When should loss of appetite prompt medical assessment?
Appetite can temporarily fall during illness, stress or medication use, or because of mouth, swallowing or digestive problems. Persistent appetite loss or unintended weight loss needs assessment. An appetite stimulant should not replace finding the cause.
Details
Prepare useful information
Track food, fluids, weight changes, nausea, pain, early fullness and swallowing difficulty. Mention mood and new medicines. Appetite loss alone does not mean cancer, but persistent symptoms should not be ignored.
Support nutrition during assessment
Small frequent meals and suitable nutritious foods may help, alongside treatment of dental problems or nausea when indicated. Swallowing difficulty needs assessment rather than dietary changes alone. Do not force-feed a child or older person.
When help is urgent
Inability to drink, repeated vomiting, reduced urine or dizziness needs prompt review. Severe pain, bleeding or confusion requires urgent care. Nutritional support depends on age and illness; a dietitian may help tailor it.
Related reading: What causes persistent fatigue despite sleep, and when are tests needed?.