By Leili Najmabadi
Though previous research in 2012 had shown that coffee could have a positive effect on symptoms related to movement in patients with Parkinson’s disease, a recent study found that there is in fact no effect at all. In the 2017 study, one group of participants was given 200 mg caffeine capsules and the other group of participants was given a placebo capsule, both capsules to be taken twice a day. Participants in this study were followed for an extended amount of time compared to the 2012 study, from six to eighteen months. Contrary to the 2012 study which stated that caffeine had the potential to reduce Parkinson’s disease movement symptoms, the current study found no improvement and no difference in quality of life between the two groups. Both studies were conducted by the medical journal of the American Academy of Neurology. Discrepancies between the two studies highlight the importance of limitations in research, such as the length of the study and measuring other factors, such as measuring the amount of caffeine in the blood.
American Academy of Neurology. (2017, September 27). That cup of coffee may not relieve Parkinson's symptoms. ScienceDaily. Retrieved October 7, 2017 from www.sciencedaily.com/releases/2017/09/170927162043.htm