If you have stomach diseases, it is best not to eat walnuts, because walnuts contain dietary fiber and are not easily absorbed. Eating a large amount of walnuts will irritate the damaged gastric mucosa

, aggravating the condition of gastric ulcer and causing stomach pain. Walnuts are high in fat and dietary fiber, so people with poor gastrointestinal problems who eat too many walnuts will increase gastrointestinal pressure, cause indigestion, and worsen the disease such as gastritis or gastric ulcers. The recommended daily consumption of walnuts is 20-40g, which is equivalent to four or five walnuts.