Man in Guangdong diagnosed with early-stage colon cancer after eating three bananas daily

Trương, a resident of Guangdong province in China, followed a neighbor's advice that bananas cleanse the intestines and ate three bananas each day for seven months. Initially he reported easier bowel movements, but his condition deteriorated, with symptoms such as cold extremities, weakness, and a white-coated tongue.

When he sought medical attention, doctors diagnosed him with early-stage colon cancer. Physicians noted that excessive banana consumption can create a “cold” condition in traditional Chinese medicine, potentially weakening the digestive system and allowing toxins to accumulate, which may have facilitated cancer development. The case highlights that, despite bananas being nutritious, they are not suitable for everyone, especially individuals with digestive disorders or kidney issues.

Health experts advise moderation: people with gastrointestinal problems, high potassium levels, or kidney disease should limit banana intake and monitor any adverse reactions.