Loss of Appetite

Relevant specialty: General Internal Medicine (GP)

A temporarily reduced appetite is common and usually harmless, for example during an infection, due to stress, or after a heavy meal. However, if the loss of appetite persists for a longer time or is accompanied by unintended weight loss, the cause should be investigated. It is important to continue eating and drinking in a balanced and sufficient way.

Possible causes

01

Temporary Triggers

Infections, stress, excitement, or a heavy meal can temporarily suppress appetite. Usually it returns to normal on its own.

02

Emotional Distress

Persistent worries, low mood, or tension can significantly reduce the feeling of hunger. The connection often only becomes clear during a consultation.

03

Digestive Problems

Complaints in the gastrointestinal area such as feeling of fullness or nausea can reduce appetite. Changes in taste sometimes also play a role.

Abdomen & Digestion

Typical steps at the doctor's office

  1. 1During the consultation, you will be asked about the duration, accompanying symptoms, weight history, and your emotional state.
  2. 2Your abdomen will be examined and your general condition assessed to help narrow down possible causes.
  3. 3In cases of persistent loss of appetite, blood tests may provide further clues.

What you can do yourself

  • Spread several small, attractively presented meals throughout the day.
  • Make sure you drink enough fluids, even if your appetite is low.
  • Choose favorite foods and easily digestible meals to make eating easier.
  • Exercise in the fresh air can stimulate the feeling of hunger.
When a doctor's visit makes sense

If loss of appetite persists over a longer period or if unintentional weight loss occurs, it is advisable to have it checked at your general practice. Even when emotional distress is prominent, a medical consultation can help.

Abdomen & Digestion

Frequently asked questions

At what point should I take loss of appetite seriously?
If it persists for several weeks or is accompanied by unintentional weight loss, the cause should be medically investigated.
How can I eat well despite having little appetite?
Small, frequent meals, favorite foods, and sufficient fluids help to nourish your body well despite low appetite.
Next step

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Editorial content · as of 9/5/2026

Based on recognised Swiss specialist sources — including the FOPH and the Federal Commission for Vaccination Issues, medical societies and university hospitals.