What should you know about chronic loss of appetite?

Reduced appetite may accompany an infection such as [Influenza](/conditions/influenza/), [COVID-19](/conditions/covid-19/), or [Gastroenteritis](/conditions/gastroenteritis/). Ongoing nausea, pain, reflux, or early fullness can occur with [Gastritis](/conditions/gastritis/) or a [Peptic Ulcer](/conditions/peptic-ulcer/). Low mood can also reduce interest in food; [Depression](/conditions/depression/) is one possible contributor. Less commonly, persistent appetite loss forms part of a more serious illness, so the wider pattern matters.

A clinician may ask about eating habits, swallowing, pain, bowel changes, medicines, mood, fever, and weight change. Examination and targeted tests depend on your symptoms. The goal is to identify a treatable cause and prevent dehydration or poor nutrition.

Arrange a medical review if appetite remains low or meals are becoming difficult. Until then, try small frequent meals, nourishing snacks, and fluids that you tolerate. Choose familiar foods with protein and energy, and keep a simple record of what you manage to eat and drink. Do not start supplements or stop prescribed medicines without advice. Ask for help from someone you trust if shopping or cooking has become hard.

Seek urgent help for severe abdominal pain, vomiting blood, black stools, confusion, fainting, or inability to keep fluids down. Contact a clinician promptly for ongoing vomiting, yellowing of the skin, marked weakness, persistent fever, or unplanned weight loss. Appetite loss with new mood symptoms or thoughts of self-harm needs immediate support.

Could my medicines or mood be affecting appetite? Do my symptoms suggest a digestive problem or infection? Do I need blood tests or imaging? How can I maintain nutrition safely? What changes should prompt urgent review?