A study from Cornell University has revealed that drinking coffee may protect against deteriorating eyesight and blindness. This was covered by media outlets worldwide, including: Huffington Post, Daily Mail, Medical News Today and CBS News.

Coffee and diabetes
A recent study has found that increasing coffee consumption by an average of one and a half cups per day reduces an individual’s risk of developing type 2 diabetes by 11%. Researchers state that coffee drinkers who consume more than three cups a day cut their type 2 diabetes risk by 37%. On the other hand, those who decreased their intake by one cup a day or more had a 17% higher risk of getting diabetes. This story was covered, amongst others, by the New York Times, Daily Telegraph, French Tribune and Los Angeles Times.
For more information on coffee and type 2 diabetes, please click here.

Coffee and liver cancer
Results presented at April’s annual American Association for Cancer Research meeting, showed that the more cups of coffee a person drank, the lower the risk for developing hepatocellular carcinoma – the most common type of liver cancer. Researchers found those who consumed three cups per day have a 29% reduction in their risk of developing HCC and those who consumed four or more cups had a 42% risk reduction. Worldwide coverage of this story included Health Canal, The Scientist and Los Angeles Times.
For more information on coffee and liver function, please click here.


We upload new content to the Coffee & Health website on a continuous basis. In this coming quarter we will be updating our Coffee and Mental Performance topic. Keep an eye on the website for the new materials.


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