Fruits, with their sweet and sour taste, are enjoyed by everyone. They are not only a pleasure for people to enjoy after meals, but also provide the human body with rich vitamins and inorganic salts. The various nutrients in fruits, such as vitamins, inorganic salts, sugars, cellulose, and organic acids, are essential for maintaining good health. Eating fruits regularly can quench thirst, relieve fatigue, and help digestion. For the elderly, eating fruits can moisturize the skin, nourish hair, reduce wrinkles, protect vision, and alleviate symptoms of aging.
In recent years, medical experts in the United States, Japan, and other countries have proven that apples, like lipid-lowering drugs, can lower cholesterol in the blood. Their effectiveness lies in the fact that apples themselves contain no cholesterol; apples can promote the excretion of cholesterol from bile; apples contain a large amount of pectin, which can prevent the reabsorption of cholesterol in the intestines and promote the excretion of bile acids, thereby reducing cholesterol levels; acetic acid produced from the breakdown of apples in the intestine is beneficial to cholesterol metabolism; apples are also rich in vitamin C, fructose, trace elements such as magnesium, and other substances that promote cholesterol metabolism.由此可见，苹果对老年人，尤其是胆固醇高的人，称得上是最理想的水果。
Due to slowed gastrointestinal motility, the elderly are prone to constipation and can often eat bananas, peaches, and oranges, which have a mild laxative effect. For the elderly with poor gastrointestinal function and frequent diarrhea, they can eat some raw pomegranates, which have an astringent and intestine-stabilizing effect to stop diarrhea and regulate the intestines. Bananas are rich in carbohydrates and inorganic salts, and regular consumption can refresh the elderly. Bananas are also rich in potassium, which is effective in reducing the degree of arteriosclerosis and treating hypertension. Bananas are ranked among the top 15 foods recommended by scientists for treating hypertension.
The disease-preventing and health-promoting effects of fruits are irreplaceable by other foods. For example, citrus fruits are rich in inorganic salts and can clear heat and benefit the stomach; raw hawthorn and pomelo are effective in preventing and treating "virtual fire" in the elderly.
Although fruits are good, the elderly should not eat too much at one time and can adopt the method of eating small meals frequently. It is not advisable to eat fruits before meals, so as not to affect normal eating and digestion. People with excessive stomach acid should not eat fruits high in organic acids such as plums, hawthorn, and lemons; elderly people with diabetes should not only eat less sugar but also reduce their intake of high-sugar fruits, such as pears, bananas, apples, and oranges.