Many patients with ankylosing spondylitis will suffer from anorexia.
Anorexia means a loss of appetite. Anorexia is a persistent problem with many chronic diseases. It is also a common side effect of many medications used to treat chronic disease.
Good nutrition is an important part of a successful treatment program. Home care for anorexia includes:
- Avoid stomach irritants such as aspirin or ibuprofen.
- Avoid excessive caffeine and other stimulants.
- Check with your doctor about drinking alcohol.
- Do not force yourself to eat at standard times. Eat when you are hungry instead.
- Concentrate on eating a healthy diet. Avoid junk foods.
- Select healthy, high-calorie foods that you enjoy.
- Eat more frequent, smaller meals.
- Get some exercise every day.
- Keep a daily log of your weight.
- Don't smoke. Nicotine can suppress the appetite.
- Ask your doctor or nutritionist about dietary supplements.
- Ask your doctor if any medications you may be taking can cause anorexia.
- Take any prescribed medications as directed.
- Anti-nausea medications:
- Appetite stimulants:
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- Zochling J, Braun J. Management and treatment of ankylosing spondylitis. Curr Opin Rheumatol. 2005 Jul;17(4):418-25. 
- Zochling J, van der Heijde D, Dougados M, Braun J. Current evidence for the management of ankylosing spondylitis a systematic literature review for the asas/eular management recommendations in ankylosing spondylitis. Ann Rheum Dis. 2005 Aug 26.