The best time to eat apples is between meals. Apples have high nutritional value and are rich in many minerals and vitamins, such as calcium, which helps metabolize excess salt in the body, and malic acid, which metabolizes calories and can effectively prevent obesity. Apples also contain a large amount of fructose, vitamin C and pectin, which promote intestinal peristalsis and increase intestinal metabolism. Eating between meals is good for expelling food residues and feces from the gastrointestinal tract, reducing the absorption of high-calorie substances in food, and achieving a healthy diet, relieving constipation and reducing weight. People with peptic ulcers, acute and chronic stomach diseases should eat apples about one hour after meals to reduce the stimulation of malic acid on the gastric mucosa, and it is best to eat apples after steaming, which will not stimulate the mucosa of the gastrointestinal tract, and other nutrients will not be lost, which is beneficial for people with chronic gastrointestinal diseases. It is recommended that apples be peeled and chewed as slowly as possible to avoid stimulating the gastrointestinal tract and causing digestive problems.