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Weight loss with lung cancer can occur even if you're still eating normally. This happens because cancer changes how your body uses energy. The cancer cells consume glucose (sugar) for their own growth, which takes calories away from the rest of your body. This creates a negative energy balance, meaning your body is using Show Full Answer

Weight loss with lung cancer can occur even if you're still eating normally. This happens because cancer changes how your body uses energy. The cancer cells consume glucose (sugar) for their own growth, which takes calories away from the rest of your body. This creates a negative energy balance, meaning your body is using more energy than it's able to take in.

Additionally, lung cancer and its treatments can increase your body's calorie needs beyond what you may be consuming, even with a normal appetite. This can lead to a condition called cachexia, which causes significant weight and muscle loss. Cachexia can make you feel weak and tired, and may affect how well you respond to certain cancer medications. This condition can develop regardless of your eating habits and can be challenging to reverse through eating alone. If you're experiencing unexpected weight loss, it's important to discuss this with your healthcare team, as they can help develop strategies to maintain a healthy weight during treatment.

 AI-generated responses are not a substitute for medical advice. These services are not intended to diagnose, treat, or cure any condition or disease. Always ask your doctor about specific health concerns.

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