Caffeine in Coffee May Offer Antioxidant Benefits

The antioxidants found in beverages and foods that contain caffeine seem to protect people against the development of Alzheimer’s disease and heart disease.

In a study published in The Journal of Physical Chemistry B researchers describe how coffee can be on the greatest sources of antioxidants in the modern diet.  Scientists do not know exactly how coffee helps to fight the free radicals that can be destructive to eye health and overall health.  At this point, they are speculating that caffeine is the agent responsible for coffee antioxidant properties.

These findings are actually in direct opposition to our usual recommendations for people who suffer from eye conditions related to the presence of free radicals including macular degeneration and glaucoma.  More research is necessary to determine whether the benefits of caffeine outweigh its negative effects.


But, Too Much Coffee …

Five or more cups of coffee per day may cause an individual to hallucinate.

A study out of Australia’s La Trobe University looked at the roles that caffeine and stress play on instances of auditory hallucinations.  Participants who were under stress and under the effect of high levels of caffeine listened to white noise and were asked to indicate when they heard Bing Crosby sing “White Christmas.”  Those reporting highest stress and caffeine levels were much more likely to report hearing the song (which was never played) than were those with low stress and caffeine levels.

‘It is apparent that the health risks of excessive caffeine use must be addressed and caution should be raised with regards to the exacerbating use of this stimulant,’ says Professor Simon Crowe.

We caution clients and patients against consuming coffee and other sources of caffeine if they are concerned about eye conditions including diabetic retinopathy, glaucoma, and dry eyes.