Appetite - decreased
A decreased appetite is when your desire to eat is reduced. The medical term for a loss of appetite is anorexia.
Considerations
Any illness can reduce appetite. If the illness is treatable, the appetite should return when the condition is cured.
Loss of appetite can cause weight loss.
Weight loss
Unexplained weight loss is a decrease in body weight, when you did not try to lose the weight on your own. Many people gain and lose weight. Uninten...
Read Article Now Book Mark ArticleCauses
A decreased appetite is often seen in older adults. Often, no physical cause is found. Emotions such as sadness, depression, or grief can lead to a loss of appetite.
Cancer can also cause decreased appetite. You may lose weight without trying. Cancers that may cause you to lose your appetite include:
- Colon cancer
Colon cancer
Colon cancer screening can detect polyps and early cancers in the large intestine. This type of screening can find problems that can be treated befo...
Read Article Now Book Mark Article - Ovarian cancer
Ovarian cancer
Ovarian cancer is cancer that starts in the ovaries. The ovaries are the female reproductive organs that produce eggs.
Read Article Now Book Mark Article - Stomach cancer
Stomach cancer
Stomach cancer is cancer that starts in the stomach.
Read Article Now Book Mark Article - Pancreatic cancer
Pancreatic cancer
Pancreatic cancer is cancer that starts in the pancreas.
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Other causes of decreased appetite include:
- Chronic liver disease
- Chronic kidney disease
Chronic kidney disease
Chronic kidney disease is the slow loss of kidney function over time. The main job of the kidneys is to remove wastes and excess water from the body...
Read Article Now Book Mark Article - Chronic obstructive pulmonary disease (COPD)
- Dementia
- Heart failure
- Hepatitis
- HIV
- Underactive thyroid (hypothyroidism)
- Pregnancy (first trimester)
- Use of certain medicines, including antibiotics, chemotherapy medicines, codeine, and morphine
- Use of street drugs, including amphetamines (speed), cocaine, and heroin
Home Care
People with cancer or a chronic illness that causes weight loss need to increase their protein and calorie intake by eating high-calorie, nutritious snacks or several small meals during the day. Liquid protein drinks may be helpful.
Family members should try to supply favorite foods to help stimulate the person's appetite.
Keep a record of what you eat and drink for 24 or more hours. This is called a diet history.
When to Contact a Medical Professional
Contact your health care provider if you lose more than 10 pounds or 4.5 kilograms (kg) without trying.
Seek medical help if decreased appetite occurs along with other signs of depression, prescription medicine, illegal drug or alcohol use, or an eating disorder.
For loss of appetite caused by medicines, ask your provider about changing the dosage or medicine. Do not stop taking any medicine without first talking to your provider.
What to Expect at Your Office Visit
Your provider will perform a physical exam and will check your height and weight.
You'll be asked about diet and medical history. Questions may include:
- Is the decreased appetite severe or mild?
- Have you lost any weight? How much?
- Is the decreased appetite a new symptom?
- If so, did it start after an upsetting event, such as the death of a family member or friend?
- What other symptoms are present?
Tests that may be done include imaging tests, such as x-ray or ultrasound. Blood and urine tests may also be ordered.
x-ray
X-rays are a type of electromagnetic radiation, just like visible light. An x-ray machine sends individual x-ray waves through the body. The images...
Read Article Now Book Mark ArticleUltrasound
Ultrasound uses high-frequency sound waves to make images of organs and structures inside the body.
Read Article Now Book Mark ArticleIn cases of severe malnutrition, nutrients are given through a vein (intravenously). This may require a hospital stay.
Reviewed By
Linda J. Vorvick, MD, Clinical Professor, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
Mason JB. Nutritional principles and assessment of the gastroenterology patient. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger & Fordtran's Gastrointestinal and Liver Disease. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 5.
McGee S. Protein-energy malnutrition and weight loss. In: McGee S, ed. Evidence-Based Physical Diagnosis. 5th ed. Philadelphia, PA: Elsevier; 2022:chap 12.
McQuaid KR. Approach to the patient with gastrointestinal disease. In: Goldman L, Cooney KA, eds. Goldman-Cecil Medicine. 27th ed. Philadelphia, PA: Elsevier; 2024:chap 118.