It is recommended that apples be consumed in the morning about one hour after breakfast, so that they can better exert their therapeutic effect and help improve the functional operation of intestinal tissues. Apples contain more acidic substances such as fruit acids and tannins. If apples are consumed on an empty stomach, they may have a stimulating effect on the mucous membrane of the stomach wall, increasing the probability of spasm in the stomach tissues, thus inducing stomach bloating, stomach pain, acid reflux and other uncomfortable symptoms. One hour after eating breakfast, the nutrients contained in the food in the stomach have been decomposed and transformed into the intestinal tissues, so eating apples in moderation at this time has a positive impact on speeding up the peristalsis of the intestinal tissues and promoting the discharge of metabolic substances. However, it should be noted that apples are hard fruits and should be chewed as slowly as possible to reduce the burden on the gastrointestinal tract. Then there are apples to avoid eating with shrimp, crab, milk, spinach and other high-calcium foods to avoid mixed reactions with tannic acid, causing diarrhea, abdominal pain and other adverse symptoms reactions.