If you take certain medications and enjoy grapefruits, you could be indulging in a deadly mix.

Canadian researchers have found 85 drugs to have serious side effects or even cause sudden death when interacted with the citrus fruit, which is primarily known for its vitamin C benefits.  

Scientist say grapefruits contain a chemical that can accelerate or block the effects of certain drugs, even when consumed hours before taking specified pills. People who take commonly prescribed drugs like Lipitor, Zocor, Plavix and Oxycodone face the biggest risk.

Researchers are concerned that health care providers may not be aware of the potential risk.  

The Study was led by researchers at Lawson Health Research Institute and is published in Canadian Medical Association Journal.