A new American Cancer Society study has found Drinking four cups of coffee a day almost halves the risk of deadly mouth cancer.
The authors say people who drank more than four cups of caffeinated coffee per day were at about half the risk of death of these often fatal cancers compared to those who only occasionally or who never drank coffee. The researchers found consuming more than four cups of caffeinated coffee per day was associated with a 49% lower risk of oral/pharyngeal cancer death relative to no/occasional coffee intake.
A dose-related decline in relative risk was observed with each single cup per day consumed. The association was independent of sex, smoking status, or alcohol use. There was a suggestion of a similar link among those who drank more than two cups per day of decaffeinated coffee, although that finding was only marginally significant.
“Coffee is one of the most widely consumed beverages in the world, and contains a variety of antioxidants, polyphenols, and other biologically active compounds that may help to protect against development or progression of cancers,” said lead author Janet Hildebrand, MPH.
“Although it is less common in the US, oral/pharyngeal cancer is among the 10 most common cancers in the world. Our finding strengthens the evidence of a possible protective effect of caffeinated coffee in the etiology and/or progression of cancers of the mouth and pharynx.
“It may be of considerable interest to investigate whether coffee consumption can lead to a better prognosis after oral/pharyngeal cancer diagnosis.”