Loss of Appetite: Understanding Causes & Getting Help

What Is Loss of Appetite?

Loss of appetite means you don't feel hungry or have less desire to eat than usual. Short-term appetite changes are normal with stress, illness, or medication. However, persistent loss of appetite lasting weeks can lead to weight loss, nutritional deficiencies, and may signal an underlying medical condition.

Common Causes of Loss of Appetite

• Stress, anxiety, or depression
• Infections (cold, flu, COVID)
• Medication side effects
• Digestive conditions (gastritis, IBS)
• Thyroid disorders
• Chronic diseases or cancer

When to See a Doctor

See a doctor if loss of appetite persists for more than two weeks, causes unintended weight loss, or is accompanied by nausea, pain, fatigue, or mood changes. Seek prompt care if you have lost more than 5% of your body weight without trying.

Warning Signs That Need Immediate Attention

Frequently Asked Questions

Why have I lost my appetite?

Common reasons include stress, illness, medication side effects, and digestive problems. Depression and anxiety frequently reduce appetite. If it persists without an obvious cause, a medical evaluation can identify the reason.

Can depression cause loss of appetite?

Yes, depression commonly causes appetite changes, either decreased or increased eating. If you have lost interest in food along with other symptoms like sadness, fatigue, or withdrawal, depression may be the cause.

How can I eat when I have no appetite?

Try eating small, frequent meals instead of three large ones. Choose nutrient-dense foods you find appealing. Smoothies and soups can be easier to consume. Light exercise before meals may stimulate appetite.

When is loss of appetite serious?

Loss of appetite is serious when it causes significant weight loss, lasts more than two weeks, or accompanies other concerning symptoms. In older adults, persistent appetite loss can lead to malnutrition and should be evaluated promptly.

What doctor should I see for appetite loss?

Start with your primary care doctor who can run blood tests and assess for common causes. You may be referred to a gastroenterologist, endocrinologist, or mental health provider depending on findings.

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