How common is unintentional weight loss in depression?

Depression can reduce appetite, enjoyment of food, motivation to shop or cook, and energy for regular meals. Some people lose weight while others gain weight, and appetite may change alongside low mood, loss of interest, poor sleep, slowed thinking or difficulty concentrating. Physical conditions, digestive problems and medicine side effects can look similar. A clinician should consider the whole pattern rather than attributing weight loss to mood alone.

Make an appointment if weight is falling without trying, meals are becoming difficult or low mood is affecting daily life. Tell the clinician about appetite, sleep, mood, medicines, alcohol or drug use and any physical symptoms. Small regular meals, easy-to-prepare foods and support from someone you trust may help while you arrange care. Do not stop prescribed treatment without discussing side effects.

Seek urgent help if you might harm yourself, cannot stay safe, are severely confused or cannot keep fluids down. Contact a clinician promptly when weight loss continues, you are struggling with basic daily tasks or you have very little food or fluid intake. If possible, tell a trusted person how you are feeling and ask them to stay with you during a crisis.

Ask whether depression, a physical condition or a medicine could be contributing to the weight change. Discuss treatment choices, nutrition support, warning signs to monitor and who to contact if your mood or safety worsens.