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  • Lung cancer diet: Pulmonologist shares nutrition tips to improve recovery during treatment

Lung cancer diet: Pulmonologist shares nutrition tips to improve recovery during treatment

Here's how the right foods can support lung cancer patients during treatment, improve strength, manage side effects and aid overall recovery with expert nutrition advice.

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Written By: Muskan Gupta | Published : August 1, 2026 1:52 PM IST

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Medically Verified By: Dr. Robin Gupta

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Lung cancer diet (Image AI Generated)

Lung cancer is no longer an ailment that remains on the fringe of India's health discussion. According to the National Cancer Registry Program, it is estimated that by the year 2025, there will be more than 81,000 new lung cancer cases, rising from what was recorded just a decade back. The age of diagnosis for most Indians is around fifty-five years, a decade younger than what is seen in the West, and therefore, the treatment process becomes more strenuous. This phase of chemotherapy, radiotherapy, or surgical treatment sees diet play a very crucial role in how the body copes.

Why nutrition becomes non-negotiable?

According to Dr. Robin Gupta, Associate Director - Pulmonology, Paras Health Panchkula, "Cancer affects the body's energy use long before the change in appetite can be observed. Cancer-related inflammation prompts the breakdown of proteins, while the side effects caused by cancer treatment, like nausea, change of taste, and mouth sores, lead to reduced food intake."

"Indian health statistics highlight that a large percentage of newly diagnosed cancer patients exhibit signs of malnutrition before treatment begins, with indicators such as low body mass index (BMI), anemia, and low blood protein levels that can already be detected. For patients with lung cancer, this is especially important because lung dysfunction associated with cancer creates discomfort during eating and leads to a vicious cycle, where lower food intake occurs exactly when more food is required," the doctor added.

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Protein should be at the centre of every meal

One of the severe effects that malnutrition has on patients with lung cancer is cachexia, which means wasting of muscles. Retaining muscle mass helps the body's immune system function effectively, facilitates post-surgical healing, and makes the body more tolerant to chemotherapy dosages. The inclusion of dals, paneer, eggs, fish, chicken, and soy products in different forms should be included in all meals and not just the midday and evening ones.

Foods and habits to avoid during treatment

Processed and ultra-sugary foods add little nutritional value while placing extra strain on digestion during treatment. As far as alcohol and tobacco are concerned, both are important risk factors in causing lung cancer in India, among the country's approximately 100 million adult smokers, and are hence not to be included in a diet for recovery.

Personalised nutrition supports better recovery

There's no single meal plan that really fits every lung cancer patient, because tolerance shifts with whatever stage of treatment, appetite swings, and the side effects on any given week. What stays the same, though, is the need for enough protein, solid calories, and food that's kind to a weakened digestive system, not just healthy on paper.

Working with an oncology dietitian during the whole course of treatment helps these tweaks happen in real time, so nutrition becomes active support for recovery rather than an afterthought to it.

Disclaimer: The content on TheHealthSite.com is only for informational purposes. It is not at all professional medical advice. Always consult your doctor or a healthcare specialist for any questions regarding your health or a medical condition.

Muskan Gupta

Muskan Gupta

Muskan Gupta is a passionate lifestyle and health journalist with over 4 years of experience. She has worked with leading media organisations like ANI and India TV. Currently employed at TheHealthSite.com under Zee Media, she brings stories to life and covers ... Read More