Dr. Ngo Van Ty from the Department of Oncology at Hanoi Medical University Hospital advises against colon cleansing for rapid weight loss, citing a lack of scientific evidence and potential health risks.

The human body naturally detoxifies itself. Organs such as the liver, kidneys, lungs, and intestines work daily to eliminate waste. For healthy individuals, there is no reliable scientific evidence to suggest that colon cleansing aids in "detoxification" or sustainable weight loss. While some people believe colon cleansing can reduce bloating, create a feeling of lightness, and facilitate bowel movements, these effects are primarily due to the temporary emptying of the bowel, not the removal of "toxins."

Performing colon cleansing at home without medical supervision carries significant risks. It can lead to dehydration and electrolyte imbalance, which is particularly dangerous for individuals with heart or kidney conditions. Many users experience damage to the intestinal lining, infections, and even dependence as the bowel's natural reflex for defecation diminishes. This practice can also worsen existing conditions like hemorrhoids and colitis.

Major digestive associations, including the American Gastroenterological Association and the Mayo Clinic, do not recommend routine colon cleansing for "detoxification" in healthy people.

A colon cleansing kit for rapid weight loss. Photo: Ngoc Minh.

For healthy weight loss and overall well-being, focus on a balanced lifestyle. Ensure you drink sufficient water, about 1,5–2 liters daily, and increase your intake of green vegetables, fruits, and fiber-rich foods, aiming for 25–30g per day. It is also advisable to reduce alcohol consumption and fried foods. Incorporate light physical activity for 30 minutes daily and prioritize getting adequate sleep.

If you experience genuine constipation, consult a doctor for advice on using soluble fiber, such as psyllium, or mild laxatives. Seek medical attention if constipation persists for more than two weeks, or if you experience severe abdominal pain, bloody stools, or unexplained weight loss. Do not attempt self-administered enemas at home in these situations.

Dr. Ngo Van Ty

Department of Oncology, Hanoi Medical University Hospital