This is default featured slide 1 title
This is default featured slide 2 title
 

Drinking more coffee may stave off multiple sclerosis

Six cups a day linked to 31% lower risk of MS

In both studies, participants provided information about their coffee drinking.

The Swedish participants quantified their usual daily intake in cups at different ages, from 15-19 years until they were 40 years and over.

In the US study, participants gave information about their maximum daily consumption. Those who drank one or more cups also recalled at what age they started drinking coffee regularly.

Fast facts about MS

  • Around 400,000 people live with MS in the US
  • There are approximately 10,000 new diagnoses each year
  • MS mostly affects white people, and women are more prone than men.

The researchers then estimated coffee consumption at and before the onset of symptoms in those with MS, and they compared the results with those of the healthy groups.

There was a consistently higher risk of MS among those who drank fewer cups of coffee every day in both studies, even after adjusting for factors such as smoking and weight during adolescence.

In the Swedish study, coffee consumption correlated with a lower risk of MS both at the onset of symptoms and 5-10 years beforehand. Those who consumed over six cups (900 ml+) daily had a 28-30% lower risk.

The US study revealed a 26-31% reduction in risk among those who drank above 948 ml daily at least 5 years before and at the start of symptoms, compared with those who never drank coffee.

Findings indicate that the more coffee people consume, the lower their risk of MS.

The authors caution that a causative link cannot be confirmed, since this was an observational study.

‘Role of coffee warrants further investigation’

Limitations include the possibility that patients with MS changed their coffee consumption some time between receiving a diagnosis and giving the information, potentially influencing the results. Participants might also not have recalled their coffee consumption accurately.

The effects could also be due to another chemical component of coffee rather than caffeine. The team calls for further research.

Their findings support those of previous animal studies of MS, and they strengthen existing evidence that caffeine protects against neurodegenerative diseases such as Alzheimer’s and Parkinson’s disease.

In a linked editorial, Dr. Elaine Kingwell and Dr. José Maria Andreas Wijnands, of the Faculty of Medicine, University of British Columbia in Vancouver, Canada, point to inconsistencies in previous studies, but they express the hope that a better understanding of MS etiology may lead to novel MS therapies.

They write:

“Although it remains to be shown whether drinking coffee can prevent the development of MS, the results of these thorough analyses add to the growing evidence for the beneficial health effects of coffee. […] The role of coffee in the development of MS clearly warrants further investigation, as do the mechanisms that underlie the relationship.”

The researchers note that while the findings do not confirm that coffee drinking can prevent MS, they add to growing evidence that coffee may be good for health.