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Why Do Cancer Patients Lose Their Appetite and What Can Help?

Cancer treatment can affect the body in many ways, and one of the most common challenges patients face is loss of appetite. Many people undergoing cancer treatment notice they no longer feel hungry, food tastes different, or eating becomes physically uncomfortable. This problem, medically known as anorexia or cancer-related appetite loss, can happen before treatment begins, during therapy, or even after treatment ends.

Loss of appetite may seem like a minor issue at first, but it can significantly affect recovery, energy levels, immunity, emotional well-being, and overall quality of life. Proper nutrition is essential for helping the body heal, tolerate treatments better, maintain strength, and reduce complications. When patients stop eating enough, they may experience rapid weight loss, fatigue, muscle weakness, and malnutrition.

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