How does smoking affect a healthy gastrointestinal system?


Smoking may adversely affect all parts of an otherwise healthy gastrointestinal (GI) system. Smoking may contribute to acid reflux disease and heartburn because of increased pressure on the passage between the stomach and the esophagus.

Smoking may increase acid secretion and decrease pancreatic secretion, resulting in stomach disorders. Smoking may aggravate or contribute to development of peptic ulcers. If individuals who already have ulcers continue to smoke, the ulcers may never heal.

Smoking may interfere with the liver's functioning. Smoking damages the liver, and so the liver cannot metabolize medications and toxins effectively.

By smoking, an individual may also increase risk of cancer, inflammatory bowel diseases, and Crohn's disease.

Continue Learning about Digestive Health

Digestive Health

Digestive Health

The digestive system includes all parts of the body that process food and expel waste, from your mouth to the end of your digestive tract. Diseases of the gastrointestinal tract prevent your body from effectively using the food yo...

u eat. Learn more about digestive health from our experts.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.