The question of whether or not ankylosing spondylitis needs to be avoided really depends on which side of the answer. From the point of view of the disease itself, diet does not seem to have much influence on the progression of ankylosing spondylitis and does not seem to require contraindication. However, patients with ankylosing spondylitis take long-term oral non-steroidal anti-inflammatory drugs such as Cilobal, Fotarim, Mobic, Ereximab, etc., and some patients also take prednisone for a short period of time. These drugs more or less stimulate the gastric mucosa, leading to a certain degree of stomach damage, therefore, the diet requires attention to eat more foods that protect the gastric mucosa: such as milk, millet, thin porridge, okra, pumpkin, etc., and avoid eating foods that stimulate Avoid foods that stimulate acid secretion such as leeks, groundnuts, spicy foods such as chili peppers and fries, and hard foods. The patient with ankylosing spondylitis will have secondary osteoporosis, and with the progress of the disease is getting heavier, plus some patients actively or passively taking hormones for a long time, so you can properly supplement the food rich in calcium and vitamin D, such as sea fish, animal liver, egg yolk lean meat, bone soup, and combined with outdoor exercise, sun exposure, can prevent osteoporosis. In addition, it is important to stop smoking and limit alcohol. Quitting smoking can hinder drug absorption, accelerate drug metabolism, and increase drug toxicity; in addition, smoking can impair lung function, and patients with ankylosing spondylitis have decreased thoracic mobility because of spinal involvement; therefore, lung function is affected by the condition itself, and if they smoke again, it will worsen lung function. In combination with the above, patients with ankylosing spondylitis must quit smoking. Alcohol consumption can be irritating to the gastric mucosa and damaging to the liver; therefore, patients with ankylosing spondylitis need to limit alcohol.