Lung cancer often compromises the immune system, increasing susceptibility to foodborne infections. Patients should prioritize clean, safe, and hygienic foods, alongside a healthy diet, to support recovery, minimize fatigue, and alleviate nausea.

Unpasteurized dairy products

Lung cancer patients should avoid fresh milk and unpasteurized dairy products, as they may contain pathogenic bacteria that pasteurization typically eliminates. According to Healthline, consuming these products increases the risk of food poisoning, which can cause diarrhea, abdominal cramps, nausea, vomiting, and dehydration.

Ready-to-eat foods

Cold cuts and pre-sliced cheeses can harbor bacteria like listeria, raising the risk of infection for individuals with weakened immune systems. Cold cuts are often consumed without reheating, increasing the risk of illness if contaminated. Many processed foods also contain high levels of salt and preservatives, which are not beneficial for patients undergoing cancer treatment.

Undercooked or raw foods

Patients require sufficient protein during lung cancer treatment. However, it is advisable to limit red and processed meats, as high consumption may increase the risk of certain cancers. Meats such as beef, pork, and lamb must be thoroughly cooked before eating to reduce the risk of bacterial and parasitic infections. Healthy protein sources like chicken, fish, turkey, beans, nuts, and soy products such as tofu should be prioritized.

Lung cancer patients should also avoid soft-boiled or undercooked eggs, as they may contain salmonella bacteria. Instead, eating fully cooked eggs or using pasteurized egg products helps reduce the risk of infection while ensuring nutritional value.

Individuals with compromised immune systems may experience digestive issues from undercooked beef. Photo: Anh Chi

Raw seafood

Raw, partially cooked, or undercooked seafood can contain parasites and bacteria, negatively impacting lung cancer patients with weakened immune systems. Patients should opt for thoroughly cooked fish and shrimp to gain lean protein rich in omega-3 fatty acids, which help reduce inflammation, according to WebMD.

Spicy foods

According to EveryDay Health, chili peppers, mustard, and other spicy foods can irritate the stomach lining and cause uncomfortable burning sensations in the digestive tract. Spicy foods can also worsen mouth sores, a common side effect of lung cancer chemotherapy. To mitigate these adverse effects, patients should choose bland, easily digestible foods like mashed potatoes, rice, smoothies, yogurt, and pureed fruits.

Anh Chi (Compiled)