Nutrition in Palliative Care: Managing Cachexia and Loss of Appetite

Introduction

Malnutrition is a common and challenging problem in patients with advanced illness, particularly in those with cancer. Many patients experience cachexia, a complex metabolic syndrome characterized by involuntary weight loss, muscle wasting, reduced appetite, and functional decline. Unlike simple starvation, cachexia is driven by underlying disease processes and is often resistant to conventional nutritional support.

Loss of appetite (anorexia) further compounds the problem, leading to decreased oral intake, weakness, fatigue, and reduced quality of life. These changes can be distressing not only for patients but also for caregivers, who often equate eating with recovery and well-being.

In palliative care, the focus shifts from aggressive nutritional correction to a comfort-oriented, patient-centered approach. The goal is not to reverse cachexia completely, but to maximize comfort, maintain strength as much as possible, and respect patient preferences. Gentle nutritional support, symptom control, and emotional reassurance play a crucial role in managing these patients.

What is Cachexia? – Cachexia is a complex metabolic syndrome seen in patients with advanced illness, especially cancer. It is characterized by ongoing loss of weight, particularly muscle mass, which cannot be fully reversed by normal nutritional intake.

Cachexia develops due to a combination of:

1. Inflammation

The disease causes release of inflammatory substances (cytokines)
These increase breakdown of muscle and fat

2. Metabolic Changes

Body enters a hypermetabolic state
Increased energy expenditure even at rest

3. Reduced Intake

Loss of appetite
Early satiety (feeling full quickly)

4. Hormonal Changes

Altered regulation of hunger and metabolism

Anorexia–Cachexia Syndrome (ACS) is a multifactorial condition seen in advanced illness, especially cancer, characterized by:

Loss of appetite (anorexia)
Progressive weight loss
Muscle wasting (cachexia)
Fatigue and functional decline

Cachexia vs Starvation – Both are different

Feature	Cachexia	Starvation
Cause	Disease-driven	Lack of food
Muscle loss	Severe	Less severe initially
Response to nutrition	Poor	Improves with feeding
Metabolism	Increased	Decreased

How Anorexia Affects Patients and Families

Patients may feel:
- Weak
- Tired
- Disinterested in food
Families may feel:
- Worried ("patient is not eating")
- Guilty or helpless
- Desire to "force feeding"

Management of Anorexia–Cachexia Syndrome (ACS) in Palliative Care

Principles of Management

Focus on comfort, not weight gain
Individualize treatment based on patient condition
Avoid force feeding
Respect patient preferences
Provide family counseling and reassurance

Nutritional Strategies

Offer small, frequent meals
Use high-calorie, high-protein foods
Encourage favorite foods (no strict diet rules)
Provide nutritional supplements if tolerated
Use soft or liquid diet if chewing/swallowing is difficult

Goal: Pleasure and comfort in eating

Management of Reversible Causes - treat the reversible cause of anorexia if any, such as nausea, vomiting, constipation, diarrhoea, pain, dryness of mouth, oral ulcer, mucositis accordingly

Pharmacological Management

Megestrol acetate
- Appetite stimulant
- Improves weight (mainly fat)
Corticosteroids (e.g., dexamethasone)
- Short-term appetite improvement
- Improves sense of well-being
Mirtazapine
- Useful in depression + appetite loss
Prokinetics (e.g., metoclopramide)
- Helpful in early satiety

Non-Pharmacological Management

Improve meal environment (pleasant, relaxed)
Encourage family involvement
Avoid pressure to eat
Provide emotional reassurance

Family Counselling

Explain that loss of appetite is part of disease process
Reassure: “Not eating does not mean suffering”

Encourage family to:
- Offer food,not force it
- Focus on comfort and presence
Address emotional distress and guilt

Anorexia–Cachexia Syndrome is not just a nutritional problem—it is a disease-driven process requiring holistic palliative care.

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