Title: Tea and Coffee Linked to Lower Risk of Head and Neck Cancer, Study Finds
Drinking tea and coffee may reduce the risk of head and neck cancer, according to a new study published in The Guardian. Researchers analyzed data from 14 studies across Europe, North America, and Latin America, involving 9,548 cancer patients and 15,783 control subjects. The findings suggest a protective association between these beverages and certain cancer types, although causality has not been proven.
Consuming more than four cups of caffeinated coffee per day was associated with a 17% lower global risk of head and neck cancer, particularly in the mouth cavity and oropharynx. Decaffeinated coffee also showed a reduced risk for mouth cancer. Tea consumption yielded mixed results: up to one cup per day lowered the risk by 9%, especially in the lower throat, but more than one cup was linked to a 38% higher risk of laryngeal cancer, potentially due to increased esophageal reflux.
Experts caution that while the study offers valuable insights, it has limitations. Self-reported consumption, types of beverages, and confounding variables, such as alcohol and tobacco use, could impact the results. Dr. Yuan-Chin Amy Lee from the University of Utah noted that the study highlights the potential roles of bioactive compounds, other than caffeine, in reducing cancer risk. However, Professor Tom Sanders from King’s College London warned that observational studies cannot completely eliminate external influences.
Although the findings are promising, researchers emphasize the need for further studies to confirm the protective effects of coffee and tea and explore their potential mechanisms in reducing cancer risks.
