Clinical nutrition approach to colon cancer

Colon cancer is a type of cancer that affects the large intestine or rectum, with risk increasing with age. It typically shows no symptoms in its early stages and is often diagnosed in advanced stages, where treatment options are limited. In 2020, there were approximately 1.9 million new colorectal cancer cases and over 930,000 deaths worldwide. Colorectal cancer is the third most common cancer globally and the second leading cause of cancer-related deaths. Colon polyps are precancerous lesions identified through colonoscopy. The size, surface structure, and number of polyps are associated with the risk of colon cancer. Colonoscopy is an effective method for detecting and removing adenomatous polyps, thus preventing death from colorectal cancer. The treatment of colon cancer, including surgery and other methods, can lead to various metabolic and digestive complications. Nutrition plays a crucial role in cancer treatment and prevention. A balanced diet can improve treatment outcomes and quality of life. Nutritional support is essential alongside surgical or pharmacological treatments. Oral Nutritional Supplements (ONS) are recommended for cancer patients with inadequate oral intake. Studies have shown that nutritional supplementation before and after surgery can improve recovery and walking capacity in colorectal cancer patients. Enteral Nutrition (EN) is used to provide essential nutrients in individuals with insufficient oral intake. It is recommended postoperatively as soon as the gastrointestinal tract is active, reducing complications and improving recovery. Parenteral Nutrition (PN) is crucial when oral or enteral nutrition is not feasible. PN, particularly Total Parenteral Nutrition (TPN), is beneficial in severely malnourished patients and those undergoing major surgery, reducing infection risk and improving overall nutritional status. In conclusion, the effective use of enteral and parenteral nutrition strategies in colon cancer treatment improves patients' quality of life and increases treatment success rates. Integrating nutritional therapy into cancer treatment protocols is of great importance.