Dr. Liao Ji-ding, a well-known oncologist, recently warned on his YouTube channel that three popular beverages commonly seen as healthy may actually increase cancer risk when consumed daily over the long term. He shared a case involving a woman in her 40s who developed cancer despite maintaining what she believed was a healthy routine, including drinking fresh juice every day.
He explained that the issue often lies in what he calls “pseudo-healthy” drink choices—options people assume are harmless or beneficial but may contribute to chronic inflammation and cellular damage over time.
First on his list is freshly squeezed fruit juice. Even as many drink it to boost vitamin intake, Dr. Liao pointed out that juicing removes fiber, which normally slows sugar absorption. Without it, fructose enters the bloodstream rapidly, causing sharp spikes in blood glucose. He noted that eating three whole apples provides a feeling of fullness, but drinking the juice from those same apples takes only seconds—leading to excessive calorie intake. Over time, this pattern can contribute to fatty liver disease and a chronic inflammatory environment, conditions he said are ideal for cancer cell growth.
Second, he cautioned against regularly consuming very hot beverages, such as tea, coffee, or soup, especially those above 65 degrees Celsius (149°F). Citing the International Agency for Research on Cancer (IARC), he stated that drinking liquids at this temperature repeatedly damages the esophageal lining. While the body attempts to repair the injury, constant cycles of injury and healing increase the likelihood of errors in cell repair—potentially leading to malignant changes. His advice: if you want a hot drink, wait a couple of minutes before consuming it.
Third, Dr. Liao addressed alcohol, including red wine, which is often promoted for heart health. He rejected the idea that alcohol has any protective benefit, emphasizing that IARC classifies ethanol as a Group 1 carcinogen—meaning there is strong evidence it causes cancer in humans. He noted that research shows a clear link between alcohol consumption and increased risk of oral, liver and breast cancers, with no safe threshold identified. “Alcohol is not a health choice,” he said. “It is a risk.”
These warnings highlight how everyday habits, even those rooted in wellness intentions, can have unintended long-term consequences. For individuals aiming to reduce cancer risk, re-evaluating seemingly healthy drink choices may be an important preventive step.
