People with stomach problems should not eat garlic. Many people have stomach problems due to excessive secretion of gastric acid, and these people should take drugs that inhibit gastric acid secretion. Garlic can stimulate the secretion of gastric acid after ingestion because it is pungent and stimulating, leading to an increase in gastric acid and, in turn, aggravating the symptoms of stomach diseases. Garlic takes a relatively long time to digest in the stomach and produces a lot of gas when digesting, which leads to stomach distention. In people with stomach diseases, the peristaltic function of the stomach itself is affected, and the condition is aggravated when the stomach is distended. When garlic is ingested into the stomach, it can cause some stimulation to the sphincter of the cardia and pylorus, and even cause relaxation of the sphincter, which can lead to acid reflux in some people, causing the onset of reflux gastritis and reflux esophagitis. People with stomach problems should choose medications according to their symptoms and treat their stomach disorders, while taking good care of their diet to help them recover.