Ashok Kumar Ashok Kumar Asked 7 months ago

Why do cancer patients lose weight?

My neighbour has cancer and I've noticed he's lost a lot of weight very quickly. It got me thinking, why do cancer patients generally tend to lose so much weight?

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5 answers

Sonia Shah Sonia Shah Joined Jun 2026 4 months ago
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Yaar, actually, it's a mix of things. The cancer itself makes the body use up energy differently, plus the treatments can cause nausea, loss of appetite, and changes in taste. So they just don't feel like eating much, or what they eat doesn't get absorbed well. It's a tough cycle.

Akash Gupta Akash Gupta Joined Jan 2026 7 months ago

Dude, it's pretty complicated. Like, the disease itself makes your body burn more calories, and then chemo messes with your appetite and digestion. So, combination of not eating enough and your body working overtime to fight the cancer. Must be super hard to keep weight on.

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Consult a radiation oncologist

Meena Sharma Meena Sharma Joined Feb 2026 7 months ago

My child also experienced this. The doctors explained that the cancer cells use a lot of the body's energy. Plus, the medicines make them feel very sick, with no appetite, nausea, and sometimes difficulty swallowing. It's heartbreaking to see, but we try to give small, high-calorie, nutritious meals.

Ravi Kapoor Ravi Kapoor Joined Mar 2026 7 months ago

It's completely normal to wonder about this, it can be quite alarming. The body fighting cancer uses up a lot of energy, and the side effects of treatments like nausea, vomiting, and loss of taste can make eating very difficult. This combination often leads to significant weight loss. It's a challenging part of their journey.

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Pooja Singh Pooja Singh Joined May 2026 5 months ago

Honestly, when I was going through treatment, it felt like my body was just constantly battling something. The cancer itself makes you lose weight, almost like it's eating you up. Plus, the nausea from chemo was so bad, I just couldn't eat. Everything tasted weird. It's a combination of the disease and the side effects.

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