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Alcohol consumption has long been associated with liver cirrhosis and cancer, but medical experts are now emphasizing that its dangers extend far beyond. Recent research highlights that alcohol significantly increases the risk of multiple cancers, with no safe level of consumption.
According to the U.S. government’s dietary guidelines, alcohol is classified as a Group I carcinogen—placing it in the same category as tobacco and asbestos. Strong scientific evidence links alcohol consumption to cancers of the mouth, throat, esophagus, stomach, breast, pancreas, colon, and rectum.
Dr. Sriniket Mohan Raghavan, Consultant – Surgical Oncology at Manipal Hospital, New Delhi, explains the biological mechanism behind this risk: “Alcohol breaks down into acetaldehyde, a toxic compound that damages DNA and disrupts cell repair, leading to cancer. It also causes oxidative stress, hormonal imbalances, and increases the body’s absorption of carcinogens.”
A frequently overlooked risk is alcohol’s direct link to mouth cancer. Dr. Deepak Sarin, Vice Chairman, Head & Neck Cancer at Medanta, Gurugram, highlights this concern: “While alcohol’s link to tobacco-related cancers is well known, its direct role in mouth cancer is often ignored. Even without tobacco, heavy alcohol consumption increases the risk sixfold.”
The National Cancer Institute reports that moderate drinking raises the risk of colon and rectal cancer by up to 1.5 times. Additionally, studies suggest that women who consume alcohol face a 30-50% higher risk of breast cancer.
“No amount of alcohol is truly safe when it comes to cancer,” warns Dr. Sarin. “For those treated for mouth cancer, continuing to drink doubles the risk of recurrence.”
Leading oncologists stress the importance of recognizing alcohol as a serious cancer risk. They advocate reducing or eliminating alcohol consumption as a crucial step in cancer prevention.
Disclaimer: This article is for informational purposes only and should not be considered medical advice. Please consult a healthcare professional for guidance on alcohol consumption and cancer risks.
