Loss of smell and depression: what to know

Smell helps food taste fuller and can trigger memories or a sense of connection. When it is reduced, meals, familiar places and everyday routines may feel less rewarding. Frustration, worry and social withdrawal can follow. Depression is a separate health condition involving persistent low mood or loss of interest, along with changes such as poor sleep, low energy, guilt or difficulty concentrating. Smell loss may occur with a cold, nasal inflammation, COVID-19 or another cause, so the two problems should be considered separately.

Arrange an assessment if the change in smell continues after a respiratory illness, keeps returning or interferes with eating and daily life. Mention your mood as well as your nose symptoms. Keep meals appealing through texture, colour and safe seasoning, and check food labels and expiry dates because smell may no longer warn you about spoiled food. Stay connected with someone you trust and keep a simple routine. Do not stop prescribed treatment without advice; a clinician can review medicines, nasal symptoms and possible causes.

Seek prompt help if low mood is persistent, you cannot manage normal activities, or sleep and appetite are changing significantly. Get urgent support if you have thoughts of harming yourself or feel unable to stay safe; contact local emergency services or go to the nearest emergency department. Seek medical attention sooner for sudden smell loss with severe headache, weakness, confusion, vision changes or a head injury.

Could a nasal condition, recent infection or medicine explain the smell change? How should my mood symptoms be assessed? Are there safety steps for cooking and food storage? When should I return if smell does not improve?