Understanding Appetite Loss in Advanced Illness

Specialist Palliative Care

Patient Information Leaflet

Why Appetite Reduces

As illness advances, the body begins to slow down and conserve energy. Organs that digest and process food work less efficiently, and the brain’s hunger signals naturally reduce.

Inflammation from serious illness can release chemicals known as cytokines, which can ‘switch off’ the hunger centre in the brain. Muscles may break down, and the body becomes less efficient at using energy — a process sometimes known as cachexia. This cannot be reversed by eating more; it is part of the natural changes seen in advanced illness.

Other reasons appetite may reduce:

• The body needs less energy as it slows down.
• Digestion becomes slower and large meals are harder to tolerate.
• Symptoms such as nausea, pain, taste changes, constipation, or breathlessness may reduce appetite.
• Fatigue and weakness can make eating feel like an effort.

What this Means

It’s normal for someone to eat only small amounts or to stop wanting food altogether. Their body is no longer able to process large meals, and trying to push food can lead to nausea or discomfort and make eating feel like a burden to the patient.

Reduced appetite does not mean someone is ‘starving’ — it is a sign that the body is conserving energy as part of the natural process of illness progression.

What Can Help

• Offer small portions of favourite foods or soft, easy meals
• Encourage regular sips of fluid rather than large drinks
• Keep mealtimes relaxed and pressure‑free
• Focus on the enjoyment and pleasure of eating rather than the amount eaten
• Reassure family members that reduced appetite is natural and expected

Support for Carers

It can be very difficult to see someone you love eating very little. Try not to judge their wellbeing by how much they eat or drink.

You can support them by:

• Offering small, tempting foods if they wish, but not forcing them
• Spending time together; gentle presence and reassurance can be more comforting than food at this stage
• Providing regular mouth care to keep the mouth clean, moist, and comfortable
• Asking your community nurse, GP, or palliative care team for advice if nausea, distress, or discomfort continues

Remember: appetite loss is a normal part of the body slowing down and does not cause suffering.

Key Points

🍽️ Appetite naturally falls as the body slows down

💤 Less energy needed → less hunger

💧 Small, frequent sips help maintain comfort

❤️ Comfort matters more than calories

References for Further Reading

• British Dietetic Association (BDA). ‘Nutrition and Appetite in Advanced Illness’ (2023)
• Marie Curie. ‘Loss of Appetite in Terminal Illness’ (2022)
• NICE Guidelines NG31: Care of Dying Adults in the Last Days of Life (2015)
• Macmillan Cancer Support. ‘Understanding Appetite Loss in Cancer’ (2023)
• ESPEN Guidelines on Nutrition in Cancer (2021)

If you have any questions, or if there is anything you do not understand, please contact the Russells Hall Hospital switchboard number on 01384 456111 and ask for the relevant department who issued this leaflet.

If you have any feedback on this patient information leaflet please email dgft.patient.information@nhs.net

This leaflet can be made available in large print, audio version and in other languages, please call 0800 073 0510.

Originator: Specialist Palliative Care Date originated: February 2026  Review date: January 2029. Version: 1.0  DGH ref: DGH/PIL/02179